ostc4: Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll

author	heinrichsweikamp
date	Tue, 28 Jan 2025 16:15:31 +0100 (2 months ago)
parents	c78bcbd5deda
children

rev	line source
128 c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	1 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	2 ******************************************************************************
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	3 * @file stm32f4xx_ll_spi.c
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	4 * @author MCD Application Team
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	5 * @brief SPI LL module driver.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	6 ******************************************************************************
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	7 * @attention
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	8 *
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	9 * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	10 *
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	11 * Redistribution and use in source and binary forms, with or without modification,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	12 * are permitted provided that the following conditions are met:
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	13 * 1. Redistributions of source code must retain the above copyright notice,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	14 * this list of conditions and the following disclaimer.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	15 * 2. Redistributions in binary form must reproduce the above copyright notice,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	16 * this list of conditions and the following disclaimer in the documentation
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	17 * and/or other materials provided with the distribution.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	18 * 3. Neither the name of STMicroelectronics nor the names of its contributors
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	19 * may be used to endorse or promote products derived from this software
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	20 * without specific prior written permission.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	21 *
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	25 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	32 *
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	33 ******************************************************************************
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	34 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	35 #if defined(USE_FULL_LL_DRIVER)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	36
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	37 /* Includes ------------------------------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	38 #include "stm32f4xx_ll_spi.h"
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	39 #include "stm32f4xx_ll_bus.h"
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	40 #include "stm32f4xx_ll_rcc.h"
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	41
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	42 #ifdef USE_FULL_ASSERT
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	43 #include "stm32_assert.h"
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	44 #else
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	45 #define assert_param(expr) ((void)0U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	46 #endif
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	47
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	48 /** @addtogroup STM32F4xx_LL_Driver
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	49 * @{
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	50 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	51
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	52 #if defined (SPI1) \|\| defined (SPI2) \|\| defined (SPI3) \|\| defined (SPI4) \|\| defined (SPI5) \|\| defined(SPI6)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	53
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	54 /** @addtogroup SPI_LL
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	55 * @{
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	56 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	57
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	58 /* Private types -------------------------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	59 /* Private variables ---------------------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	60
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	61 /* Private constants ---------------------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	62 /** @defgroup SPI_LL_Private_Constants SPI Private Constants
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	63 * @{
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	64 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	65 /* SPI registers Masks */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	66 #define SPI_CR1_CLEAR_MASK (SPI_CR1_CPHA \| SPI_CR1_CPOL \| SPI_CR1_MSTR \| \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	67 SPI_CR1_BR \| SPI_CR1_LSBFIRST \| SPI_CR1_SSI \| \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	68 SPI_CR1_SSM \| SPI_CR1_RXONLY \| SPI_CR1_DFF \| \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	69 SPI_CR1_CRCNEXT \| SPI_CR1_CRCEN \| SPI_CR1_BIDIOE \| \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	70 SPI_CR1_BIDIMODE)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	71 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	72 * @}
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	73 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	74
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	75 /* Private macros ------------------------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	76 /** @defgroup SPI_LL_Private_Macros SPI Private Macros
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	77 * @{
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	78 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	79 #define IS_LL_SPI_TRANSFER_DIRECTION(__VALUE__) (((__VALUE__) == LL_SPI_FULL_DUPLEX) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	80 \|\| ((__VALUE__) == LL_SPI_SIMPLEX_RX) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	81 \|\| ((__VALUE__) == LL_SPI_HALF_DUPLEX_RX) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	82 \|\| ((__VALUE__) == LL_SPI_HALF_DUPLEX_TX))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	83
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	84 #define IS_LL_SPI_MODE(__VALUE__) (((__VALUE__) == LL_SPI_MODE_MASTER) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	85 \|\| ((__VALUE__) == LL_SPI_MODE_SLAVE))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	86
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	87 #define IS_LL_SPI_DATAWIDTH(__VALUE__) (((__VALUE__) == LL_SPI_DATAWIDTH_8BIT) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	88 \|\| ((__VALUE__) == LL_SPI_DATAWIDTH_16BIT))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	89
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	90 #define IS_LL_SPI_POLARITY(__VALUE__) (((__VALUE__) == LL_SPI_POLARITY_LOW) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	91 \|\| ((__VALUE__) == LL_SPI_POLARITY_HIGH))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	92
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	93 #define IS_LL_SPI_PHASE(__VALUE__) (((__VALUE__) == LL_SPI_PHASE_1EDGE) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	94 \|\| ((__VALUE__) == LL_SPI_PHASE_2EDGE))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	95
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	96 #define IS_LL_SPI_NSS(__VALUE__) (((__VALUE__) == LL_SPI_NSS_SOFT) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	97 \|\| ((__VALUE__) == LL_SPI_NSS_HARD_INPUT) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	98 \|\| ((__VALUE__) == LL_SPI_NSS_HARD_OUTPUT))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	99
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	100 #define IS_LL_SPI_BAUDRATE(__VALUE__) (((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV2) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	101 \|\| ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV4) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	102 \|\| ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV8) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	103 \|\| ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV16) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	104 \|\| ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV32) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	105 \|\| ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV64) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	106 \|\| ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV128) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	107 \|\| ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV256))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	108
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	109 #define IS_LL_SPI_BITORDER(__VALUE__) (((__VALUE__) == LL_SPI_LSB_FIRST) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	110 \|\| ((__VALUE__) == LL_SPI_MSB_FIRST))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	111
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	112 #define IS_LL_SPI_CRCCALCULATION(__VALUE__) (((__VALUE__) == LL_SPI_CRCCALCULATION_ENABLE) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	113 \|\| ((__VALUE__) == LL_SPI_CRCCALCULATION_DISABLE))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	114
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	115 #define IS_LL_SPI_CRC_POLYNOMIAL(__VALUE__) ((__VALUE__) >= 0x1U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	116
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	117 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	118 * @}
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	119 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	120
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	121 /* Private function prototypes -----------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	122
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	123 /* Exported functions --------------------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	124 /** @addtogroup SPI_LL_Exported_Functions
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	125 * @{
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	126 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	127
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	128 /** @addtogroup SPI_LL_EF_Init
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	129 * @{
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	130 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	131
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	132 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	133 * @brief De-initialize the SPI registers to their default reset values.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	134 * @param SPIx SPI Instance
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	135 * @retval An ErrorStatus enumeration value:
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	136 * - SUCCESS: SPI registers are de-initialized
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	137 * - ERROR: SPI registers are not de-initialized
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	138 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	139 ErrorStatus LL_SPI_DeInit(SPI_TypeDef *SPIx)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	140 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	141 ErrorStatus status = ERROR;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	142
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	143 /* Check the parameters */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	144 assert_param(IS_SPI_ALL_INSTANCE(SPIx));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	145
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	146 #if defined(SPI1)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	147 if (SPIx == SPI1)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	148 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	149 /* Force reset of SPI clock */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	150 LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_SPI1);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	151
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	152 /* Release reset of SPI clock */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	153 LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_SPI1);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	154
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	155 status = SUCCESS;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	156 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	157 #endif /* SPI1 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	158 #if defined(SPI2)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	159 if (SPIx == SPI2)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	160 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	161 /* Force reset of SPI clock */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	162 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_SPI2);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	163
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	164 /* Release reset of SPI clock */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	165 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_SPI2);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	166
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	167 status = SUCCESS;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	168 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	169 #endif /* SPI2 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	170 #if defined(SPI3)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	171 if (SPIx == SPI3)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	172 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	173 /* Force reset of SPI clock */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	174 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_SPI3);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	175
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	176 /* Release reset of SPI clock */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	177 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_SPI3);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	178
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	179 status = SUCCESS;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	180 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	181 #endif /* SPI3 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	182 #if defined(SPI4)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	183 if (SPIx == SPI4)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	184 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	185 /* Force reset of SPI clock */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	186 LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_SPI4);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	187
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	188 /* Release reset of SPI clock */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	189 LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_SPI4);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	190
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	191 status = SUCCESS;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	192 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	193 #endif /* SPI4 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	194 #if defined(SPI5)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	195 if (SPIx == SPI5)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	196 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	197 /* Force reset of SPI clock */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	198 LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_SPI5);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	199
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	200 /* Release reset of SPI clock */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	201 LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_SPI5);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	202
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	203 status = SUCCESS;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	204 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	205 #endif /* SPI5 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	206 #if defined(SPI6)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	207 if (SPIx == SPI6)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	208 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	209 /* Force reset of SPI clock */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	210 LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_SPI6);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	211
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	212 /* Release reset of SPI clock */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	213 LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_SPI6);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	214
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	215 status = SUCCESS;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	216 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	217 #endif /* SPI6 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	218
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	219 return status;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	220 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	221
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	222 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	223 * @brief Initialize the SPI registers according to the specified parameters in SPI_InitStruct.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	224 * @note As some bits in SPI configuration registers can only be written when the SPI is disabled (SPI_CR1_SPE bit =0),
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	225 * SPI IP should be in disabled state prior calling this function. Otherwise, ERROR result will be returned.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	226 * @param SPIx SPI Instance
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	227 * @param SPI_InitStruct pointer to a @ref LL_SPI_InitTypeDef structure
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	228 * @retval An ErrorStatus enumeration value. (Return always SUCCESS)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	229 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	230 ErrorStatus LL_SPI_Init(SPI_TypeDef SPIx, LL_SPI_InitTypeDef SPI_InitStruct)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	231 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	232 ErrorStatus status = ERROR;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	233
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	234 /* Check the SPI Instance SPIx*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	235 assert_param(IS_SPI_ALL_INSTANCE(SPIx));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	236
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	237 /* Check the SPI parameters from SPI_InitStruct*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	238 assert_param(IS_LL_SPI_TRANSFER_DIRECTION(SPI_InitStruct->TransferDirection));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	239 assert_param(IS_LL_SPI_MODE(SPI_InitStruct->Mode));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	240 assert_param(IS_LL_SPI_DATAWIDTH(SPI_InitStruct->DataWidth));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	241 assert_param(IS_LL_SPI_POLARITY(SPI_InitStruct->ClockPolarity));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	242 assert_param(IS_LL_SPI_PHASE(SPI_InitStruct->ClockPhase));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	243 assert_param(IS_LL_SPI_NSS(SPI_InitStruct->NSS));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	244 assert_param(IS_LL_SPI_BAUDRATE(SPI_InitStruct->BaudRate));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	245 assert_param(IS_LL_SPI_BITORDER(SPI_InitStruct->BitOrder));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	246 assert_param(IS_LL_SPI_CRCCALCULATION(SPI_InitStruct->CRCCalculation));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	247
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	248 if (LL_SPI_IsEnabled(SPIx) == 0x00000000U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	249 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	250 /*---------------------------- SPIx CR1 Configuration ------------------------
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	251 * Configure SPIx CR1 with parameters:
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	252 * - TransferDirection: SPI_CR1_BIDIMODE, SPI_CR1_BIDIOE and SPI_CR1_RXONLY bits
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	253 * - Master/Slave Mode: SPI_CR1_MSTR bit
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	254 * - DataWidth: SPI_CR1_DFF bit
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	255 * - ClockPolarity: SPI_CR1_CPOL bit
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	256 * - ClockPhase: SPI_CR1_CPHA bit
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	257 * - NSS management: SPI_CR1_SSM bit
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	258 * - BaudRate prescaler: SPI_CR1_BR[2:0] bits
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	259 * - BitOrder: SPI_CR1_LSBFIRST bit
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	260 * - CRCCalculation: SPI_CR1_CRCEN bit
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	261 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	262 MODIFY_REG(SPIx->CR1,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	263 SPI_CR1_CLEAR_MASK,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	264 SPI_InitStruct->TransferDirection \| SPI_InitStruct->Mode \| SPI_InitStruct->DataWidth \|
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	265 SPI_InitStruct->ClockPolarity \| SPI_InitStruct->ClockPhase \|
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	266 SPI_InitStruct->NSS \| SPI_InitStruct->BaudRate \|
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	267 SPI_InitStruct->BitOrder \| SPI_InitStruct->CRCCalculation);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	268
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	269 /*---------------------------- SPIx CR2 Configuration ------------------------
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	270 * Configure SPIx CR2 with parameters:
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	271 * - NSS management: SSOE bit
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	272 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	273 MODIFY_REG(SPIx->CR2, SPI_CR2_SSOE, (SPI_InitStruct->NSS >> 16U));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	274
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	275 /*---------------------------- SPIx CRCPR Configuration ----------------------
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	276 * Configure SPIx CRCPR with parameters:
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	277 * - CRCPoly: CRCPOLY[15:0] bits
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	278 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	279 if (SPI_InitStruct->CRCCalculation == LL_SPI_CRCCALCULATION_ENABLE)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	280 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	281 assert_param(IS_LL_SPI_CRC_POLYNOMIAL(SPI_InitStruct->CRCPoly));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	282 LL_SPI_SetCRCPolynomial(SPIx, SPI_InitStruct->CRCPoly);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	283 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	284 status = SUCCESS;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	285 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	286
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	287 /* Activate the SPI mode (Reset I2SMOD bit in I2SCFGR register) */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	288 CLEAR_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SMOD);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	289 return status;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	290 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	291
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	292 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	293 * @brief Set each @ref LL_SPI_InitTypeDef field to default value.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	294 * @param SPI_InitStruct pointer to a @ref LL_SPI_InitTypeDef structure
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	295 * whose fields will be set to default values.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	296 * @retval None
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	297 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	298 void LL_SPI_StructInit(LL_SPI_InitTypeDef *SPI_InitStruct)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	299 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	300 /* Set SPI_InitStruct fields to default values */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	301 SPI_InitStruct->TransferDirection = LL_SPI_FULL_DUPLEX;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	302 SPI_InitStruct->Mode = LL_SPI_MODE_SLAVE;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	303 SPI_InitStruct->DataWidth = LL_SPI_DATAWIDTH_8BIT;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	304 SPI_InitStruct->ClockPolarity = LL_SPI_POLARITY_LOW;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	305 SPI_InitStruct->ClockPhase = LL_SPI_PHASE_1EDGE;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	306 SPI_InitStruct->NSS = LL_SPI_NSS_HARD_INPUT;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	307 SPI_InitStruct->BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV2;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	308 SPI_InitStruct->BitOrder = LL_SPI_MSB_FIRST;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	309 SPI_InitStruct->CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	310 SPI_InitStruct->CRCPoly = 7U;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	311 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	312
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	313 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	314 * @}
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	315 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	316
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	317 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	318 * @}
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	319 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	320
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	321 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	322 * @}
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	323 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	324
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	325 /** @addtogroup I2S_LL
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	326 * @{
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	327 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	328
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	329 /* Private types -------------------------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	330 /* Private variables ---------------------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	331 /* Private constants ---------------------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	332 /** @defgroup I2S_LL_Private_Constants I2S Private Constants
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	333 * @{
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	334 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	335 /* I2S registers Masks */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	336 #define I2S_I2SCFGR_CLEAR_MASK (SPI_I2SCFGR_CHLEN \| SPI_I2SCFGR_DATLEN \| \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	337 SPI_I2SCFGR_CKPOL \| SPI_I2SCFGR_I2SSTD \| \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	338 SPI_I2SCFGR_I2SCFG \| SPI_I2SCFGR_I2SMOD )
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	339
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	340 #define I2S_I2SPR_CLEAR_MASK 0x0002U
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	341 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	342 * @}
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	343 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	344 /* Private macros ------------------------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	345 /** @defgroup I2S_LL_Private_Macros I2S Private Macros
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	346 * @{
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	347 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	348
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	349 #define IS_LL_I2S_DATAFORMAT(__VALUE__) (((__VALUE__) == LL_I2S_DATAFORMAT_16B) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	350 \|\| ((__VALUE__) == LL_I2S_DATAFORMAT_16B_EXTENDED) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	351 \|\| ((__VALUE__) == LL_I2S_DATAFORMAT_24B) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	352 \|\| ((__VALUE__) == LL_I2S_DATAFORMAT_32B))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	353
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	354 #define IS_LL_I2S_CPOL(__VALUE__) (((__VALUE__) == LL_I2S_POLARITY_LOW) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	355 \|\| ((__VALUE__) == LL_I2S_POLARITY_HIGH))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	356
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	357 #define IS_LL_I2S_STANDARD(__VALUE__) (((__VALUE__) == LL_I2S_STANDARD_PHILIPS) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	358 \|\| ((__VALUE__) == LL_I2S_STANDARD_MSB) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	359 \|\| ((__VALUE__) == LL_I2S_STANDARD_LSB) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	360 \|\| ((__VALUE__) == LL_I2S_STANDARD_PCM_SHORT) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	361 \|\| ((__VALUE__) == LL_I2S_STANDARD_PCM_LONG))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	362
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	363 #define IS_LL_I2S_MODE(__VALUE__) (((__VALUE__) == LL_I2S_MODE_SLAVE_TX) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	364 \|\| ((__VALUE__) == LL_I2S_MODE_SLAVE_RX) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	365 \|\| ((__VALUE__) == LL_I2S_MODE_MASTER_TX) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	366 \|\| ((__VALUE__) == LL_I2S_MODE_MASTER_RX))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	367
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	368 #define IS_LL_I2S_MCLK_OUTPUT(__VALUE__) (((__VALUE__) == LL_I2S_MCLK_OUTPUT_ENABLE) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	369 \|\| ((__VALUE__) == LL_I2S_MCLK_OUTPUT_DISABLE))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	370
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	371 #define IS_LL_I2S_AUDIO_FREQ(__VALUE__) ((((__VALUE__) >= LL_I2S_AUDIOFREQ_8K) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	372 && ((__VALUE__) <= LL_I2S_AUDIOFREQ_192K)) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	373 \|\| ((__VALUE__) == LL_I2S_AUDIOFREQ_DEFAULT))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	374
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	375 #define IS_LL_I2S_PRESCALER_LINEAR(__VALUE__) ((__VALUE__) >= 0x2U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	376
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	377 #define IS_LL_I2S_PRESCALER_PARITY(__VALUE__) (((__VALUE__) == LL_I2S_PRESCALER_PARITY_EVEN) \
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	378 \|\| ((__VALUE__) == LL_I2S_PRESCALER_PARITY_ODD))
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	379 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	380 * @}
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	381 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	382
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	383 /* Private function prototypes -----------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	384
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	385 /* Exported functions --------------------------------------------------------*/
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	386 /** @addtogroup I2S_LL_Exported_Functions
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	387 * @{
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	388 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	389
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	390 /** @addtogroup I2S_LL_EF_Init
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	391 * @{
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	392 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	393
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	394 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	395 * @brief De-initialize the SPI/I2S registers to their default reset values.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	396 * @param SPIx SPI Instance
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	397 * @retval An ErrorStatus enumeration value:
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	398 * - SUCCESS: SPI registers are de-initialized
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	399 * - ERROR: SPI registers are not de-initialized
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	400 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	401 ErrorStatus LL_I2S_DeInit(SPI_TypeDef *SPIx)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	402 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	403 return LL_SPI_DeInit(SPIx);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	404 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	405
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	406 /**
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	407 * @brief Initializes the SPI/I2S registers according to the specified parameters in I2S_InitStruct.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	408 * @note As some bits in SPI configuration registers can only be written when the SPI is disabled (SPI_CR1_SPE bit =0),
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	409 * SPI IP should be in disabled state prior calling this function. Otherwise, ERROR result will be returned.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	410 * @param SPIx SPI Instance
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	411 * @param I2S_InitStruct pointer to a @ref LL_I2S_InitTypeDef structure
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	412 * @retval An ErrorStatus enumeration value:
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	413 * - SUCCESS: SPI registers are Initialized
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	414 * - ERROR: SPI registers are not Initialized
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	415 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	416 ErrorStatus LL_I2S_Init(SPI_TypeDef SPIx, LL_I2S_InitTypeDef I2S_InitStruct)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	417 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	418 uint16_t i2sdiv = 2U, i2sodd = 0U, packetlength = 1U;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	419 uint32_t tmp = 0U;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	420 uint32_t sourceclock = 0U;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	421 ErrorStatus status = ERROR;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	422
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	423 /* Check the I2S parameters */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	424 assert_param(IS_I2S_ALL_INSTANCE(SPIx));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	425 assert_param(IS_LL_I2S_MODE(I2S_InitStruct->Mode));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	426 assert_param(IS_LL_I2S_STANDARD(I2S_InitStruct->Standard));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	427 assert_param(IS_LL_I2S_DATAFORMAT(I2S_InitStruct->DataFormat));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	428 assert_param(IS_LL_I2S_MCLK_OUTPUT(I2S_InitStruct->MCLKOutput));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	429 assert_param(IS_LL_I2S_AUDIO_FREQ(I2S_InitStruct->AudioFreq));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	430 assert_param(IS_LL_I2S_CPOL(I2S_InitStruct->ClockPolarity));
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	431
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	432 if (LL_I2S_IsEnabled(SPIx) == 0x00000000U)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	433 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	434 /*---------------------------- SPIx I2SCFGR Configuration --------------------
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	435 * Configure SPIx I2SCFGR with parameters:
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	436 * - Mode: SPI_I2SCFGR_I2SCFG[1:0] bit
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	437 * - Standard: SPI_I2SCFGR_I2SSTD[1:0] and SPI_I2SCFGR_PCMSYNC bits
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	438 * - DataFormat: SPI_I2SCFGR_CHLEN and SPI_I2SCFGR_DATLEN bits
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	439 * - ClockPolarity: SPI_I2SCFGR_CKPOL bit
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	440 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	441
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	442 /* Write to SPIx I2SCFGR */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	443 MODIFY_REG(SPIx->I2SCFGR,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	444 I2S_I2SCFGR_CLEAR_MASK,
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	445 I2S_InitStruct->Mode \| I2S_InitStruct->Standard \|
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	446 I2S_InitStruct->DataFormat \| I2S_InitStruct->ClockPolarity \|
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	447 SPI_I2SCFGR_I2SMOD);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	448
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	449 /*---------------------------- SPIx I2SPR Configuration ----------------------
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	450 * Configure SPIx I2SPR with parameters:
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	451 * - MCLKOutput: SPI_I2SPR_MCKOE bit
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	452 * - AudioFreq: SPI_I2SPR_I2SDIV[7:0] and SPI_I2SPR_ODD bits
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	453 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	454
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	455 /* If the requested audio frequency is not the default, compute the prescaler (i2sodd, i2sdiv)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	456 * else, default values are used: i2sodd = 0U, i2sdiv = 2U.
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	457 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	458 if (I2S_InitStruct->AudioFreq != LL_I2S_AUDIOFREQ_DEFAULT)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	459 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	460 /* Check the frame length (For the Prescaler computing)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	461 * Default value: LL_I2S_DATAFORMAT_16B (packetlength = 1U).
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	462 */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	463 if (I2S_InitStruct->DataFormat != LL_I2S_DATAFORMAT_16B)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	464 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	465 /* Packet length is 32 bits */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	466 packetlength = 2U;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	467 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	468
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	469 /* If an external I2S clock has to be used, the specific define should be set
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	470 in the project configuration or in the stm32f4xx_ll_rcc.h file */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	471 /* Get the I2S source clock value */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	472 sourceclock = LL_RCC_GetI2SClockFreq(LL_RCC_I2S1_CLKSOURCE);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	473
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	474 /* Compute the Real divider depending on the MCLK output state with a floating point */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	475 if (I2S_InitStruct->MCLKOutput == LL_I2S_MCLK_OUTPUT_ENABLE)
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	476 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	477 /* MCLK output is enabled */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	478 tmp = (uint16_t)(((((sourceclock / 256U) * 10U) / I2S_InitStruct->AudioFreq)) + 5U);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	479 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	480 else
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	481 {
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	482 /* MCLK output is disabled */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	483 tmp = (uint16_t)(((((sourceclock / (32U * packetlength)) * 10U) / I2S_InitStruct->AudioFreq)) + 5U);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	484 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	485
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	486 /* Remove the floating point */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	487 tmp = tmp / 10U;
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	488
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	489 /* Check the parity of the divider */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	490 i2sodd = (uint16_t)(tmp & (uint16_t)0x0001U);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	491
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	492 /* Compute the i2sdiv prescaler */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	493 i2sdiv = (uint16_t)((tmp - i2sodd) / 2U);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	494
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	495 /* Get the Mask for the Odd bit (SPI_I2SPR[8]) register */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	496 i2sodd = (uint16_t)(i2sodd << 8U);
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	497 }
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	498
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	499 /* Test if the divider is 1 or 0 or greater than 0xFF */
c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure Ideenmodellierer parents: diff changeset	500 if ((i2sdiv < 2U) \|\| (i2sdiv > 0xFFU))

128

c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure

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1 /**

c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure

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2 ******************************************************************************

c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure

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3 * @file stm32f4xx_ll_spi.c

c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure

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4 * @author MCD Application Team

c78bcbd5deda Added current STM32 standandard libraries in version independend folder structure

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5 * @brief SPI LL module driver.

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6 ******************************************************************************

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7 * @attention

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8 *

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10 *

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11 * Redistribution and use in source and binary forms, with or without modification,

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12 * are permitted provided that the following conditions are met:

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13 * 1. Redistributions of source code must retain the above copyright notice,

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14 * this list of conditions and the following disclaimer.

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15 * 2. Redistributions in binary form must reproduce the above copyright notice,

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16 * this list of conditions and the following disclaimer in the documentation

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17 * and/or other materials provided with the distribution.

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18 * 3. Neither the name of STMicroelectronics nor the names of its contributors

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19 * may be used to endorse or promote products derived from this software

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20 * without specific prior written permission.

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21 *

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22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

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23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

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25 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE

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26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

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28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

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29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

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30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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32 *

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33 ******************************************************************************

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34 */

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35 #if defined(USE_FULL_LL_DRIVER)

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36

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37 /* Includes ------------------------------------------------------------------*/

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38 #include "stm32f4xx_ll_spi.h"

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39 #include "stm32f4xx_ll_bus.h"

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40 #include "stm32f4xx_ll_rcc.h"

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41

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42 #ifdef USE_FULL_ASSERT

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43 #include "stm32_assert.h"

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44 #else

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45 #define assert_param(expr) ((void)0U)

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46 #endif

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47

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48 /** @addtogroup STM32F4xx_LL_Driver

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49 * @{

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50 */

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51

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52 #if defined (SPI1) || defined (SPI2) || defined (SPI3) || defined (SPI4) || defined (SPI5) || defined(SPI6)

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53

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54 /** @addtogroup SPI_LL

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55 * @{

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56 */

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57

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58 /* Private types -------------------------------------------------------------*/

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59 /* Private variables ---------------------------------------------------------*/

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60

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61 /* Private constants ---------------------------------------------------------*/

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62 /** @defgroup SPI_LL_Private_Constants SPI Private Constants

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63 * @{

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64 */

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65 /* SPI registers Masks */

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66 #define SPI_CR1_CLEAR_MASK (SPI_CR1_CPHA | SPI_CR1_CPOL | SPI_CR1_MSTR | \

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67 SPI_CR1_BR | SPI_CR1_LSBFIRST | SPI_CR1_SSI | \

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68 SPI_CR1_SSM | SPI_CR1_RXONLY | SPI_CR1_DFF | \

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69 SPI_CR1_CRCNEXT | SPI_CR1_CRCEN | SPI_CR1_BIDIOE | \

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70 SPI_CR1_BIDIMODE)

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71 /**

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72 * @}

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73 */

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74

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75 /* Private macros ------------------------------------------------------------*/

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76 /** @defgroup SPI_LL_Private_Macros SPI Private Macros

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77 * @{

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78 */

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79 #define IS_LL_SPI_TRANSFER_DIRECTION(__VALUE__) (((__VALUE__) == LL_SPI_FULL_DUPLEX) \

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80 || ((__VALUE__) == LL_SPI_SIMPLEX_RX) \

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81 || ((__VALUE__) == LL_SPI_HALF_DUPLEX_RX) \

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82 || ((__VALUE__) == LL_SPI_HALF_DUPLEX_TX))

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83

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84 #define IS_LL_SPI_MODE(__VALUE__) (((__VALUE__) == LL_SPI_MODE_MASTER) \

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85 || ((__VALUE__) == LL_SPI_MODE_SLAVE))

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86

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87 #define IS_LL_SPI_DATAWIDTH(__VALUE__) (((__VALUE__) == LL_SPI_DATAWIDTH_8BIT) \

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88 || ((__VALUE__) == LL_SPI_DATAWIDTH_16BIT))

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89

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90 #define IS_LL_SPI_POLARITY(__VALUE__) (((__VALUE__) == LL_SPI_POLARITY_LOW) \

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91 || ((__VALUE__) == LL_SPI_POLARITY_HIGH))

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92

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93 #define IS_LL_SPI_PHASE(__VALUE__) (((__VALUE__) == LL_SPI_PHASE_1EDGE) \

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94 || ((__VALUE__) == LL_SPI_PHASE_2EDGE))

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95

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96 #define IS_LL_SPI_NSS(__VALUE__) (((__VALUE__) == LL_SPI_NSS_SOFT) \

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97 || ((__VALUE__) == LL_SPI_NSS_HARD_INPUT) \

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98 || ((__VALUE__) == LL_SPI_NSS_HARD_OUTPUT))

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99

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100 #define IS_LL_SPI_BAUDRATE(__VALUE__) (((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV2) \

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101 || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV4) \

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102 || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV8) \

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103 || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV16) \

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104 || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV32) \

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105 || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV64) \

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106 || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV128) \

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107 || ((__VALUE__) == LL_SPI_BAUDRATEPRESCALER_DIV256))

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108

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109 #define IS_LL_SPI_BITORDER(__VALUE__) (((__VALUE__) == LL_SPI_LSB_FIRST) \

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110 || ((__VALUE__) == LL_SPI_MSB_FIRST))

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111

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112 #define IS_LL_SPI_CRCCALCULATION(__VALUE__) (((__VALUE__) == LL_SPI_CRCCALCULATION_ENABLE) \

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113 || ((__VALUE__) == LL_SPI_CRCCALCULATION_DISABLE))

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114

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115 #define IS_LL_SPI_CRC_POLYNOMIAL(__VALUE__) ((__VALUE__) >= 0x1U)

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116

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117 /**

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118 * @}

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119 */

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120

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121 /* Private function prototypes -----------------------------------------------*/

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122

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123 /* Exported functions --------------------------------------------------------*/

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124 /** @addtogroup SPI_LL_Exported_Functions

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125 * @{

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126 */

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127

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128 /** @addtogroup SPI_LL_EF_Init

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129 * @{

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130 */

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131

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132 /**

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133 * @brief De-initialize the SPI registers to their default reset values.

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134 * @param SPIx SPI Instance

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135 * @retval An ErrorStatus enumeration value:

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136 * - SUCCESS: SPI registers are de-initialized

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137 * - ERROR: SPI registers are not de-initialized

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138 */

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139 ErrorStatus LL_SPI_DeInit(SPI_TypeDef *SPIx)

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140 {

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141 ErrorStatus status = ERROR;

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142

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143 /* Check the parameters */

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144 assert_param(IS_SPI_ALL_INSTANCE(SPIx));

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145

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146 #if defined(SPI1)

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147 if (SPIx == SPI1)

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148 {

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149 /* Force reset of SPI clock */

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150 LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_SPI1);

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151

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152 /* Release reset of SPI clock */

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153 LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_SPI1);

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154

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155 status = SUCCESS;

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156 }

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157 #endif /* SPI1 */

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158 #if defined(SPI2)

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159 if (SPIx == SPI2)

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160 {

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161 /* Force reset of SPI clock */

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162 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_SPI2);

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163

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164 /* Release reset of SPI clock */

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165 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_SPI2);

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166

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167 status = SUCCESS;

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168 }

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169 #endif /* SPI2 */

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170 #if defined(SPI3)

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171 if (SPIx == SPI3)

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172 {

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173 /* Force reset of SPI clock */

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174 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_SPI3);

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175

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176 /* Release reset of SPI clock */

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177 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_SPI3);

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178

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179 status = SUCCESS;

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180 }

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181 #endif /* SPI3 */

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182 #if defined(SPI4)

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183 if (SPIx == SPI4)

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184 {

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185 /* Force reset of SPI clock */

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186 LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_SPI4);

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187

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188 /* Release reset of SPI clock */

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189 LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_SPI4);

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190

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191 status = SUCCESS;

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192 }

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193 #endif /* SPI4 */

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194 #if defined(SPI5)

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195 if (SPIx == SPI5)

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196 {

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197 /* Force reset of SPI clock */

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198 LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_SPI5);

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199

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200 /* Release reset of SPI clock */

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201 LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_SPI5);

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202

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203 status = SUCCESS;

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204 }

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205 #endif /* SPI5 */

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206 #if defined(SPI6)

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207 if (SPIx == SPI6)

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208 {

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209 /* Force reset of SPI clock */

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210 LL_APB2_GRP1_ForceReset(LL_APB2_GRP1_PERIPH_SPI6);

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211

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212 /* Release reset of SPI clock */

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213 LL_APB2_GRP1_ReleaseReset(LL_APB2_GRP1_PERIPH_SPI6);

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214

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215 status = SUCCESS;

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216 }

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217 #endif /* SPI6 */

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218

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219 return status;

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220 }

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221

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222 /**

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223 * @brief Initialize the SPI registers according to the specified parameters in SPI_InitStruct.

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224 * @note As some bits in SPI configuration registers can only be written when the SPI is disabled (SPI_CR1_SPE bit =0),

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225 * SPI IP should be in disabled state prior calling this function. Otherwise, ERROR result will be returned.

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226 * @param SPIx SPI Instance

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227 * @param SPI_InitStruct pointer to a @ref LL_SPI_InitTypeDef structure

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228 * @retval An ErrorStatus enumeration value. (Return always SUCCESS)

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229 */

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230 ErrorStatus LL_SPI_Init(SPI_TypeDef *SPIx, LL_SPI_InitTypeDef *SPI_InitStruct)

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231 {

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232 ErrorStatus status = ERROR;

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233

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234 /* Check the SPI Instance SPIx*/

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235 assert_param(IS_SPI_ALL_INSTANCE(SPIx));

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236

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237 /* Check the SPI parameters from SPI_InitStruct*/

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238 assert_param(IS_LL_SPI_TRANSFER_DIRECTION(SPI_InitStruct->TransferDirection));

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239 assert_param(IS_LL_SPI_MODE(SPI_InitStruct->Mode));

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240 assert_param(IS_LL_SPI_DATAWIDTH(SPI_InitStruct->DataWidth));

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241 assert_param(IS_LL_SPI_POLARITY(SPI_InitStruct->ClockPolarity));

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242 assert_param(IS_LL_SPI_PHASE(SPI_InitStruct->ClockPhase));

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243 assert_param(IS_LL_SPI_NSS(SPI_InitStruct->NSS));

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244 assert_param(IS_LL_SPI_BAUDRATE(SPI_InitStruct->BaudRate));

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245 assert_param(IS_LL_SPI_BITORDER(SPI_InitStruct->BitOrder));

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246 assert_param(IS_LL_SPI_CRCCALCULATION(SPI_InitStruct->CRCCalculation));

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247

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248 if (LL_SPI_IsEnabled(SPIx) == 0x00000000U)

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249 {

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250 /*---------------------------- SPIx CR1 Configuration ------------------------

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251 * Configure SPIx CR1 with parameters:

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252 * - TransferDirection: SPI_CR1_BIDIMODE, SPI_CR1_BIDIOE and SPI_CR1_RXONLY bits

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253 * - Master/Slave Mode: SPI_CR1_MSTR bit

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254 * - DataWidth: SPI_CR1_DFF bit

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255 * - ClockPolarity: SPI_CR1_CPOL bit

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256 * - ClockPhase: SPI_CR1_CPHA bit

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257 * - NSS management: SPI_CR1_SSM bit

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258 * - BaudRate prescaler: SPI_CR1_BR[2:0] bits

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259 * - BitOrder: SPI_CR1_LSBFIRST bit

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260 * - CRCCalculation: SPI_CR1_CRCEN bit

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261 */

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262 MODIFY_REG(SPIx->CR1,

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263 SPI_CR1_CLEAR_MASK,

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264 SPI_InitStruct->TransferDirection | SPI_InitStruct->Mode | SPI_InitStruct->DataWidth |

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265 SPI_InitStruct->ClockPolarity | SPI_InitStruct->ClockPhase |

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266 SPI_InitStruct->NSS | SPI_InitStruct->BaudRate |

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267 SPI_InitStruct->BitOrder | SPI_InitStruct->CRCCalculation);

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268

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269 /*---------------------------- SPIx CR2 Configuration ------------------------

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270 * Configure SPIx CR2 with parameters:

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271 * - NSS management: SSOE bit

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272 */

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273 MODIFY_REG(SPIx->CR2, SPI_CR2_SSOE, (SPI_InitStruct->NSS >> 16U));

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274

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275 /*---------------------------- SPIx CRCPR Configuration ----------------------

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276 * Configure SPIx CRCPR with parameters:

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277 * - CRCPoly: CRCPOLY[15:0] bits

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278 */

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279 if (SPI_InitStruct->CRCCalculation == LL_SPI_CRCCALCULATION_ENABLE)

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280 {

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281 assert_param(IS_LL_SPI_CRC_POLYNOMIAL(SPI_InitStruct->CRCPoly));

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282 LL_SPI_SetCRCPolynomial(SPIx, SPI_InitStruct->CRCPoly);

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283 }

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284 status = SUCCESS;

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285 }

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286

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287 /* Activate the SPI mode (Reset I2SMOD bit in I2SCFGR register) */

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288 CLEAR_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SMOD);

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289 return status;

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290 }

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291

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292 /**

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293 * @brief Set each @ref LL_SPI_InitTypeDef field to default value.

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294 * @param SPI_InitStruct pointer to a @ref LL_SPI_InitTypeDef structure

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295 * whose fields will be set to default values.

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296 * @retval None

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297 */

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298 void LL_SPI_StructInit(LL_SPI_InitTypeDef *SPI_InitStruct)

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299 {

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300 /* Set SPI_InitStruct fields to default values */

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301 SPI_InitStruct->TransferDirection = LL_SPI_FULL_DUPLEX;

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302 SPI_InitStruct->Mode = LL_SPI_MODE_SLAVE;

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303 SPI_InitStruct->DataWidth = LL_SPI_DATAWIDTH_8BIT;

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304 SPI_InitStruct->ClockPolarity = LL_SPI_POLARITY_LOW;

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305 SPI_InitStruct->ClockPhase = LL_SPI_PHASE_1EDGE;

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306 SPI_InitStruct->NSS = LL_SPI_NSS_HARD_INPUT;

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307 SPI_InitStruct->BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV2;

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308 SPI_InitStruct->BitOrder = LL_SPI_MSB_FIRST;

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309 SPI_InitStruct->CRCCalculation = LL_SPI_CRCCALCULATION_DISABLE;

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310 SPI_InitStruct->CRCPoly = 7U;

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311 }

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312

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313 /**

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314 * @}

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315 */

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316

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317 /**

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318 * @}

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319 */

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320

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321 /**

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322 * @}

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323 */

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324

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325 /** @addtogroup I2S_LL

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326 * @{

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327 */

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328

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329 /* Private types -------------------------------------------------------------*/

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330 /* Private variables ---------------------------------------------------------*/

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331 /* Private constants ---------------------------------------------------------*/

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332 /** @defgroup I2S_LL_Private_Constants I2S Private Constants

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333 * @{

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334 */

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335 /* I2S registers Masks */

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336 #define I2S_I2SCFGR_CLEAR_MASK (SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN | \

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337 SPI_I2SCFGR_CKPOL | SPI_I2SCFGR_I2SSTD | \

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338 SPI_I2SCFGR_I2SCFG | SPI_I2SCFGR_I2SMOD )

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339

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340 #define I2S_I2SPR_CLEAR_MASK 0x0002U

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341 /**

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342 * @}

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343 */

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344 /* Private macros ------------------------------------------------------------*/

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345 /** @defgroup I2S_LL_Private_Macros I2S Private Macros

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346 * @{

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347 */

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348

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349 #define IS_LL_I2S_DATAFORMAT(__VALUE__) (((__VALUE__) == LL_I2S_DATAFORMAT_16B) \

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350 || ((__VALUE__) == LL_I2S_DATAFORMAT_16B_EXTENDED) \

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351 || ((__VALUE__) == LL_I2S_DATAFORMAT_24B) \

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352 || ((__VALUE__) == LL_I2S_DATAFORMAT_32B))

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353

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354 #define IS_LL_I2S_CPOL(__VALUE__) (((__VALUE__) == LL_I2S_POLARITY_LOW) \

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355 || ((__VALUE__) == LL_I2S_POLARITY_HIGH))

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356

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357 #define IS_LL_I2S_STANDARD(__VALUE__) (((__VALUE__) == LL_I2S_STANDARD_PHILIPS) \

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358 || ((__VALUE__) == LL_I2S_STANDARD_MSB) \

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359 || ((__VALUE__) == LL_I2S_STANDARD_LSB) \

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360 || ((__VALUE__) == LL_I2S_STANDARD_PCM_SHORT) \

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361 || ((__VALUE__) == LL_I2S_STANDARD_PCM_LONG))

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362

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363 #define IS_LL_I2S_MODE(__VALUE__) (((__VALUE__) == LL_I2S_MODE_SLAVE_TX) \

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364 || ((__VALUE__) == LL_I2S_MODE_SLAVE_RX) \

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365 || ((__VALUE__) == LL_I2S_MODE_MASTER_TX) \

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366 || ((__VALUE__) == LL_I2S_MODE_MASTER_RX))

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367

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368 #define IS_LL_I2S_MCLK_OUTPUT(__VALUE__) (((__VALUE__) == LL_I2S_MCLK_OUTPUT_ENABLE) \

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369 || ((__VALUE__) == LL_I2S_MCLK_OUTPUT_DISABLE))

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370

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371 #define IS_LL_I2S_AUDIO_FREQ(__VALUE__) ((((__VALUE__) >= LL_I2S_AUDIOFREQ_8K) \

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372 && ((__VALUE__) <= LL_I2S_AUDIOFREQ_192K)) \

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373 || ((__VALUE__) == LL_I2S_AUDIOFREQ_DEFAULT))

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374

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375 #define IS_LL_I2S_PRESCALER_LINEAR(__VALUE__) ((__VALUE__) >= 0x2U)

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376

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377 #define IS_LL_I2S_PRESCALER_PARITY(__VALUE__) (((__VALUE__) == LL_I2S_PRESCALER_PARITY_EVEN) \

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378 || ((__VALUE__) == LL_I2S_PRESCALER_PARITY_ODD))

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379 /**

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380 * @}

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381 */

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382

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383 /* Private function prototypes -----------------------------------------------*/

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384

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385 /* Exported functions --------------------------------------------------------*/

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386 /** @addtogroup I2S_LL_Exported_Functions

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387 * @{

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388 */

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389

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390 /** @addtogroup I2S_LL_EF_Init

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391 * @{

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392 */

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393

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394 /**

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395 * @brief De-initialize the SPI/I2S registers to their default reset values.

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396 * @param SPIx SPI Instance

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397 * @retval An ErrorStatus enumeration value:

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398 * - SUCCESS: SPI registers are de-initialized

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399 * - ERROR: SPI registers are not de-initialized

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400 */

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401 ErrorStatus LL_I2S_DeInit(SPI_TypeDef *SPIx)

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402 {

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403 return LL_SPI_DeInit(SPIx);

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404 }

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405

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406 /**

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407 * @brief Initializes the SPI/I2S registers according to the specified parameters in I2S_InitStruct.

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408 * @note As some bits in SPI configuration registers can only be written when the SPI is disabled (SPI_CR1_SPE bit =0),

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409 * SPI IP should be in disabled state prior calling this function. Otherwise, ERROR result will be returned.

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410 * @param SPIx SPI Instance

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411 * @param I2S_InitStruct pointer to a @ref LL_I2S_InitTypeDef structure

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412 * @retval An ErrorStatus enumeration value:

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413 * - SUCCESS: SPI registers are Initialized

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414 * - ERROR: SPI registers are not Initialized

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415 */

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416 ErrorStatus LL_I2S_Init(SPI_TypeDef *SPIx, LL_I2S_InitTypeDef *I2S_InitStruct)

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417 {

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418 uint16_t i2sdiv = 2U, i2sodd = 0U, packetlength = 1U;

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419 uint32_t tmp = 0U;

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420 uint32_t sourceclock = 0U;

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421 ErrorStatus status = ERROR;

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422

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423 /* Check the I2S parameters */

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424 assert_param(IS_I2S_ALL_INSTANCE(SPIx));

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425 assert_param(IS_LL_I2S_MODE(I2S_InitStruct->Mode));

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426 assert_param(IS_LL_I2S_STANDARD(I2S_InitStruct->Standard));

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427 assert_param(IS_LL_I2S_DATAFORMAT(I2S_InitStruct->DataFormat));

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428 assert_param(IS_LL_I2S_MCLK_OUTPUT(I2S_InitStruct->MCLKOutput));

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429 assert_param(IS_LL_I2S_AUDIO_FREQ(I2S_InitStruct->AudioFreq));

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430 assert_param(IS_LL_I2S_CPOL(I2S_InitStruct->ClockPolarity));

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431

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432 if (LL_I2S_IsEnabled(SPIx) == 0x00000000U)

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433 {

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434 /*---------------------------- SPIx I2SCFGR Configuration --------------------

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435 * Configure SPIx I2SCFGR with parameters:

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436 * - Mode: SPI_I2SCFGR_I2SCFG[1:0] bit

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437 * - Standard: SPI_I2SCFGR_I2SSTD[1:0] and SPI_I2SCFGR_PCMSYNC bits

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438 * - DataFormat: SPI_I2SCFGR_CHLEN and SPI_I2SCFGR_DATLEN bits

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439 * - ClockPolarity: SPI_I2SCFGR_CKPOL bit

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440 */

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441

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442 /* Write to SPIx I2SCFGR */

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443 MODIFY_REG(SPIx->I2SCFGR,

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444 I2S_I2SCFGR_CLEAR_MASK,

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445 I2S_InitStruct->Mode | I2S_InitStruct->Standard |

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446 I2S_InitStruct->DataFormat | I2S_InitStruct->ClockPolarity |

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447 SPI_I2SCFGR_I2SMOD);

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448

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449 /*---------------------------- SPIx I2SPR Configuration ----------------------

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450 * Configure SPIx I2SPR with parameters:

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451 * - MCLKOutput: SPI_I2SPR_MCKOE bit

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452 * - AudioFreq: SPI_I2SPR_I2SDIV[7:0] and SPI_I2SPR_ODD bits

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453 */

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454

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455 /* If the requested audio frequency is not the default, compute the prescaler (i2sodd, i2sdiv)

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456 * else, default values are used: i2sodd = 0U, i2sdiv = 2U.

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457 */

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458 if (I2S_InitStruct->AudioFreq != LL_I2S_AUDIOFREQ_DEFAULT)

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459 {

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460 /* Check the frame length (For the Prescaler computing)

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461 * Default value: LL_I2S_DATAFORMAT_16B (packetlength = 1U).

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462 */

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463 if (I2S_InitStruct->DataFormat != LL_I2S_DATAFORMAT_16B)

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464 {

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465 /* Packet length is 32 bits */

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466 packetlength = 2U;

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467 }

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468

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469 /* If an external I2S clock has to be used, the specific define should be set

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470 in the project configuration or in the stm32f4xx_ll_rcc.h file */

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471 /* Get the I2S source clock value */

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472 sourceclock = LL_RCC_GetI2SClockFreq(LL_RCC_I2S1_CLKSOURCE);

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473

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474 /* Compute the Real divider depending on the MCLK output state with a floating point */

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475 if (I2S_InitStruct->MCLKOutput == LL_I2S_MCLK_OUTPUT_ENABLE)

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476 {

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477 /* MCLK output is enabled */

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478 tmp = (uint16_t)(((((sourceclock / 256U) * 10U) / I2S_InitStruct->AudioFreq)) + 5U);

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479 }

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480 else

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481 {

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482 /* MCLK output is disabled */

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483 tmp = (uint16_t)(((((sourceclock / (32U * packetlength)) * 10U) / I2S_InitStruct->AudioFreq)) + 5U);

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484 }

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485

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486 /* Remove the floating point */

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487 tmp = tmp / 10U;

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488

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489 /* Check the parity of the divider */

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490 i2sodd = (uint16_t)(tmp & (uint16_t)0x0001U);

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491

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492 /* Compute the i2sdiv prescaler */

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493 i2sdiv = (uint16_t)((tmp - i2sodd) / 2U);

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494

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495 /* Get the Mask for the Odd bit (SPI_I2SPR[8]) register */

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496 i2sodd = (uint16_t)(i2sodd << 8U);

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497 }

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498

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499 /* Test if the divider is 1 or 0 or greater than 0xFF */

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500 if ((i2sdiv < 2U) || (i2sdiv > 0xFFU))

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501 {

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502 /* Set the default values */

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503 i2sdiv = 2U;

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504 i2sodd = 0U;

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505 }

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506

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507 /* Write to SPIx I2SPR register the computed value */

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508 WRITE_REG(SPIx->I2SPR, i2sdiv | i2sodd | I2S_InitStruct->MCLKOutput);

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509

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510 status = SUCCESS;

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511 }

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512 return status;

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513 }

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514

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515 /**

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516 * @brief Set each @ref LL_I2S_InitTypeDef field to default value.

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517 * @param I2S_InitStruct pointer to a @ref LL_I2S_InitTypeDef structure

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518 * whose fields will be set to default values.

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519 * @retval None

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520 */

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521 void LL_I2S_StructInit(LL_I2S_InitTypeDef *I2S_InitStruct)

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522 {

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523 /*--------------- Reset I2S init structure parameters values -----------------*/

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524 I2S_InitStruct->Mode = LL_I2S_MODE_SLAVE_TX;

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525 I2S_InitStruct->Standard = LL_I2S_STANDARD_PHILIPS;

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526 I2S_InitStruct->DataFormat = LL_I2S_DATAFORMAT_16B;

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527 I2S_InitStruct->MCLKOutput = LL_I2S_MCLK_OUTPUT_DISABLE;

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528 I2S_InitStruct->AudioFreq = LL_I2S_AUDIOFREQ_DEFAULT;

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529 I2S_InitStruct->ClockPolarity = LL_I2S_POLARITY_LOW;

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530 }

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531

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532 /**

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533 * @brief Set linear and parity prescaler.

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534 * @note To calculate value of PrescalerLinear(I2SDIV[7:0] bits) and PrescalerParity(ODD bit)\n

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535 * Check Audio frequency table and formulas inside Reference Manual (SPI/I2S).

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536 * @param SPIx SPI Instance

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537 * @param PrescalerLinear value Min_Data=0x02 and Max_Data=0xFF.

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538 * @param PrescalerParity This parameter can be one of the following values:

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539 * @arg @ref LL_I2S_PRESCALER_PARITY_EVEN

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540 * @arg @ref LL_I2S_PRESCALER_PARITY_ODD

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541 * @retval None

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542 */

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543 void LL_I2S_ConfigPrescaler(SPI_TypeDef *SPIx, uint32_t PrescalerLinear, uint32_t PrescalerParity)

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544 {

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545 /* Check the I2S parameters */

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546 assert_param(IS_I2S_ALL_INSTANCE(SPIx));

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547 assert_param(IS_LL_I2S_PRESCALER_LINEAR(PrescalerLinear));

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548 assert_param(IS_LL_I2S_PRESCALER_PARITY(PrescalerParity));

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549

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550 /* Write to SPIx I2SPR */

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551 MODIFY_REG(SPIx->I2SPR, SPI_I2SPR_I2SDIV | SPI_I2SPR_ODD, PrescalerLinear | (PrescalerParity << 8U));

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552 }

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553

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554 #if defined (SPI_I2S_FULLDUPLEX_SUPPORT)

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555 /**

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556 * @brief Configures the full duplex mode for the I2Sx peripheral using its extension

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557 * I2Sxext according to the specified parameters in the I2S_InitStruct.

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558 * @note The structure pointed by I2S_InitStruct parameter should be the same

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559 * used for the master I2S peripheral. In this case, if the master is

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560 * configured as transmitter, the slave will be receiver and vice versa.

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561 * Or you can force a different mode by modifying the field I2S_Mode to the

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562 * value I2S_SlaveRx or I2S_SlaveTx independently of the master configuration.

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563 * @param I2Sxext SPI Instance

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564 * @param I2S_InitStruct pointer to a @ref LL_I2S_InitTypeDef structure

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565 * @retval An ErrorStatus enumeration value:

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566 * - SUCCESS: I2Sxext registers are Initialized

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567 * - ERROR: I2Sxext registers are not Initialized

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568 */

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569 ErrorStatus LL_I2S_InitFullDuplex(SPI_TypeDef *I2Sxext, LL_I2S_InitTypeDef *I2S_InitStruct)

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570 {

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571 uint16_t mode = 0U;

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572 ErrorStatus status = ERROR;

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573

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574 /* Check the I2S parameters */

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575 assert_param(IS_I2S_EXT_ALL_INSTANCE(I2Sxext));

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576 assert_param(IS_LL_I2S_MODE(I2S_InitStruct->Mode));

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577 assert_param(IS_LL_I2S_STANDARD(I2S_InitStruct->Standard));

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578 assert_param(IS_LL_I2S_DATAFORMAT(I2S_InitStruct->DataFormat));

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579 assert_param(IS_LL_I2S_CPOL(I2S_InitStruct->ClockPolarity));

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580

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581 if (LL_I2S_IsEnabled(I2Sxext) == 0x00000000U)

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582 {

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583 /*---------------------------- SPIx I2SCFGR Configuration --------------------

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584 * Configure SPIx I2SCFGR with parameters:

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585 * - Mode: SPI_I2SCFGR_I2SCFG[1:0] bit

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586 * - Standard: SPI_I2SCFGR_I2SSTD[1:0] and SPI_I2SCFGR_PCMSYNC bits

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587 * - DataFormat: SPI_I2SCFGR_CHLEN and SPI_I2SCFGR_DATLEN bits

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588 * - ClockPolarity: SPI_I2SCFGR_CKPOL bit

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589 */

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590

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591 /* Reset I2SPR registers */

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592 WRITE_REG(I2Sxext->I2SPR, I2S_I2SPR_CLEAR_MASK);

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593

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594 /* Get the mode to be configured for the extended I2S */

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595 if ((I2S_InitStruct->Mode == LL_I2S_MODE_MASTER_TX) || (I2S_InitStruct->Mode == LL_I2S_MODE_SLAVE_TX))

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596 {

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597 mode = LL_I2S_MODE_SLAVE_RX;

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598 }

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599 else

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600 {

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601 if ((I2S_InitStruct->Mode == LL_I2S_MODE_MASTER_RX) || (I2S_InitStruct->Mode == LL_I2S_MODE_SLAVE_RX))

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602 {

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603 mode = LL_I2S_MODE_SLAVE_TX;

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604 }

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605 }

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606

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607 /* Write to SPIx I2SCFGR */

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608 MODIFY_REG(I2Sxext->I2SCFGR,

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609 I2S_I2SCFGR_CLEAR_MASK,

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610 I2S_InitStruct->Standard |

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611 I2S_InitStruct->DataFormat | I2S_InitStruct->ClockPolarity |

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612 SPI_I2SCFGR_I2SMOD | mode);

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613

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614 status = SUCCESS;

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615 }

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616 return status;

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617 }

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618 #endif /* SPI_I2S_FULLDUPLEX_SUPPORT */

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619

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620 /**

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621 * @}

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622 */

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623

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624 /**

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625 * @}

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626 */

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627

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628 /**

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629 * @}

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630 */

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631

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632 #endif /* defined (SPI1) || defined (SPI2) || defined (SPI3) || defined (SPI4) || defined (SPI5) || defined(SPI6) */

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633

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634 /**

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635 * @}

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636 */

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637

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638 #endif /* USE_FULL_LL_DRIVER */

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639

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640 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

Mercurial > public > ostc4

annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_spi.c @ 974:53900dfe335b Evo_2_23