Mercurial > public > ostc4
view Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_lptim.c @ 372:75eedde05ff6 MotionDetection
merged default into MotionDetection
author | Ideenmodellierer |
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date | Mon, 19 Aug 2019 17:50:55 +0200 |
parents | c78bcbd5deda |
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/** ****************************************************************************** * @file stm32f4xx_ll_lptim.c * @author MCD Application Team * @brief LPTIM LL module driver. ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ #if defined(USE_FULL_LL_DRIVER) /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx_ll_lptim.h" #include "stm32f4xx_ll_bus.h" #ifdef USE_FULL_ASSERT #include "stm32_assert.h" #else #define assert_param(expr) ((void)0U) #endif /** @addtogroup STM32F4xx_LL_Driver * @{ */ #if defined (LPTIM1) || defined (LPTIM2) /** @addtogroup LPTIM_LL * @{ */ /* Private types -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private constants ---------------------------------------------------------*/ /* Private macros ------------------------------------------------------------*/ /** @addtogroup LPTIM_LL_Private_Macros * @{ */ #define IS_LPTIM_CLOCK_SOURCE(__VALUE__) (((__VALUE__) == LL_LPTIM_CLK_SOURCE_INTERNAL) \ || ((__VALUE__) == LL_LPTIM_CLK_SOURCE_EXTERNAL)) #define IS_LPTIM_CLOCK_PRESCALER(__VALUE__) (((__VALUE__) == LL_LPTIM_PRESCALER_DIV1) \ || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV2) \ || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV4) \ || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV8) \ || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV16) \ || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV32) \ || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV64) \ || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV128)) #define IS_LPTIM_WAVEFORM(__VALUE__) (((__VALUE__) == LL_LPTIM_OUTPUT_WAVEFORM_PWM) \ || ((__VALUE__) == LL_LPTIM_OUTPUT_WAVEFORM_SETONCE)) #define IS_LPTIM_OUTPUT_POLARITY(__VALUE__) (((__VALUE__) == LL_LPTIM_OUTPUT_POLARITY_REGULAR) \ || ((__VALUE__) == LL_LPTIM_OUTPUT_POLARITY_INVERSE)) /** * @} */ /* Private function prototypes -----------------------------------------------*/ /* Exported functions --------------------------------------------------------*/ /** @addtogroup LPTIM_LL_Exported_Functions * @{ */ /** @addtogroup LPTIM_LL_EF_Init * @{ */ /** * @brief Set LPTIMx registers to their reset values. * @param LPTIMx LP Timer instance * @retval An ErrorStatus enumeration value: * - SUCCESS: LPTIMx registers are de-initialized * - ERROR: invalid LPTIMx instance */ ErrorStatus LL_LPTIM_DeInit(LPTIM_TypeDef* LPTIMx) { ErrorStatus result = SUCCESS; /* Check the parameters */ assert_param(IS_LPTIM_INSTANCE(LPTIMx)); if (LPTIMx == LPTIM1) { LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_LPTIM1); LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_LPTIM1); } #if defined(LPTIM2) else if (LPTIMx == LPTIM2) { LL_APB1_GRP2_ForceReset(LL_APB1_GRP2_PERIPH_LPTIM2); LL_APB1_GRP2_ReleaseReset(LL_APB1_GRP2_PERIPH_LPTIM2); } #endif else { result = ERROR; } return result; } /** * @brief Set each fields of the LPTIM_InitStruct structure to its default * value. * @param LPTIM_InitStruct pointer to a @ref LL_LPTIM_InitTypeDef structure * @retval None */ void LL_LPTIM_StructInit(LL_LPTIM_InitTypeDef* LPTIM_InitStruct) { /* Set the default configuration */ LPTIM_InitStruct->ClockSource = LL_LPTIM_CLK_SOURCE_INTERNAL; LPTIM_InitStruct->Prescaler = LL_LPTIM_PRESCALER_DIV1; LPTIM_InitStruct->Waveform = LL_LPTIM_OUTPUT_WAVEFORM_PWM; LPTIM_InitStruct->Polarity = LL_LPTIM_OUTPUT_POLARITY_REGULAR; } /** * @brief Configure the LPTIMx peripheral according to the specified parameters. * @note LL_LPTIM_Init can only be called when the LPTIM instance is disabled. * @note LPTIMx can be disabled using unitary function @ref LL_LPTIM_Disable(). * @param LPTIMx LP Timer Instance * @param LPTIM_InitStruct pointer to a @ref LL_LPTIM_InitTypeDef structure * @retval An ErrorStatus enumeration value: * - SUCCESS: LPTIMx instance has been initialized * - ERROR: LPTIMx instance hasn't been initialized */ ErrorStatus LL_LPTIM_Init(LPTIM_TypeDef * LPTIMx, LL_LPTIM_InitTypeDef* LPTIM_InitStruct) { ErrorStatus result = SUCCESS; /* The LPTIMx_CFGR register must only be modified when the LPTIM is disabled (ENABLE bit is reset to 0). */ if (LL_LPTIM_IsEnabled(LPTIMx)) { result = ERROR; } else { /* Check the parameters */ assert_param(IS_LPTIM_INSTANCE(LPTIMx)); assert_param(IS_LPTIM_CLOCK_SOURCE(LPTIM_InitStruct->ClockSource)); assert_param(IS_LPTIM_CLOCK_PRESCALER(LPTIM_InitStruct->Prescaler)); assert_param(IS_LPTIM_WAVEFORM(LPTIM_InitStruct->Waveform)); assert_param(IS_LPTIM_OUTPUT_POLARITY(LPTIM_InitStruct->Polarity)); /* Set CKSEL bitfield according to ClockSource value */ /* Set PRESC bitfield according to Prescaler value */ /* Set WAVE bitfield according to Waveform value */ /* Set WAVEPOL bitfield according to Polarity value */ MODIFY_REG(LPTIMx->CFGR, (LPTIM_CFGR_CKSEL | LPTIM_CFGR_PRESC | LPTIM_CFGR_WAVE| LPTIM_CFGR_WAVPOL), LPTIM_InitStruct->ClockSource | \ LPTIM_InitStruct->Prescaler | \ LPTIM_InitStruct->Waveform | \ LPTIM_InitStruct->Polarity); } return result; } /** * @} */ /** * @} */ /** * @} */ #endif /* defined (LPTIM1) || defined (LPTIM2) */ /** * @} */ #endif /* USE_FULL_LL_DRIVER */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/