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diff Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_wwdg.h @ 128:c78bcbd5deda FlipDisplay
Added current STM32 standandard libraries in version independend folder structure
author | Ideenmodellierer |
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date | Sun, 17 Feb 2019 21:12:22 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_wwdg.h Sun Feb 17 21:12:22 2019 +0100 @@ -0,0 +1,340 @@ +/** + ****************************************************************************** + * @file stm32f4xx_ll_wwdg.h + * @author MCD Application Team + * @brief Header file of WWDG LL module. + ****************************************************************************** + * @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. + * + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef __STM32F4xx_LL_WWDG_H +#define __STM32F4xx_LL_WWDG_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f4xx.h" + +/** @addtogroup STM32F4xx_LL_Driver + * @{ + */ + +#if defined (WWDG) + +/** @defgroup WWDG_LL WWDG + * @{ + */ + +/* Private types -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ + +/* Private constants ---------------------------------------------------------*/ + +/* Private macros ------------------------------------------------------------*/ + +/* Exported types ------------------------------------------------------------*/ +/* Exported constants --------------------------------------------------------*/ +/** @defgroup WWDG_LL_Exported_Constants WWDG Exported Constants + * @{ + */ + + +/** @defgroup WWDG_LL_EC_IT IT Defines + * @brief IT defines which can be used with LL_WWDG_ReadReg and LL_WWDG_WriteReg functions + * @{ + */ +#define LL_WWDG_CFR_EWI WWDG_CFR_EWI +/** + * @} + */ + +/** @defgroup WWDG_LL_EC_PRESCALER PRESCALER +* @{ +*/ +#define LL_WWDG_PRESCALER_1 (uint32_t)0x00000000U /*!< WWDG counter clock = (PCLK1/4096)/1 */ +#define LL_WWDG_PRESCALER_2 WWDG_CFR_WDGTB_0 /*!< WWDG counter clock = (PCLK1/4096)/2 */ +#define LL_WWDG_PRESCALER_4 WWDG_CFR_WDGTB_1 /*!< WWDG counter clock = (PCLK1/4096)/4 */ +#define LL_WWDG_PRESCALER_8 (WWDG_CFR_WDGTB_0 | WWDG_CFR_WDGTB_1) /*!< WWDG counter clock = (PCLK1/4096)/8 */ +/** + * @} + */ + +/** + * @} + */ + +/* Exported macro ------------------------------------------------------------*/ +/** @defgroup WWDG_LL_Exported_Macros WWDG Exported Macros + * @{ + */ +/** @defgroup WWDG_LL_EM_WRITE_READ Common Write and read registers macros + * @{ + */ +/** + * @brief Write a value in WWDG register + * @param __INSTANCE__ WWDG Instance + * @param __REG__ Register to be written + * @param __VALUE__ Value to be written in the register + * @retval None + */ +#define LL_WWDG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__)) + +/** + * @brief Read a value in WWDG register + * @param __INSTANCE__ WWDG Instance + * @param __REG__ Register to be read + * @retval Register value + */ +#define LL_WWDG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__) +/** + * @} + */ + + +/** + * @} + */ + +/* Exported functions --------------------------------------------------------*/ +/** @defgroup WWDG_LL_Exported_Functions WWDG Exported Functions + * @{ + */ + +/** @defgroup WWDG_LL_EF_Configuration Configuration + * @{ + */ +/** + * @brief Enable Window Watchdog. The watchdog is always disabled after a reset. + * @note It is enabled by setting the WDGA bit in the WWDG_CR register, + * then it cannot be disabled again except by a reset. + * This bit is set by software and only cleared by hardware after a reset. + * When WDGA = 1, the watchdog can generate a reset. + * @rmtoll CR WDGA LL_WWDG_Enable + * @param WWDGx WWDG Instance + * @retval None + */ +__STATIC_INLINE void LL_WWDG_Enable(WWDG_TypeDef *WWDGx) +{ + SET_BIT(WWDGx->CR, WWDG_CR_WDGA); +} + +/** + * @brief Checks if Window Watchdog is enabled + * @rmtoll CR WDGA LL_WWDG_IsEnabled + * @param WWDGx WWDG Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_WWDG_IsEnabled(WWDG_TypeDef *WWDGx) +{ + return (READ_BIT(WWDGx->CR, WWDG_CR_WDGA) == (WWDG_CR_WDGA)); +} + +/** + * @brief Set the Watchdog counter value to provided value (7-bits T[6:0]) + * @note When writing to the WWDG_CR register, always write 1 in the MSB b6 to avoid generating an immediate reset + * This counter is decremented every (4096 x 2expWDGTB) PCLK cycles + * A reset is produced when it rolls over from 0x40 to 0x3F (bit T6 becomes cleared) + * Setting the counter lower then 0x40 causes an immediate reset (if WWDG enabled) + * @rmtoll CR T LL_WWDG_SetCounter + * @param WWDGx WWDG Instance + * @param Counter 0..0x7F (7 bit counter value) + * @retval None + */ +__STATIC_INLINE void LL_WWDG_SetCounter(WWDG_TypeDef *WWDGx, uint32_t Counter) +{ + MODIFY_REG(WWDGx->CR, WWDG_CR_T, Counter); +} + +/** + * @brief Return current Watchdog Counter Value (7 bits counter value) + * @rmtoll CR T LL_WWDG_GetCounter + * @param WWDGx WWDG Instance + * @retval 7 bit Watchdog Counter value + */ +__STATIC_INLINE uint32_t LL_WWDG_GetCounter(WWDG_TypeDef *WWDGx) +{ + return (uint32_t)(READ_BIT(WWDGx->CR, WWDG_CR_T)); +} + +/** + * @brief Set the time base of the prescaler (WDGTB). + * @note Prescaler is used to apply ratio on PCLK clock, so that Watchdog counter + * is decremented every (4096 x 2expWDGTB) PCLK cycles + * @rmtoll CFR WDGTB LL_WWDG_SetPrescaler + * @param WWDGx WWDG Instance + * @param Prescaler This parameter can be one of the following values: + * @arg @ref LL_WWDG_PRESCALER_1 + * @arg @ref LL_WWDG_PRESCALER_2 + * @arg @ref LL_WWDG_PRESCALER_4 + * @arg @ref LL_WWDG_PRESCALER_8 + * @retval None + */ +__STATIC_INLINE void LL_WWDG_SetPrescaler(WWDG_TypeDef *WWDGx, uint32_t Prescaler) +{ + MODIFY_REG(WWDGx->CFR, WWDG_CFR_WDGTB, Prescaler); +} + +/** + * @brief Return current Watchdog Prescaler Value + * @rmtoll CFR WDGTB LL_WWDG_GetPrescaler + * @param WWDGx WWDG Instance + * @retval Returned value can be one of the following values: + * @arg @ref LL_WWDG_PRESCALER_1 + * @arg @ref LL_WWDG_PRESCALER_2 + * @arg @ref LL_WWDG_PRESCALER_4 + * @arg @ref LL_WWDG_PRESCALER_8 + */ +__STATIC_INLINE uint32_t LL_WWDG_GetPrescaler(WWDG_TypeDef *WWDGx) +{ + return (uint32_t)(READ_BIT(WWDGx->CFR, WWDG_CFR_WDGTB)); +} + +/** + * @brief Set the Watchdog Window value to be compared to the downcounter (7-bits W[6:0]). + * @note This window value defines when write in the WWDG_CR register + * to program Watchdog counter is allowed. + * Watchdog counter value update must occur only when the counter value + * is lower than the Watchdog window register value. + * Otherwise, a MCU reset is generated if the 7-bit Watchdog counter value + * (in the control register) is refreshed before the downcounter has reached + * the watchdog window register value. + * Physically is possible to set the Window lower then 0x40 but it is not recommended. + * To generate an immediate reset, it is possible to set the Counter lower than 0x40. + * @rmtoll CFR W LL_WWDG_SetWindow + * @param WWDGx WWDG Instance + * @param Window 0x00..0x7F (7 bit Window value) + * @retval None + */ +__STATIC_INLINE void LL_WWDG_SetWindow(WWDG_TypeDef *WWDGx, uint32_t Window) +{ + MODIFY_REG(WWDGx->CFR, WWDG_CFR_W, Window); +} + +/** + * @brief Return current Watchdog Window Value (7 bits value) + * @rmtoll CFR W LL_WWDG_GetWindow + * @param WWDGx WWDG Instance + * @retval 7 bit Watchdog Window value + */ +__STATIC_INLINE uint32_t LL_WWDG_GetWindow(WWDG_TypeDef *WWDGx) +{ + return (uint32_t)(READ_BIT(WWDGx->CFR, WWDG_CFR_W)); +} + +/** + * @} + */ + +/** @defgroup WWDG_LL_EF_FLAG_Management FLAG_Management + * @{ + */ +/** + * @brief Indicates if the WWDG Early Wakeup Interrupt Flag is set or not. + * @note This bit is set by hardware when the counter has reached the value 0x40. + * It must be cleared by software by writing 0. + * A write of 1 has no effect. This bit is also set if the interrupt is not enabled. + * @rmtoll SR EWIF LL_WWDG_IsActiveFlag_EWKUP + * @param WWDGx WWDG Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_WWDG_IsActiveFlag_EWKUP(WWDG_TypeDef *WWDGx) +{ + return (READ_BIT(WWDGx->SR, WWDG_SR_EWIF) == (WWDG_SR_EWIF)); +} + +/** + * @brief Clear WWDG Early Wakeup Interrupt Flag (EWIF) + * @rmtoll SR EWIF LL_WWDG_ClearFlag_EWKUP + * @param WWDGx WWDG Instance + * @retval None + */ +__STATIC_INLINE void LL_WWDG_ClearFlag_EWKUP(WWDG_TypeDef *WWDGx) +{ + WRITE_REG(WWDGx->SR, ~WWDG_SR_EWIF); +} + +/** + * @} + */ + +/** @defgroup WWDG_LL_EF_IT_Management IT_Management + * @{ + */ +/** + * @brief Enable the Early Wakeup Interrupt. + * @note When set, an interrupt occurs whenever the counter reaches value 0x40. + * This interrupt is only cleared by hardware after a reset + * @rmtoll CFR EWI LL_WWDG_EnableIT_EWKUP + * @param WWDGx WWDG Instance + * @retval None + */ +__STATIC_INLINE void LL_WWDG_EnableIT_EWKUP(WWDG_TypeDef *WWDGx) +{ + SET_BIT(WWDGx->CFR, WWDG_CFR_EWI); +} + +/** + * @brief Check if Early Wakeup Interrupt is enabled + * @rmtoll CFR EWI LL_WWDG_IsEnabledIT_EWKUP + * @param WWDGx WWDG Instance + * @retval State of bit (1 or 0). + */ +__STATIC_INLINE uint32_t LL_WWDG_IsEnabledIT_EWKUP(WWDG_TypeDef *WWDGx) +{ + return (READ_BIT(WWDGx->CFR, WWDG_CFR_EWI) == (WWDG_CFR_EWI)); +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +#endif /* WWDG */ + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif /* __STM32F4xx_LL_WWDG_H */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/