diff options
Diffstat (limited to 'bsps/arm/stm32h7/include/stm32h7xx_ll_iwdg.h')
| -rw-r--r-- | bsps/arm/stm32h7/include/stm32h7xx_ll_iwdg.h | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/bsps/arm/stm32h7/include/stm32h7xx_ll_iwdg.h b/bsps/arm/stm32h7/include/stm32h7xx_ll_iwdg.h new file mode 100644 index 0000000000..8a8e2a138a --- /dev/null +++ b/bsps/arm/stm32h7/include/stm32h7xx_ll_iwdg.h @@ -0,0 +1,342 @@ +/**
+ ******************************************************************************
+ * @file stm32h7xx_ll_iwdg.h
+ * @author MCD Application Team
+ * @brief Header file of IWDG LL module.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© Copyright (c) 2017 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef STM32H7xx_LL_IWDG_H
+#define STM32H7xx_LL_IWDG_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32h7xx.h"
+
+/** @addtogroup STM32H7xx_LL_Driver
+ * @{
+ */
+
+#if defined(IWDG1) || defined(IWDG2)
+
+/** @defgroup IWDG_LL IWDG
+ * @{
+ */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+
+/* Private constants ---------------------------------------------------------*/
+/** @defgroup IWDG_LL_Private_Constants IWDG Private Constants
+ * @{
+ */
+#define LL_IWDG_KEY_RELOAD 0x0000AAAAU /*!< IWDG Reload Counter Enable */
+#define LL_IWDG_KEY_ENABLE 0x0000CCCCU /*!< IWDG Peripheral Enable */
+#define LL_IWDG_KEY_WR_ACCESS_ENABLE 0x00005555U /*!< IWDG KR Write Access Enable */
+#define LL_IWDG_KEY_WR_ACCESS_DISABLE 0x00000000U /*!< IWDG KR Write Access Disable */
+/**
+ * @}
+ */
+
+/* Private macros ------------------------------------------------------------*/
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+/** @defgroup IWDG_LL_Exported_Constants IWDG Exported Constants
+ * @{
+ */
+
+/** @defgroup IWDG_LL_EC_GET_FLAG Get Flags Defines
+ * @brief Flags defines which can be used with LL_IWDG_ReadReg function
+ * @{
+ */
+#define LL_IWDG_SR_PVU IWDG_SR_PVU /*!< Watchdog prescaler value update */
+#define LL_IWDG_SR_RVU IWDG_SR_RVU /*!< Watchdog counter reload value update */
+#define LL_IWDG_SR_WVU IWDG_SR_WVU /*!< Watchdog counter window value update */
+/**
+ * @}
+ */
+
+/** @defgroup IWDG_LL_EC_PRESCALER Prescaler Divider
+ * @{
+ */
+#define LL_IWDG_PRESCALER_4 0x00000000U /*!< Divider by 4 */
+#define LL_IWDG_PRESCALER_8 (IWDG_PR_PR_0) /*!< Divider by 8 */
+#define LL_IWDG_PRESCALER_16 (IWDG_PR_PR_1) /*!< Divider by 16 */
+#define LL_IWDG_PRESCALER_32 (IWDG_PR_PR_1 | IWDG_PR_PR_0) /*!< Divider by 32 */
+#define LL_IWDG_PRESCALER_64 (IWDG_PR_PR_2) /*!< Divider by 64 */
+#define LL_IWDG_PRESCALER_128 (IWDG_PR_PR_2 | IWDG_PR_PR_0) /*!< Divider by 128 */
+#define LL_IWDG_PRESCALER_256 (IWDG_PR_PR_2 | IWDG_PR_PR_1) /*!< Divider by 256 */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/* Exported macro ------------------------------------------------------------*/
+/** @defgroup IWDG_LL_Exported_Macros IWDG Exported Macros
+ * @{
+ */
+
+/** @defgroup IWDG_LL_EM_WRITE_READ Common Write and read registers Macros
+ * @{
+ */
+
+/**
+ * @brief Write a value in IWDG register
+ * @param __INSTANCE__ IWDG Instance
+ * @param __REG__ Register to be written
+ * @param __VALUE__ Value to be written in the register
+ * @retval None
+ */
+#define LL_IWDG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
+
+/**
+ * @brief Read a value in IWDG register
+ * @param __INSTANCE__ IWDG Instance
+ * @param __REG__ Register to be read
+ * @retval Register value
+ */
+#define LL_IWDG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+
+/* Exported functions --------------------------------------------------------*/
+/** @defgroup IWDG_LL_Exported_Functions IWDG Exported Functions
+ * @{
+ */
+/** @defgroup IWDG_LL_EF_Configuration Configuration
+ * @{
+ */
+
+/**
+ * @brief Start the Independent Watchdog
+ * @note Except if the hardware watchdog option is selected
+ * @rmtoll KR KEY LL_IWDG_Enable
+ * @param IWDGx IWDG Instance
+ * @retval None
+ */
+__STATIC_INLINE void LL_IWDG_Enable(IWDG_TypeDef *IWDGx)
+{
+ WRITE_REG(IWDGx->KR, LL_IWDG_KEY_ENABLE);
+}
+
+/**
+ * @brief Reloads IWDG counter with value defined in the reload register
+ * @rmtoll KR KEY LL_IWDG_ReloadCounter
+ * @param IWDGx IWDG Instance
+ * @retval None
+ */
+__STATIC_INLINE void LL_IWDG_ReloadCounter(IWDG_TypeDef *IWDGx)
+{
+ WRITE_REG(IWDGx->KR, LL_IWDG_KEY_RELOAD);
+}
+
+/**
+ * @brief Enable write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers
+ * @rmtoll KR KEY LL_IWDG_EnableWriteAccess
+ * @param IWDGx IWDG Instance
+ * @retval None
+ */
+__STATIC_INLINE void LL_IWDG_EnableWriteAccess(IWDG_TypeDef *IWDGx)
+{
+ WRITE_REG(IWDGx->KR, LL_IWDG_KEY_WR_ACCESS_ENABLE);
+}
+
+/**
+ * @brief Disable write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers
+ * @rmtoll KR KEY LL_IWDG_DisableWriteAccess
+ * @param IWDGx IWDG Instance
+ * @retval None
+ */
+__STATIC_INLINE void LL_IWDG_DisableWriteAccess(IWDG_TypeDef *IWDGx)
+{
+ WRITE_REG(IWDGx->KR, LL_IWDG_KEY_WR_ACCESS_DISABLE);
+}
+
+/**
+ * @brief Select the prescaler of the IWDG
+ * @rmtoll PR PR LL_IWDG_SetPrescaler
+ * @param IWDGx IWDG Instance
+ * @param Prescaler This parameter can be one of the following values:
+ * @arg @ref LL_IWDG_PRESCALER_4
+ * @arg @ref LL_IWDG_PRESCALER_8
+ * @arg @ref LL_IWDG_PRESCALER_16
+ * @arg @ref LL_IWDG_PRESCALER_32
+ * @arg @ref LL_IWDG_PRESCALER_64
+ * @arg @ref LL_IWDG_PRESCALER_128
+ * @arg @ref LL_IWDG_PRESCALER_256
+ * @retval None
+ */
+__STATIC_INLINE void LL_IWDG_SetPrescaler(IWDG_TypeDef *IWDGx, uint32_t Prescaler)
+{
+ WRITE_REG(IWDGx->PR, IWDG_PR_PR & Prescaler);
+}
+
+/**
+ * @brief Get the selected prescaler of the IWDG
+ * @rmtoll PR PR LL_IWDG_GetPrescaler
+ * @param IWDGx IWDG Instance
+ * @retval Returned value can be one of the following values:
+ * @arg @ref LL_IWDG_PRESCALER_4
+ * @arg @ref LL_IWDG_PRESCALER_8
+ * @arg @ref LL_IWDG_PRESCALER_16
+ * @arg @ref LL_IWDG_PRESCALER_32
+ * @arg @ref LL_IWDG_PRESCALER_64
+ * @arg @ref LL_IWDG_PRESCALER_128
+ * @arg @ref LL_IWDG_PRESCALER_256
+ */
+__STATIC_INLINE uint32_t LL_IWDG_GetPrescaler(IWDG_TypeDef *IWDGx)
+{
+ return (READ_REG(IWDGx->PR));
+}
+
+/**
+ * @brief Specify the IWDG down-counter reload value
+ * @rmtoll RLR RL LL_IWDG_SetReloadCounter
+ * @param IWDGx IWDG Instance
+ * @param Counter Value between Min_Data=0 and Max_Data=0x0FFF
+ * @retval None
+ */
+__STATIC_INLINE void LL_IWDG_SetReloadCounter(IWDG_TypeDef *IWDGx, uint32_t Counter)
+{
+ WRITE_REG(IWDGx->RLR, IWDG_RLR_RL & Counter);
+}
+
+/**
+ * @brief Get the specified IWDG down-counter reload value
+ * @rmtoll RLR RL LL_IWDG_GetReloadCounter
+ * @param IWDGx IWDG Instance
+ * @retval Value between Min_Data=0 and Max_Data=0x0FFF
+ */
+__STATIC_INLINE uint32_t LL_IWDG_GetReloadCounter(IWDG_TypeDef *IWDGx)
+{
+ return (READ_REG(IWDGx->RLR));
+}
+
+/**
+ * @brief Specify high limit of the window value to be compared to the down-counter.
+ * @rmtoll WINR WIN LL_IWDG_SetWindow
+ * @param IWDGx IWDG Instance
+ * @param Window Value between Min_Data=0 and Max_Data=0x0FFF
+ * @retval None
+ */
+__STATIC_INLINE void LL_IWDG_SetWindow(IWDG_TypeDef *IWDGx, uint32_t Window)
+{
+ WRITE_REG(IWDGx->WINR, IWDG_WINR_WIN & Window);
+}
+
+/**
+ * @brief Get the high limit of the window value specified.
+ * @rmtoll WINR WIN LL_IWDG_GetWindow
+ * @param IWDGx IWDG Instance
+ * @retval Value between Min_Data=0 and Max_Data=0x0FFF
+ */
+__STATIC_INLINE uint32_t LL_IWDG_GetWindow(IWDG_TypeDef *IWDGx)
+{
+ return (READ_REG(IWDGx->WINR));
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup IWDG_LL_EF_FLAG_Management FLAG_Management
+ * @{
+ */
+
+/**
+ * @brief Check if flag Prescaler Value Update is set or not
+ * @rmtoll SR PVU LL_IWDG_IsActiveFlag_PVU
+ * @param IWDGx IWDG Instance
+ * @retval State of bit (1 or 0).
+ */
+__STATIC_INLINE uint32_t LL_IWDG_IsActiveFlag_PVU(IWDG_TypeDef *IWDGx)
+{
+ return ((READ_BIT(IWDGx->SR, IWDG_SR_PVU) == (IWDG_SR_PVU)) ? 1UL : 0UL);
+}
+
+/**
+ * @brief Check if flag Reload Value Update is set or not
+ * @rmtoll SR RVU LL_IWDG_IsActiveFlag_RVU
+ * @param IWDGx IWDG Instance
+ * @retval State of bit (1 or 0).
+ */
+__STATIC_INLINE uint32_t LL_IWDG_IsActiveFlag_RVU(IWDG_TypeDef *IWDGx)
+{
+ return ((READ_BIT(IWDGx->SR, IWDG_SR_RVU) == (IWDG_SR_RVU)) ? 1UL : 0UL);
+}
+
+/**
+ * @brief Check if flag Window Value Update is set or not
+ * @rmtoll SR WVU LL_IWDG_IsActiveFlag_WVU
+ * @param IWDGx IWDG Instance
+ * @retval State of bit (1 or 0).
+ */
+__STATIC_INLINE uint32_t LL_IWDG_IsActiveFlag_WVU(IWDG_TypeDef *IWDGx)
+{
+ return ((READ_BIT(IWDGx->SR, IWDG_SR_WVU) == (IWDG_SR_WVU)) ? 1UL : 0UL);
+}
+
+/**
+ * @brief Check if all flags Prescaler, Reload & Window Value Update are reset or not
+ * @rmtoll SR PVU LL_IWDG_IsReady\n
+ * SR WVU LL_IWDG_IsReady\n
+ * SR RVU LL_IWDG_IsReady
+ * @param IWDGx IWDG Instance
+ * @retval State of bits (1 or 0).
+ */
+__STATIC_INLINE uint32_t LL_IWDG_IsReady(IWDG_TypeDef *IWDGx)
+{
+ return ((READ_BIT(IWDGx->SR, IWDG_SR_PVU | IWDG_SR_RVU | IWDG_SR_WVU) == 0U) ? 1UL : 0UL);
+}
+
+/**
+ * @}
+ */
+
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* IWDG1 || IWDG2 */
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* STM32H7xx_LL_IWDG_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|