Diff: TARGET_NUCLEO_L476RG/stm32l4xx_ll_iwdg.h

Revision:

122:f9eeca106725

diff -r 6c34061e7c34 -r f9eeca106725 TARGET_NUCLEO_L476RG/stm32l4xx_ll_iwdg.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_NUCLEO_L476RG/stm32l4xx_ll_iwdg.h	Thu Jul 07 14:34:11 2016 +0100
@@ -0,0 +1,363 @@
+/**
+  ******************************************************************************
+  * @file    stm32l4xx_ll_iwdg.h
+  * @author  MCD Application Team
+  * @version V1.5.1
+  * @date    31-May-2016
+  * @brief   Header file of IWDG LL module.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2016 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 __STM32L4xx_LL_IWDG_H
+#define __STM32L4xx_LL_IWDG_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32l4xx.h"
+
+/** @addtogroup STM32L4xx_LL_Driver
+  * @{
+  */
+
+#if defined(IWDG)
+
+/** @defgroup IWDG_LL IWDG
+  * @{
+  */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+
+/* Private constants ---------------------------------------------------------*/
+/** @defgroup IWDG_LL_Private_Constants IWDG Private Constants
+  * @{
+  */
+
+#define LL_IWDG_KEY_RELOAD                 ((uint32_t)0x0000AAAAU)               /*!< IWDG Reload Counter Enable   */
+#define LL_IWDG_KEY_ENABLE                 ((uint32_t)0x0000CCCCU)               /*!< IWDG Peripheral Enable       */
+#define LL_IWDG_KEY_WR_ACCESS_ENABLE       ((uint32_t)0x00005555U)               /*!< IWDG KR Write Access Enable  */
+#define LL_IWDG_KEY_WR_ACCESS_DISABLE      ((uint32_t)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                ((uint32_t)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(IWDG->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(IWDG->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(IWDG->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(IWDG->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 (uint32_t)(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 (uint32_t)(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 (uint32_t)(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));
+}
+
+/**
+  * @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));
+}
+
+/**
+  * @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));
+}
+
+/**
+  * @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);
+}
+
+/**
+  * @}
+  */
+
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* IWDG) */
+
+/**
+  * @}
+  */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32L4xx_LL_IWDG_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/