Filippo Casamassima
my fork
Fork of
mbed
by 
mbed official
Diff: TARGET_NUCLEO_F401RE/stm32f4xx_hal_iwdg.h
- Revision:
- 77:869cf507173a
- Child:
- 81:7d30d6019079
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_NUCLEO_F401RE/stm32f4xx_hal_iwdg.h Fri Feb 14 14:36:43 2014 +0000
@@ -0,0 +1,250 @@
+/**
+ ******************************************************************************
+ * @file stm32f4xx_hal_iwdg.h
+ * @author MCD Application Team
+ * @version V1.0.0RC2
+ * @date 04-February-2014
+ * @brief Header file of IWDG HAL module.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2014 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_HAL_IWDG_H
+#define __STM32F4xx_HAL_IWDG_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal_def.h"
+
+/** @addtogroup STM32F4xx_HAL_Driver
+ * @{
+ */
+
+/** @addtogroup IWDG
+ * @{
+ */
+
+/* Exported types ------------------------------------------------------------*/
+
+/**
+ * @brief IWDG HAL State Structure definition
+ */
+typedef enum
+{
+ HAL_IWDG_STATE_RESET = 0x00, /*!< IWDG not yet initialized or disabled */
+ HAL_IWDG_STATE_READY = 0x01, /*!< IWDG initialized and ready for use */
+ HAL_IWDG_STATE_BUSY = 0x02, /*!< IWDG internal process is ongoing */
+ HAL_IWDG_STATE_TIMEOUT = 0x03, /*!< IWDG timeout state */
+ HAL_IWDG_STATE_ERROR = 0x04 /*!< IWDG error state */
+
+}HAL_IWDG_StateTypeDef;
+
+/**
+ * @brief IWDG Init structure definition
+ */
+typedef struct
+{
+ uint32_t Prescaler; /*!< Select the prescaler of the IWDG.
+ This parameter can be a value of @ref IWDG_Prescaler */
+
+ uint32_t Reload; /*!< Specifies the IWDG down-counter reload value.
+ This parameter must be a number between Min_Data = 0 and Max_Data = 0x0FFF */
+
+}IWDG_InitTypeDef;
+
+/**
+ * @brief IWDG handle Structure definition
+ */
+typedef struct
+{
+ IWDG_TypeDef *Instance; /*!< Register base address */
+
+ IWDG_InitTypeDef Init; /*!< IWDG required parameters */
+
+ HAL_LockTypeDef Lock; /*!< IWDG locking object */
+
+ __IO HAL_IWDG_StateTypeDef State; /*!< IWDG communication state */
+
+}IWDG_HandleTypeDef;
+
+/* Exported constants --------------------------------------------------------*/
+/** @defgroup IWDG_Exported_Constants
+ * @{
+ */
+
+/** @defgroup IWDG_Registers_BitMask
+ * @{
+ */
+/* --- KR Register ---*/
+/* KR register bit mask */
+#define KR_KEY_RELOAD ((uint32_t)0xAAAA) /*!< IWDG reload counter enable */
+#define KR_KEY_ENABLE ((uint32_t)0xCCCC) /*!< IWDG peripheral enable */
+#define KR_KEY_EWA ((uint32_t)0x5555) /*!< IWDG KR write Access enable */
+#define KR_KEY_DWA ((uint32_t)0x0000) /*!< IWDG KR write Access disable */
+
+/**
+ * @}
+ */
+
+/** @defgroup IWDG_Flag_definition
+ * @{
+ */
+#define IWDG_FLAG_PVU ((uint32_t)0x0001) /*!< Watchdog counter prescaler value update flag */
+#define IWDG_FLAG_RVU ((uint32_t)0x0002) /*!< Watchdog counter reload value update flag */
+
+#define IS_IWDG_FLAG(FLAG) (((FLAG) == IWDG_FLAG_PVU) || \
+ ((FLAG) == IWDG_FLAG_RVU))
+
+/**
+ * @}
+ */
+
+/** @defgroup IWDG_Prescaler
+ * @{
+ */
+#define IWDG_PRESCALER_4 ((uint8_t)0x00) /*!< IWDG prescaler set to 4 */
+#define IWDG_PRESCALER_8 ((uint8_t)0x01) /*!< IWDG prescaler set to 8 */
+#define IWDG_PRESCALER_16 ((uint8_t)0x02) /*!< IWDG prescaler set to 16 */
+#define IWDG_PRESCALER_32 ((uint8_t)0x03) /*!< IWDG prescaler set to 32 */
+#define IWDG_PRESCALER_64 ((uint8_t)0x04) /*!< IWDG prescaler set to 64 */
+#define IWDG_PRESCALER_128 ((uint8_t)0x05) /*!< IWDG prescaler set to 128 */
+#define IWDG_PRESCALER_256 ((uint8_t)0x06) /*!< IWDG prescaler set to 256 */
+
+#define IS_IWDG_PRESCALER(PRESCALER) (((PRESCALER) == IWDG_PRESCALER_4) || \
+ ((PRESCALER) == IWDG_PRESCALER_8) || \
+ ((PRESCALER) == IWDG_PRESCALER_16) || \
+ ((PRESCALER) == IWDG_PRESCALER_32) || \
+ ((PRESCALER) == IWDG_PRESCALER_64) || \
+ ((PRESCALER) == IWDG_PRESCALER_128)|| \
+ ((PRESCALER) == IWDG_PRESCALER_256))
+
+/**
+ * @}
+ */
+
+/** @defgroup IWDG_Reload_Value
+ * @{
+ */
+#define IS_IWDG_RELOAD(RELOAD) ((RELOAD) <= 0xFFF)
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/* Exported macro ------------------------------------------------------------*/
+
+/**
+ * @brief Enables the IWDG peripheral.
+ * @param __HANDLE__: IWDG handle
+ * @retval None
+ */
+#define __HAL_IWDG_START(__HANDLE__) ((__HANDLE__)->Instance->KR |= KR_KEY_ENABLE)
+
+/**
+ * @brief Reloads IWDG counter with value defined in the reload register
+ * (write access to IWDG_PR and IWDG_RLR registers disabled).
+ * @param __HANDLE__: IWDG handle
+ * @retval None
+ */
+#define __HAL_IWDG_RELOAD_COUNTER(__HANDLE__) (((__HANDLE__)->Instance->KR) |= KR_KEY_RELOAD)
+
+/**
+ * @brief Enables write access to IWDG_PR and IWDG_RLR registers.
+ * @param __HANDLE__: IWDG handle
+ * @retval None
+ */
+#define __HAL_IWDG_ENABLE_WRITE_ACCESS(__HANDLE__) (((__HANDLE__)->Instance->KR) |= KR_KEY_EWA)
+
+/**
+ * @brief Disables write access to IWDG_PR and IWDG_RLR registers.
+ * @param __HANDLE__: IWDG handle
+ * @retval None
+ */
+#define __HAL_IWDG_DISABLE_WRITE_ACCESS(__HANDLE__) (((__HANDLE__)->Instance->KR) |= KR_KEY_DWA)
+
+/**
+ * @brief Gets the selected IWDG's flag status.
+ * @param __HANDLE__: IWDG handle
+ * @param __FLAG__: specifies the flag to check.
+ * This parameter can be one of the following values:
+ * @arg IWDG_FLAG_PVU: Watchdog counter reload value update flag
+ * @arg IWDG_FLAG_RVU: Watchdog counter prescaler value flag
+ * @retval The new state of __FLAG__ (TRUE or FALSE).
+ */
+#define __HAL_IWDG_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
+
+/**
+ * @brief Clears the IWDG's pending flags.
+ * @param __HANDLE__: IWDG handle
+ * @param __FLAG__: specifies the flag to clear.
+ * This parameter can be one of the following values:
+ * @arg IWDG_FLAG_PVU: Watchdog counter reload value update flag
+ * @arg IWDG_FLAG_RVU: Watchdog counter prescaler value flag
+ * @retval None
+ */
+#define __HAL_IWDG_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR &= ~(__FLAG__))
+
+
+/* Exported functions --------------------------------------------------------*/
+
+/* Initialization/de-initialization functions **********************************/
+HAL_StatusTypeDef HAL_IWDG_Init(IWDG_HandleTypeDef *hiwdg);
+__weak void HAL_IWDG_MspInit(IWDG_HandleTypeDef *hiwdg);
+__weak void HAL_IWDG_MspDeInit(IWDG_HandleTypeDef *hiwdg);
+
+/* I/O operation functions ******************************************************/
+HAL_StatusTypeDef HAL_IWDG_Start(IWDG_HandleTypeDef *hiwdg);
+HAL_StatusTypeDef HAL_IWDG_Refresh(IWDG_HandleTypeDef *hiwdg);
+
+/* Peripheral State functions **************************************************/
+HAL_IWDG_StateTypeDef HAL_IWDG_GetState(IWDG_HandleTypeDef *hiwdg);
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F4xx_HAL_IWDG_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/