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authorTrygve Laugstøl <trygvis@inamo.no>2017-05-31 23:51:56 +0200
committerTrygve Laugstøl <trygvis@inamo.no>2017-05-31 23:51:56 +0200
commitdcfb42c972f904482514ef194003018a02c8c260 (patch)
tree4bd9b0867bdcc53c0ba7d13d22921e66cb0738f6 /bsp/radio-controller-1/Drivers
parentedaad76b66e47d945d7aa352d13de5ab8251317a (diff)
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o Lots of work, IC not really working. Almost there.
Diffstat (limited to 'bsp/radio-controller-1/Drivers')
-rw-r--r--bsp/radio-controller-1/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_iwdg.h299
-rw-r--r--bsp/radio-controller-1/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_iwdg.c360
2 files changed, 659 insertions, 0 deletions
diff --git a/bsp/radio-controller-1/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_iwdg.h b/bsp/radio-controller-1/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_iwdg.h
new file mode 100644
index 0000000..86a7f5a
--- /dev/null
+++ b/bsp/radio-controller-1/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_iwdg.h
@@ -0,0 +1,299 @@
+/**
+ ******************************************************************************
+ * @file stm32f1xx_hal_iwdg.h
+ * @author MCD Application Team
+ * @version V1.0.4
+ * @date 29-April-2016
+ * @brief Header file of IWDG HAL 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 __STM32F1xx_HAL_IWDG_H
+#define __STM32F1xx_HAL_IWDG_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f1xx_hal_def.h"
+
+/** @addtogroup STM32F1xx_HAL_Driver
+ * @{
+ */
+
+/** @addtogroup IWDG
+ * @{
+ */
+
+/* Exported types ------------------------------------------------------------*/
+
+/** @defgroup IWDG_Exported_Types 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 IWDG Exported Constants
+ * @{
+ */
+
+/** @defgroup IWDG_Registers_BitMask IWDG Registers BitMask
+ * @brief IWDG registers bit mask
+ * @{
+ */
+/* --- KR Register ---*/
+/* KR register bit mask */
+#define IWDG_KEY_RELOAD ((uint32_t)0xAAAA) /*!< IWDG Reload Counter Enable */
+#define IWDG_KEY_ENABLE ((uint32_t)0xCCCC) /*!< IWDG Peripheral Enable */
+#define IWDG_KEY_WRITE_ACCESS_ENABLE ((uint32_t)0x5555) /*!< IWDG KR Write Access Enable */
+#define IWDG_KEY_WRITE_ACCESS_DISABLE ((uint32_t)0x0000) /*!< IWDG KR Write Access Disable */
+
+/**
+ * @}
+ */
+
+/** @defgroup IWDG_Flag_definition IWDG Flag definition
+ * @{
+ */
+#define IWDG_FLAG_PVU ((uint32_t)IWDG_SR_PVU) /*!< Watchdog counter prescaler value update Flag */
+#define IWDG_FLAG_RVU ((uint32_t)IWDG_SR_RVU) /*!< Watchdog counter reload value update Flag */
+
+/**
+ * @}
+ */
+
+/** @defgroup IWDG_Prescaler IWDG Prescaler
+ * @{
+ */
+#define IWDG_PRESCALER_4 ((uint8_t)0x00) /*!< IWDG prescaler set to 4 */
+#define IWDG_PRESCALER_8 ((uint8_t)(IWDG_PR_PR_0)) /*!< IWDG prescaler set to 8 */
+#define IWDG_PRESCALER_16 ((uint8_t)(IWDG_PR_PR_1)) /*!< IWDG prescaler set to 16 */
+#define IWDG_PRESCALER_32 ((uint8_t)(IWDG_PR_PR_1 | IWDG_PR_PR_0)) /*!< IWDG prescaler set to 32 */
+#define IWDG_PRESCALER_64 ((uint8_t)(IWDG_PR_PR_2)) /*!< IWDG prescaler set to 64 */
+#define IWDG_PRESCALER_128 ((uint8_t)(IWDG_PR_PR_2 | IWDG_PR_PR_0)) /*!< IWDG prescaler set to 128 */
+#define IWDG_PRESCALER_256 ((uint8_t)(IWDG_PR_PR_2 | IWDG_PR_PR_1)) /*!< IWDG prescaler set to 256 */
+
+/**
+ * @}
+ */
+
+
+/**
+ * @}
+ */
+
+/* Exported macros -----------------------------------------------------------*/
+
+/** @defgroup IWDG_Exported_Macros IWDG Exported Macros
+ * @{
+ */
+
+/** @brief Reset IWDG handle state
+ * @param __HANDLE__: IWDG handle.
+ * @retval None
+ */
+#define __HAL_IWDG_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_IWDG_STATE_RESET)
+
+/**
+ * @brief Enables the IWDG peripheral.
+ * @param __HANDLE__: IWDG handle
+ * @retval None
+ */
+#define __HAL_IWDG_START(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_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__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_RELOAD)
+
+
+
+/**
+ * @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__))
+
+/**
+ * @}
+ */
+
+/* Private macro -------------------------------------------------------------*/
+
+/** @defgroup IWDG_Private_Macros IWDG Private Macros
+ * @{
+ */
+
+
+/**
+ * @brief Enables write access to IWDG_PR and IWDG_RLR registers.
+ * @param __HANDLE__: IWDG handle
+ * @retval None
+ */
+#define IWDG_ENABLE_WRITE_ACCESS(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_ENABLE)
+
+/**
+ * @brief Disables write access to IWDG_PR and IWDG_RLR registers.
+ * @param __HANDLE__: IWDG handle
+ * @retval None
+ */
+#define IWDG_DISABLE_WRITE_ACCESS(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_DISABLE)
+
+
+#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))
+
+
+#define IS_IWDG_RELOAD(__RELOAD__) ((__RELOAD__) <= 0xFFF)
+
+
+/**
+ * @}
+ */
+
+
+
+/* Exported functions --------------------------------------------------------*/
+
+/** @addtogroup IWDG_Exported_Functions
+ * @{
+ */
+
+/** @addtogroup IWDG_Exported_Functions_Group1
+ * @{
+ */
+/* Initialization/de-initialization functions ********************************/
+HAL_StatusTypeDef HAL_IWDG_Init(IWDG_HandleTypeDef *hiwdg);
+void HAL_IWDG_MspInit(IWDG_HandleTypeDef *hiwdg);
+
+/**
+ * @}
+ */
+
+/** @addtogroup IWDG_Exported_Functions_Group2
+ * @{
+ */
+/* I/O operation functions ****************************************************/
+HAL_StatusTypeDef HAL_IWDG_Start(IWDG_HandleTypeDef *hiwdg);
+HAL_StatusTypeDef HAL_IWDG_Refresh(IWDG_HandleTypeDef *hiwdg);
+
+/**
+ * @}
+ */
+
+/** @addtogroup IWDG_Exported_Functions_Group3
+ * @{
+ */
+/* Peripheral State functions ************************************************/
+HAL_IWDG_StateTypeDef HAL_IWDG_GetState(IWDG_HandleTypeDef *hiwdg);
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F1xx_HAL_IWDG_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/bsp/radio-controller-1/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_iwdg.c b/bsp/radio-controller-1/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_iwdg.c
new file mode 100644
index 0000000..f867c7c
--- /dev/null
+++ b/bsp/radio-controller-1/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_iwdg.c
@@ -0,0 +1,360 @@
+/**
+ ******************************************************************************
+ * @file stm32f1xx_hal_iwdg.c
+ * @author MCD Application Team
+ * @version V1.0.4
+ * @date 29-April-2016
+ * @brief IWDG HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities of the Independent Watchdog (IWDG) peripheral:
+ * + Initialization and Configuration functions
+ * + IO operation functions
+ * + Peripheral State functions
+ @verbatim
+================================================================================
+ ##### IWDG specific features #####
+================================================================================
+ [..]
+ (+) The IWDG can be started by either software or hardware (configurable
+ through option byte).
+ (+) The IWDG is clocked by its own dedicated Low-Speed clock (LSI) and
+ thus stays active even if the main clock fails.
+ (+) Once the IWDG is started, the LSI is forced ON and cannot be disabled
+ (LSI cannot be disabled too), and the counter starts counting down from
+ the reset value of 0xFFF. When it reaches the end of count value (0x000)
+ a system reset is generated.
+ (+) The IWDG counter should be refreshed at regular intervals, otherwise the
+ watchdog generates an MCU reset when the counter reaches 0.
+ (+) The IWDG is implemented in the VDD voltage domain that is still functional
+ in STOP and STANDBY mode (IWDG reset can wake-up from STANDBY).
+ (+) IWDGRST flag in RCC_CSR register can be used to inform when an IWDG
+ reset occurs.
+
+ (+) Min-max timeout value at 40KHz (LSI): 0.1us / 26.2s .
+ The IWDG timeout may vary due to LSI frequency dispersion. STM32F1xx
+ devices provide the capability to measure the LSI frequency (LSI clock
+ connected internally to TIM5 CH4 input capture). The measured value
+ can be used to have an IWDG timeout with an acceptable accuracy.
+ For more information, please refer to the STM32F1xx Reference manual.
+ Note: LSI Calibration is only available on: High density, XL-density and Connectivity line devices.
+
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ (+) Use IWDG using HAL_IWDG_Init() function to :
+ (++) Enable write access to IWDG_PR, IWDG_RLR.
+ (++) Configure the IWDG prescaler, counter reload value.
+ This reload value will be loaded in the IWDG counter each time the counter
+ is reloaded, then the IWDG will start counting down from this value.
+ (+) Use IWDG using HAL_IWDG_Start() function to :
+ (++) Reload IWDG counter with value defined in the IWDG_RLR register.
+ (++) Start the IWDG, when the IWDG is used in software mode (no need
+ to enable the LSI, it will be enabled by hardware).
+ (+) Then the application program must refresh the IWDG counter at regular
+ intervals during normal operation to prevent an MCU reset, using
+ HAL_IWDG_Refresh() function.
+
+ *** IWDG HAL driver macros list ***
+ ====================================
+ [..]
+ Below the list of most used macros in IWDG HAL driver.
+
+ (+) __HAL_IWDG_START: Enable the IWDG peripheral
+ (+) __HAL_IWDG_RELOAD_COUNTER: Reloads IWDG counter with value defined in the reload register
+ (+) __HAL_IWDG_GET_FLAG: Get the selected IWDG's flag status
+
+ @endverbatim
+ ******************************************************************************
+ * @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.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f1xx_hal.h"
+
+/** @addtogroup STM32F1xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup IWDG IWDG
+ * @brief IWDG HAL module driver.
+ * @{
+ */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+
+/** @defgroup IWDG_Private_Constants IWDG Private Constants
+ * @{
+ */
+
+#define IWDG_DEFAULT_TIMEOUT (uint32_t)1000
+
+/**
+ * @}
+ */
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/** @defgroup IWDG_Exported_Functions IWDG Exported Functions
+ * @{
+ */
+
+/** @defgroup IWDG_Exported_Functions_Group1 Initialization and de-initialization functions
+ * @brief Initialization and Configuration functions.
+ *
+@verbatim
+ ===============================================================================
+ ##### Initialization and de-initialization functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to:
+ (+) Initialize the IWDG according to the specified parameters
+ in the IWDG_InitTypeDef and create the associated handle
+ (+) Initialize the IWDG MSP
+ (+) DeInitialize IWDG MSP
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initializes the IWDG according to the specified
+ * parameters in the IWDG_InitTypeDef and creates the associated handle.
+ * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
+ * the configuration information for the specified IWDG module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IWDG_Init(IWDG_HandleTypeDef *hiwdg)
+{
+ /* Check the IWDG handle allocation */
+ if(hiwdg == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_IWDG_ALL_INSTANCE(hiwdg->Instance));
+ assert_param(IS_IWDG_PRESCALER(hiwdg->Init.Prescaler));
+ assert_param(IS_IWDG_RELOAD(hiwdg->Init.Reload));
+
+ /* Check pending flag, if previous update not done, return error */
+ if((__HAL_IWDG_GET_FLAG(hiwdg, IWDG_FLAG_PVU) != RESET)
+ &&(__HAL_IWDG_GET_FLAG(hiwdg, IWDG_FLAG_RVU) != RESET))
+ {
+ return HAL_ERROR;
+ }
+
+ if(hiwdg->State == HAL_IWDG_STATE_RESET)
+ {
+ /* Allocate lock resource and initialize it */
+ hiwdg->Lock = HAL_UNLOCKED;
+
+ /* Init the low level hardware */
+ HAL_IWDG_MspInit(hiwdg);
+ }
+
+ /* Change IWDG peripheral state */
+ hiwdg->State = HAL_IWDG_STATE_BUSY;
+
+ /* Enable write access to IWDG_PR and IWDG_RLR registers */
+ IWDG_ENABLE_WRITE_ACCESS(hiwdg);
+
+ /* Write to IWDG registers the IWDG_Prescaler & IWDG_Reload values to work with */
+ MODIFY_REG(hiwdg->Instance->PR, IWDG_PR_PR, hiwdg->Init.Prescaler);
+ MODIFY_REG(hiwdg->Instance->RLR, IWDG_RLR_RL, hiwdg->Init.Reload);
+
+ /* Change IWDG peripheral state */
+ hiwdg->State = HAL_IWDG_STATE_READY;
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Initializes the IWDG MSP.
+ * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
+ * the configuration information for the specified IWDG module.
+ * @retval None
+ */
+__weak void HAL_IWDG_MspInit(IWDG_HandleTypeDef *hiwdg)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(hiwdg);
+ /* NOTE : This function Should not be modified, when the callback is needed,
+ the HAL_IWDG_MspInit could be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup IWDG_Exported_Functions_Group2 IO operation functions
+ * @brief IO operation functions
+ *
+@verbatim
+ ===============================================================================
+ ##### IO operation functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to:
+ (+) Start the IWDG.
+ (+) Refresh the IWDG.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Starts the IWDG.
+ * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
+ * the configuration information for the specified IWDG module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IWDG_Start(IWDG_HandleTypeDef *hiwdg)
+{
+ /* Process Locked */
+ __HAL_LOCK(hiwdg);
+
+ /* Change IWDG peripheral state */
+ hiwdg->State = HAL_IWDG_STATE_BUSY;
+
+ /* Start the IWDG peripheral */
+ __HAL_IWDG_START(hiwdg);
+
+ /* Reload IWDG counter with value defined in the RLR register */
+ __HAL_IWDG_RELOAD_COUNTER(hiwdg);
+
+ /* Change IWDG peripheral state */
+ hiwdg->State = HAL_IWDG_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hiwdg);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Refreshes the IWDG.
+ * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
+ * the configuration information for the specified IWDG module.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_IWDG_Refresh(IWDG_HandleTypeDef *hiwdg)
+{
+ uint32_t tickstart = 0;
+
+ /* Process Locked */
+ __HAL_LOCK(hiwdg);
+
+ /* Change IWDG peripheral state */
+ hiwdg->State = HAL_IWDG_STATE_BUSY;
+
+ tickstart = HAL_GetTick();
+
+ /* Wait until RVU flag is RESET */
+ while(__HAL_IWDG_GET_FLAG(hiwdg, IWDG_FLAG_RVU) != RESET)
+ {
+ if((HAL_GetTick() - tickstart ) > IWDG_DEFAULT_TIMEOUT)
+ {
+ /* Set IWDG state */
+ hiwdg->State = HAL_IWDG_STATE_TIMEOUT;
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hiwdg);
+
+ return HAL_TIMEOUT;
+ }
+ }
+
+ /* Reload IWDG counter with value defined in the reload register */
+ __HAL_IWDG_RELOAD_COUNTER(hiwdg);
+
+ /* Change IWDG peripheral state */
+ hiwdg->State = HAL_IWDG_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hiwdg);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup IWDG_Exported_Functions_Group3 Peripheral State functions
+ * @brief Peripheral State functions.
+ *
+@verbatim
+ ===============================================================================
+ ##### Peripheral State functions #####
+ ===============================================================================
+ [..]
+ This subsection permits to get in run-time the status of the peripheral
+ and the data flow.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Returns the IWDG state.
+ * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains
+ * the configuration information for the specified IWDG module.
+ * @retval HAL state
+ */
+HAL_IWDG_StateTypeDef HAL_IWDG_GetState(IWDG_HandleTypeDef *hiwdg)
+{
+ return hiwdg->State;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* HAL_IWDG_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/