Index: ecs_cellMon/firmware/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_iwdg.h =================================================================== --- ecs_cellMon/firmware/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_iwdg.h (revision 9) +++ ecs_cellMon/firmware/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_hal_iwdg.h (revision 9) @@ -0,0 +1,237 @@ +/** + ****************************************************************************** + * @file stm32g0xx_hal_iwdg.h + * @author MCD Application Team + * @brief Header file of IWDG HAL module. + ****************************************************************************** + * @attention + * + * Copyright (c) 2018 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + */ + +/* Define to prevent recursive inclusion -------------------------------------*/ +#ifndef STM32G0xx_HAL_IWDG_H +#define STM32G0xx_HAL_IWDG_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* Includes ------------------------------------------------------------------*/ +#include "stm32g0xx_hal_def.h" + +/** @addtogroup STM32G0xx_HAL_Driver + * @{ + */ + +/** @defgroup IWDG IWDG + * @{ + */ + +/* Exported types ------------------------------------------------------------*/ +/** @defgroup IWDG_Exported_Types IWDG Exported Types + * @{ + */ + +/** + * @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 */ + + uint32_t Window; /*!< Specifies the window value to be compared to the down-counter. + 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 */ +} IWDG_HandleTypeDef; + + +/** + * @} + */ + +/* Exported constants --------------------------------------------------------*/ +/** @defgroup IWDG_Exported_Constants IWDG Exported Constants + * @{ + */ + +/** @defgroup IWDG_Prescaler IWDG Prescaler + * @{ + */ +#define IWDG_PRESCALER_4 0x00000000u /*!< IWDG prescaler set to 4 */ +#define IWDG_PRESCALER_8 IWDG_PR_PR_0 /*!< IWDG prescaler set to 8 */ +#define IWDG_PRESCALER_16 IWDG_PR_PR_1 /*!< IWDG prescaler set to 16 */ +#define IWDG_PRESCALER_32 (IWDG_PR_PR_1 | IWDG_PR_PR_0) /*!< IWDG prescaler set to 32 */ +#define IWDG_PRESCALER_64 IWDG_PR_PR_2 /*!< IWDG prescaler set to 64 */ +#define IWDG_PRESCALER_128 (IWDG_PR_PR_2 | IWDG_PR_PR_0) /*!< IWDG prescaler set to 128 */ +#define IWDG_PRESCALER_256 (IWDG_PR_PR_2 | IWDG_PR_PR_1) /*!< IWDG prescaler set to 256 */ +/** + * @} + */ + +/** @defgroup IWDG_Window_option IWDG Window option + * @{ + */ +#define IWDG_WINDOW_DISABLE IWDG_WINR_WIN +/** + * @} + */ + +/** + * @} + */ + +/* Exported macros -----------------------------------------------------------*/ +/** @defgroup IWDG_Exported_Macros IWDG Exported Macros + * @{ + */ + +/** + * @brief Enable the IWDG peripheral. + * @param __HANDLE__ IWDG handle + * @retval None + */ +#define __HAL_IWDG_START(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_ENABLE) + +/** + * @brief Reload IWDG counter with value defined in the reload register + * (write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers disabled). + * @param __HANDLE__ IWDG handle + * @retval None + */ +#define __HAL_IWDG_RELOAD_COUNTER(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_RELOAD) + +/** + * @} + */ + +/* Exported functions --------------------------------------------------------*/ +/** @defgroup IWDG_Exported_Functions IWDG Exported Functions + * @{ + */ + +/** @defgroup IWDG_Exported_Functions_Group1 Initialization and Start functions + * @{ + */ +/* Initialization/Start functions ********************************************/ +HAL_StatusTypeDef HAL_IWDG_Init(IWDG_HandleTypeDef *hiwdg); +/** + * @} + */ + +/** @defgroup IWDG_Exported_Functions_Group2 IO operation functions + * @{ + */ +/* I/O operation functions ****************************************************/ +HAL_StatusTypeDef HAL_IWDG_Refresh(IWDG_HandleTypeDef *hiwdg); +/** + * @} + */ + +/** + * @} + */ + +/* Private constants ---------------------------------------------------------*/ +/** @defgroup IWDG_Private_Constants IWDG Private Constants + * @{ + */ + +/** + * @brief IWDG Key Register BitMask + */ +#define IWDG_KEY_RELOAD 0x0000AAAAu /*!< IWDG Reload Counter Enable */ +#define IWDG_KEY_ENABLE 0x0000CCCCu /*!< IWDG Peripheral Enable */ +#define IWDG_KEY_WRITE_ACCESS_ENABLE 0x00005555u /*!< IWDG KR Write Access Enable */ +#define IWDG_KEY_WRITE_ACCESS_DISABLE 0x00000000u /*!< IWDG KR Write Access Disable */ + +/** + * @} + */ + +/* Private macros ------------------------------------------------------------*/ +/** @defgroup IWDG_Private_Macros IWDG Private Macros + * @{ + */ + +/** + * @brief Enable write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers. + * @param __HANDLE__ IWDG handle + * @retval None + */ +#define IWDG_ENABLE_WRITE_ACCESS(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_ENABLE) + +/** + * @brief Disable write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers. + * @param __HANDLE__ IWDG handle + * @retval None + */ +#define IWDG_DISABLE_WRITE_ACCESS(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_DISABLE) + +/** + * @brief Check IWDG prescaler value. + * @param __PRESCALER__ IWDG prescaler value + * @retval None + */ +#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)) + +/** + * @brief Check IWDG reload value. + * @param __RELOAD__ IWDG reload value + * @retval None + */ +#define IS_IWDG_RELOAD(__RELOAD__) ((__RELOAD__) <= IWDG_RLR_RL) + +/** + * @brief Check IWDG window value. + * @param __WINDOW__ IWDG window value + * @retval None + */ +#define IS_IWDG_WINDOW(__WINDOW__) ((__WINDOW__) <= IWDG_WINR_WIN) + + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + + +#ifdef __cplusplus +} +#endif + +#endif /* STM32G0xx_HAL_IWDG_H */ Index: ecs_cellMon/firmware/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_iwdg.c =================================================================== --- ecs_cellMon/firmware/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_iwdg.c (revision 9) +++ ecs_cellMon/firmware/Drivers/STM32G0xx_HAL_Driver/Src/stm32g0xx_hal_iwdg.c (revision 9) @@ -0,0 +1,282 @@ +/** + ****************************************************************************** + * @file stm32g0xx_hal_iwdg.c + * @author MCD Application Team + * @brief IWDG HAL module driver. + * This file provides firmware functions to manage the following + * functionalities of the Independent Watchdog (IWDG) peripheral: + * + Initialization and Start functions + * + IO operation functions + * + ****************************************************************************** + * @attention + * + * Copyright (c) 2018 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + @verbatim + ============================================================================== + ##### IWDG Generic features ##### + ============================================================================== + [..] + (+) The IWDG can be started by either software or hardware (configurable + through option byte). + + (+) The IWDG is clocked by the Low-Speed Internal clock (LSI) and thus stays + active even if the main clock fails. + + (+) Once the IWDG is started, the LSI is forced ON and both cannot be + disabled. The counter starts counting down from the reset value (0xFFF). + When it reaches the end of count value (0x000) a reset signal is + generated (IWDG reset). + + (+) Whenever the key value 0x0000 AAAA is written in the IWDG_KR register, + the IWDG_RLR value is reloaded into the counter and the watchdog reset + is prevented. + + (+) The IWDG is implemented in the VDD voltage domain that is still functional + in STOP and STANDBY mode (IWDG reset can wake up the CPU from STANDBY). + IWDGRST flag in RCC_CSR register can be used to inform when an IWDG + reset occurs. + + (+) Debug mode: When the microcontroller enters debug mode (core halted), + the IWDG counter either continues to work normally or stops, depending + on DBG_IWDG_STOP configuration bit in DBG module, accessible through + __HAL_DBGMCU_FREEZE_IWDG() and __HAL_DBGMCU_UNFREEZE_IWDG() macros. + + [..] Min-max timeout value @32KHz (LSI): ~125us / ~32.7s + The IWDG timeout may vary due to LSI clock frequency dispersion. + STM32G0xx devices provide the capability to measure the LSI clock + frequency (LSI clock is internally connected to TIM16 CH1 input capture). + The measured value can be used to have an IWDG timeout with an + acceptable accuracy. + + [..] Default timeout value (necessary for IWDG_SR status register update): + Constant LSI_VALUE is defined based on the nominal LSI clock frequency. + This frequency being subject to variations as mentioned above, the + default timeout value (defined through constant HAL_IWDG_DEFAULT_TIMEOUT + below) may become too short or too long. + In such cases, this default timeout value can be tuned by redefining + the constant LSI_VALUE at user-application level (based, for instance, + on the measured LSI clock frequency as explained above). + + ##### How to use this driver ##### + ============================================================================== + [..] + (#) Use IWDG using HAL_IWDG_Init() function to : + (++) Enable instance by writing Start keyword in IWDG_KEY register. LSI + clock is forced ON and IWDG counter starts counting down. + (++) Enable write access to configuration registers: + IWDG_PR, IWDG_RLR and IWDG_WINR. + (++) Configure the IWDG prescaler and counter reload value. This reload + value will be loaded in the IWDG counter each time the watchdog is + reloaded, then the IWDG will start counting down from this value. + (++) Depending on window parameter: + (+++) If Window Init parameter is same as Window register value, + nothing more is done but reload counter value in order to exit + function with exact time base. + (+++) Else modify Window register. This will automatically reload + watchdog counter. + (++) Wait for status flags to be reset. + + (#) 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 + + @endverbatim + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32g0xx_hal.h" + +/** @addtogroup STM32G0xx_HAL_Driver + * @{ + */ + +#ifdef HAL_IWDG_MODULE_ENABLED +/** @addtogroup IWDG + * @brief IWDG HAL module driver. + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/** @defgroup IWDG_Private_Defines IWDG Private Defines + * @{ + */ +/* Status register needs up to 5 LSI clock periods divided by the clock + prescaler to be updated. The number of LSI clock periods is upper-rounded to + 6 for the timeout value calculation. + The timeout value is calculated using the highest prescaler (256) and + the LSI_VALUE constant. The value of this constant can be changed by the user + to take into account possible LSI clock period variations. + The timeout value is multiplied by 1000 to be converted in milliseconds. + LSI startup time is also considered here by adding LSI_STARTUP_TIME + converted in milliseconds. */ +#define HAL_IWDG_DEFAULT_TIMEOUT (((6UL * 256UL * 1000UL) / LSI_VALUE) + ((LSI_STARTUP_TIME / 1000UL) + 1UL)) +#define IWDG_KERNEL_UPDATE_FLAGS (IWDG_SR_WVU | IWDG_SR_RVU | IWDG_SR_PVU) +/** + * @} + */ + +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Exported functions --------------------------------------------------------*/ + +/** @addtogroup IWDG_Exported_Functions + * @{ + */ + +/** @addtogroup IWDG_Exported_Functions_Group1 + * @brief Initialization and Start functions. + * +@verbatim + =============================================================================== + ##### Initialization and Start functions ##### + =============================================================================== + [..] This section provides functions allowing to: + (+) Initialize the IWDG according to the specified parameters in the + IWDG_InitTypeDef of associated handle. + (+) Manage Window option. + (+) Once initialization is performed in HAL_IWDG_Init function, Watchdog + is reloaded in order to exit function with correct time base. + +@endverbatim + * @{ + */ + +/** + * @brief Initialize the IWDG according to the specified parameters in the + * IWDG_InitTypeDef and start watchdog. Before exiting function, + * watchdog is refreshed in order to have correct time base. + * @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) +{ + uint32_t tickstart; + + /* 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)); + assert_param(IS_IWDG_WINDOW(hiwdg->Init.Window)); + + /* Enable IWDG. LSI is turned on automatically */ + __HAL_IWDG_START(hiwdg); + + /* Enable write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers by writing + 0x5555 in KR */ + IWDG_ENABLE_WRITE_ACCESS(hiwdg); + + /* Write to IWDG registers the Prescaler & Reload values to work with */ + hiwdg->Instance->PR = hiwdg->Init.Prescaler; + hiwdg->Instance->RLR = hiwdg->Init.Reload; + + /* Check pending flag, if previous update not done, return timeout */ + tickstart = HAL_GetTick(); + + /* Wait for register to be updated */ + while ((hiwdg->Instance->SR & IWDG_KERNEL_UPDATE_FLAGS) != 0x00u) + { + if ((HAL_GetTick() - tickstart) > HAL_IWDG_DEFAULT_TIMEOUT) + { + if ((hiwdg->Instance->SR & IWDG_KERNEL_UPDATE_FLAGS) != 0x00u) + { + return HAL_TIMEOUT; + } + } + } + + /* If window parameter is different than current value, modify window + register */ + if (hiwdg->Instance->WINR != hiwdg->Init.Window) + { + /* Write to IWDG WINR the IWDG_Window value to compare with. In any case, + even if window feature is disabled, Watchdog will be reloaded by writing + windows register */ + hiwdg->Instance->WINR = hiwdg->Init.Window; + } + else + { + /* Reload IWDG counter with value defined in the reload register */ + __HAL_IWDG_RELOAD_COUNTER(hiwdg); + } + + /* Return function status */ + return HAL_OK; +} + + +/** + * @} + */ + + +/** @addtogroup IWDG_Exported_Functions_Group2 + * @brief IO operation functions + * +@verbatim + =============================================================================== + ##### IO operation functions ##### + =============================================================================== + [..] This section provides functions allowing to: + (+) Refresh the IWDG. + +@endverbatim + * @{ + */ + +/** + * @brief Refresh 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) +{ + /* Reload IWDG counter with value defined in the reload register */ + __HAL_IWDG_RELOAD_COUNTER(hiwdg); + + /* Return function status */ + return HAL_OK; +} + + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_IWDG_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */