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Add generic function to detzermine reset cuase to rcc manager

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This commit is contained in:
Mario Hüttel
2020-12-01 21:24:59 +01:00
parent b1271cee43
commit 8a8004e187
5 changed files with 51 additions and 20 deletions
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7
stm-firmware/include/reflow-controller/safety/watchdog.h
View File

@@ -40,11 +40,4 @@ int watchdog_setup(uint8_t prescaler);
*/
int watchdog_ack(uint32_t magic);
/**
* @brief Check if reset was generated by the watchdog.
* @note This also clears the relevant flag, so the function will return false when called a second time
* @return true, if reset was generated by the watchdog
*/
bool watchdog_check_reset_source(void);
#endif /* __WATCHDOG_H__ */

21
stm-firmware/include/stm-periph/rcc-manager.h
View File

@@ -23,6 +23,7 @@
#include <stdint.h>
#include <stm-periph/stm32-gpio-macros.h>
#include <stdbool.h>
/**
* @brief The RCC Enable Manager uses static memory with a fixed maximum
@@ -35,6 +36,19 @@
#error "RCC Enable Manager not yet implemented with dynamic memory"
#endif
/**
* @brief The source/cause of a system reset. The values can be or'ed together as multiple flags may be possible at the same time.
*/
enum rcc_reset_source {
RCC_RESET_SOURCE_LOW_POWER = (1<<0), /**< @brief System reset caused by low power reset */
RCC_RESET_SOURCE_SOFTWARE = (1<<1), /**< @brief System reset caused by software */
RCC_RESET_SOURCE_WWD = (1<<2), /**< @brief System reset caused by window watchdog */
RCC_RESET_SOURCE_IWDG = (1<<3), /**< @brief System reset caused by independent watchdog */
RCC_RESET_SOURCE_POWER_ON = (1<<4), /**< @brief System reset caused by power on reset (POR) */
RCC_RESET_SOURCE_PIN = (1<<5), /**< @brief System reset caused by NRST pin */
RCC_RESET_BOR_POR = (1<<6), /**< @brief System reset caused by eitehr brown out or POR */
};
/**
* @brief Enable Clock for peripheral by setting the corresponding bit (@p bit_no) to one
*
@@ -64,4 +78,11 @@ int rcc_manager_enable_clock(volatile uint32_t *rcc_enable_register, uint8_t bit
*/
int rcc_manager_disable_clock(volatile uint32_t *rcc_enable_register, uint8_t bit_no);
/**
* @brief Get the causes of the last system reset.
* @param clear_flags Clear the reset cause
* @return Reset cause
*/
enum rcc_reset_source rcc_manager_get_reset_cause(bool clear_flags);
#endif /* __RCC_MANAGER_H__ */