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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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28
stm-firmware/stm-periph/rcc-manager.c
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@@ -21,6 +21,7 @@
#include <stm-periph/rcc-manager.h>
#include <helper-macros/helper-macros.h>
#include <stdlib.h>
#include <stm32/stm32f4xx.h>
struct rcc_enable_count {
volatile uint32_t *rcc_reg_addr;
@@ -153,3 +154,30 @@ int rcc_manager_disable_clock(volatile uint32_t *rcc_enable_register, uint8_t bi
return ret_val;
}
enum rcc_reset_source rcc_manager_get_reset_cause(bool clear_flags)
{
enum rcc_reset_source ret = 0;
uint32_t rcc_csr;
rcc_csr = RCC->CSR;
if (rcc_csr & RCC_CSR_LPWRRSTF)
ret |= RCC_RESET_SOURCE_LOW_POWER;
if (rcc_csr & RCC_CSR_WWDGRSTF)
ret |= RCC_RESET_SOURCE_WWD;
if (rcc_csr & RCC_CSR_WDGRSTF)
ret |= RCC_RESET_SOURCE_IWDG;
if (rcc_csr & RCC_CSR_SFTRSTF)
ret |= RCC_RESET_SOURCE_SOFTWARE;
if (rcc_csr & RCC_CSR_PORRSTF)
ret |= RCC_RESET_SOURCE_POWER_ON;
if (rcc_csr & RCC_CSR_PADRSTF)
ret |= RCC_RESET_SOURCE_PIN;
if (rcc_csr & RCC_CSR_BORRSTF)
ret |= RCC_RESET_BOR_POR;
if (clear_flags)
RCC->CSR |= RCC_CSR_RMVF;
return ret;
}