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stm32: rcc: add reset reason group flags.

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Originally suggested in https://github.com/libopencm3/libopencm3/pull/399

At least provide macros for each family that allows easy masking of the
full set of reset reason flags.  Trying to provide a function that
provides these in random upper bits seems unclear at best.
This commit is contained in:
Karl Palsson
2017-03-26 21:47:45 +00:00
parent 904345eaf1
commit d1d511c6f4
8 changed files with 26 additions and 1 deletions
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6
include/libopencm3/stm32/l0/rcc.h
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@@ -469,7 +469,11 @@
#define RCC_CSR_PORRSTF (1 << 27)
#define RCC_CSR_PINRSTF (1 << 26)
#define RCC_CSR_OBLRSTF (1 << 25)
#define RCC_CSR_RMVF (1 << 24)
#define RCC_CSR_FWRSTF (1 << 24)
#define RCC_CSR_RMVF (1 << 23)
#define RCC_CSR_RESET_FLAGS (RCC_CSR_LPWRRSTF | RCC_CSR_WWDGRSTF |\
RCC_CSR_IWDGRSTF | RCC_CSR_SFTRSTF | RCC_CSR_PORRSTF |\
RCC_CSR_PINRSTF | RCC_CSR_OBLRSTF | RCC_CSR_FWRSTF)
#define RCC_CSR_RTCRST (1 << 19)
#define RCC_CSR_RTCEN (1 << 18)
#define RCC_CSR_RTCSEL_SHIFT (16)