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[STM32F7 family] fix issue with RTC init 

the logical test for RTC_ISR_INITS was wronlgy reported from other
STMfamilies.
MBED_16 test works with this modification.
pull/1559/head
adustm 2016-02-22 17:20:27 +01:00
parent 028465a9b8
commit fc84dd9234
1 changed files with 42 additions and 43 deletions
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5
libraries/mbed/targets/hal/TARGET_STM/TARGET_STM32F7/rtc_api.c
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@ -77,7 +77,8 @@ void rtc_init(void)
rtc_freq = LSI_VALUE; rtc_freq = LSI_VALUE;
} }
if((RTC->ISR & RTC_ISR_INITS) == RTC_ISR_INITS) { // RTC initialization and status register (RTC_ISR), cold start (with no backup domain power) RTC reset value // Check if RTC is already initialized
if ((RTC->ISR & RTC_ISR_INITS) == RTC_ISR_INITS) return;
// Enable RTC // Enable RTC
__HAL_RCC_RTC_ENABLE(); __HAL_RCC_RTC_ENABLE();
@ -92,8 +93,6 @@ void rtc_init(void)
if (HAL_RTC_Init(&RtcHandle) != HAL_OK) { if (HAL_RTC_Init(&RtcHandle) != HAL_OK) {
error("RTC error: RTC initialization failed."); error("RTC error: RTC initialization failed.");
} }
}
} }
void rtc_free(void) void rtc_free(void)