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Update rtc_api.c #1832

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20 changes: 10 additions & 10 deletions hal/targets/hal/TARGET_STM/TARGET_STM32L4/rtc_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,16 @@ void rtc_init(void)
#endif

RtcHandle.Instance = RTC;

// Enable Power clock
__HAL_RCC_PWR_CLK_ENABLE();

// Enable access to Backup domain
HAL_PWR_EnableBkUpAccess();

// Reset Backup domain
__HAL_RCC_BACKUPRESET_FORCE();
__HAL_RCC_BACKUPRESET_RELEASE();

#if !DEVICE_RTC_LSI
// Enable LSE Oscillator
Expand All @@ -68,16 +78,6 @@ void rtc_init(void)
error("Cannot initialize RTC with LSE\n");
}
#else
// Enable Power clock
__HAL_RCC_PWR_CLK_ENABLE();

// Enable access to Backup domain
HAL_PWR_EnableBkUpAccess();

// Reset Backup domain
__HAL_RCC_BACKUPRESET_FORCE();
__HAL_RCC_BACKUPRESET_RELEASE();

// Enable LSI clock
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; // Mandatory, otherwise the PLL is reconfigured!
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