teralytic / mbed-dev

mbed library sources. Supersedes mbed-src.

Fork of mbed by teralytic

Diff: targets/hal/TARGET_STM/TARGET_STM32L4/rtc_api.c

Revision:
34:bb6061527455
Parent:
0:9b334a45a8ff
Child:
48:b854a29e778d
--- a/targets/hal/TARGET_STM/TARGET_STM32L4/rtc_api.c	Thu Dec 03 15:15:11 2015 +0000
+++ b/targets/hal/TARGET_STM/TARGET_STM32L4/rtc_api.c	Mon Dec 07 08:00:11 2015 +0000
@@ -48,6 +48,9 @@
 
     RtcHandle.Instance = RTC;
 
+    // Check if RTC is already initialized
+    if ((RTC->ISR & RTC_ISR_INITS) ==  RTC_ISR_INITS) return;
+
     // Enable Power clock
     __HAL_RCC_PWR_CLK_ENABLE();