Merge pull request #8493 from jeromecoutant/PR_PREDIVS

STM32 RTC : Prescaler macro issue
ARMmbed · Oct 23, 2018 · 5bf901b · 5bf901b
2 parents 5b7f4a3 + a955223
commit 5bf901b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/targets/TARGET_STM/rtc_api_hal.h b/targets/TARGET_STM/rtc_api_hal.h
@@ -81,7 +81,7 @@ void rtc_deactivate_wake_up_timer(void);
 
 /* PREDIV_S : 15-bit synchronous prescaler */
 /* PREDIV_S is set in order to get a 1 Hz clock */
-#define PREDIV_S_VALUE RTC_CLOCK / (PREDIV_A_VALUE + 1) - 1
+#define PREDIV_S_VALUE (RTC_CLOCK / (PREDIV_A_VALUE + 1) - 1)
 
 /** Synchronise the RTC shadow registers.
  *