stmhal: f7: Fix recent RTC change to build on F7.

16573452 · Dave Hylands · Damien George · 3833d384 · 16573452
Commit 16573452 authored Oct 30, 2015 by Dave Hylands Committed by Damien George Oct 30, 2015
--- a/stmhal/rtc.c
+++ b/stmhal/rtc.c
@@ -181,7 +181,11 @@ void rtc_init(void) {
    // if LTE enabled & ready --> no need to (re-)init RTC
    if ((RCC->BDCR & (RCC_BDCR_LSEON | RCC_BDCR_LSERDY)) == (RCC_BDCR_LSEON | RCC_BDCR_LSERDY)) {
        // remove Backup Domain write protection
+        #if defined(MCU_SERIES_F7)
+        PWR->CR1 |= PWR_CR1_DBP;
+        #else
        PWR->CR |= PWR_CR_DBP;
+        #endif
        // Clear source Reset Flag
        __HAL_RCC_CLEAR_RESET_FLAGS();
        // provide some status information