Fix, enable PWR clock before accessing the PWR_CR

stm32-rs · Nov 14, 2021 · 47e2386 · 47e2386
1 parent f101160
commit 47e2386
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/rcc.rs b/src/rcc.rs
@@ -327,6 +327,7 @@ impl BKP {
         // Enable the backup interface by setting PWREN and BKPEN
         let rcc = unsafe { &(*RCC::ptr()) };
         crate::pac::BKP::enable(rcc);
+        crate::pac::PWR::enable(rcc);
 
         // Enable access to the backup registers
         pwr.cr.modify(|_r, w| w.dbp().set_bit());