Merge pull request #1730 from bartekkowalski/main

LSE requires setting PWREN bit on STM32L4
2023-08-01 08:07:55 +00:00 · 2023-08-01 08:07:55 +00:00 · 5e4f65fe1f
commit 5e4f65fe1f
parent a1fce1b554 5fcebd28f4
1 changed files with 1 additions and 0 deletions
--- a/embassy-stm32/src/rcc/l4.rs
+++ b/embassy-stm32/src/rcc/l4.rs
@ -412,6 +412,7 @@ pub(crate) unsafe fn init(config: Config) {
    match config.rtc_mux {
        RtcClockSource::LSE32 => {
            // 1. Unlock the backup domain
+            RCC.apb1enr1().modify(|w| w.set_pwren(true));
            PWR.cr1().modify(|w| w.set_dbp(true));

            // 2. Setup the LSE