From 803b76df86ed5eadfa3e0150bc5a3b129ae1f7c6 Mon Sep 17 00:00:00 2001
From: Andelf <andelf@gmail.com>
Date: Mon, 8 Apr 2024 01:23:49 +0800
Subject: [PATCH] Fix crash caused by using higher MSI on STM32WL
---
embassy-stm32/src/rcc/l.rs | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/embassy-stm32/src/rcc/l.rs b/embassy-stm32/src/rcc/l.rs
index 9079ddd41..d40ea0c53 100644
--- a/embassy-stm32/src/rcc/l.rs
+++ b/embassy-stm32/src/rcc/l.rs
@@ -157,6 +157,13 @@ pub(crate) unsafe fn init(config: Config) {
while RCC.cfgr().read().sws() != Sysclk::MSI {}
}
+ #[cfg(stm32wl)]
+ {
+ // Set max latency
+ FLASH.acr().modify(|w| w.set_prften(true));
+ FLASH.acr().modify(|w| w.set_latency(2));
+ }
+
// Set voltage scale
#[cfg(any(stm32l0, stm32l1))]
{