From 59228e2ab4d70eee356400b2470190885527bbc1 Mon Sep 17 00:00:00 2001
From: Pietro Lorefice <pietro@develer.com>
Date: Fri, 20 Jun 2025 10:47:37 +0200
Subject: [PATCH] stm32: hsem: fix broken CPUID detection

---
 embassy-stm32/src/hsem/mod.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/embassy-stm32/src/hsem/mod.rs b/embassy-stm32/src/hsem/mod.rs
index f648bf861..573a1851d 100644
--- a/embassy-stm32/src/hsem/mod.rs
+++ b/embassy-stm32/src/hsem/mod.rs
@@ -46,7 +46,7 @@ pub enum CoreId {
 #[inline(always)]
 pub fn get_current_coreid() -> CoreId {
     let cpuid = unsafe { cortex_m::peripheral::CPUID::PTR.read_volatile().base.read() };
-    match cpuid & 0x000000F0 {
+    match (cpuid & 0x000000F0) >> 4 {
         #[cfg(any(stm32wb, stm32wl))]
         0x0 => CoreId::Core1,