From 3b37c79331c191a5153bbe4ac7e464150c714f13 Mon Sep 17 00:00:00 2001
From: Rogan Morrow <rogan.o.morrow@gmail.com>
Date: Fri, 28 Feb 2025 12:28:57 +1100
Subject: [PATCH] only clear idle flag

---
 embassy-stm32/src/usart/ringbuffered.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/embassy-stm32/src/usart/ringbuffered.rs b/embassy-stm32/src/usart/ringbuffered.rs
index 560ce4e8f..2a59cdcb4 100644
--- a/embassy-stm32/src/usart/ringbuffered.rs
+++ b/embassy-stm32/src/usart/ringbuffered.rs
@@ -254,7 +254,9 @@ fn clear_idle_flag(r: Regs) -> Sr {
 
     // This read also clears the error and idle interrupt flags on v1.
     unsafe { rdr(r).read_volatile() };
-    clear_interrupt_flags(r, sr);
+    let mut clear_idle = regs::Icr(0);
+    clear_idle.set_idle(true);
+    r.icr().write_value(clear_idle);
 
     r.cr1().modify(|w| w.set_idleie(true));