fix(stm32): disable transmitter during half-duplex read

1 files changed, 5 insertions, 2 deletions

diff --git a/embassy-stm32/src/usart/mod.rs b/embassy-stm32/src/usart/mod.rs
index 89d92dda2..af34b548e 100644
--- a/embassy-stm32/src/usart/mod.rs
+++ b/embassy-stm32/src/usart/mod.rs
@@ -526,9 +526,12 @@ fn blocking_flush(info: &Info) -> Result<(), Error> {
     let r = info.regs;
     while !sr(r).read().tc() {}
 
-    // Enable Receiver after transmission complete for Half-Duplex mode
+    // Disable Transmitter and enable receiver after transmission complete for Half-Duplex mode
     if r.cr3().read().hdsel() {
-        r.cr1().modify(|reg| reg.set_re(true));
+        r.cr1().modify(|reg| {
+            reg.set_te(false);
+            reg.set_re(true);
+        });
     }
 
     Ok(())