From 591612db7e5f8f8dd5120b12a55c00da38a510a8 Mon Sep 17 00:00:00 2001
From: Andres Vahter <andres@vahter.me>
Date: Mon, 23 Oct 2023 22:39:24 +0300
Subject: [PATCH] stm32 uart: return error if rx and tx not enabled

---
 embassy-stm32/src/usart/mod.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/embassy-stm32/src/usart/mod.rs b/embassy-stm32/src/usart/mod.rs
index 880ca416..09d5a59d 100644
--- a/embassy-stm32/src/usart/mod.rs
+++ b/embassy-stm32/src/usart/mod.rs
@@ -108,6 +108,7 @@ pub enum StopBits {
 pub enum ConfigError {
     BaudrateTooLow,
     BaudrateTooHigh,
+    RxOrTxNotEnabled,
 }
 
 #[non_exhaustive]
@@ -866,7 +867,7 @@ fn configure(
     enable_tx: bool,
 ) -> Result<(), ConfigError> {
     if !enable_rx && !enable_tx {
-        panic!("USART: At least one of RX or TX should be enabled");
+        return Err(ConfigError::RxOrTxNotEnabled);
     }
 
     #[cfg(not(usart_v4))]