diff --git a/common/usart.h b/common/usart.h
index 146e2e0d7..5cf549ba9 100644
--- a/common/usart.h
+++ b/common/usart.h
@@ -6,6 +6,7 @@
 
 //#define USART_BAUD_RATE 9600
 #define USART_BAUD_RATE 115200
+//#define USART_BAUD_RATE 230400
 //#define USART_BAUD_RATE 460800
 extern uint32_t usart_baudrate;
 #define USART_PARITY 'N'