diff --git a/reset_mcu.sh b/reset_mcu.sh
index 05b8a4d..1469246 100755
--- a/reset_mcu.sh
+++ b/reset_mcu.sh
@@ -22,7 +22,7 @@ if [ "$#" -ne 2 ]; then
 fi
 stty -F $1 speed $2 cs8 -parenb -cstopb raw -echo -echoe -echok -echoctl -echoke
 
-echo -e "RESET!" > $1
+echo -e "RESET!\r" > $1
 
  
 #说明：