diff --git a/LGTISP.ino b/LGTISP.ino
index 00de215..f4a0081 100644
--- a/LGTISP.ino
+++ b/LGTISP.ino
@@ -49,9 +49,9 @@
 // LarduinoISP for LGTF8FX8P Series
 #include "swd_lgt8fx8p.h"
 
-#if SERIAL_RX_BUFFER_SIZE < 250 // 64 bytes的RX缓冲不够大
-#error : Please change the macro SERIAL_RX_BUFFER_SIZE to 250
-#endif
+//#if SERIAL_RX_BUFFER_SIZE < 250 // 64 bytes的RX缓冲不够大
+//#error : Please change the macro SERIAL_RX_BUFFER_SIZE to 250
+//#endif
 
 #define RESET	10
 #define LED_HB    9
@@ -76,7 +76,7 @@ void pulse(int pin, int times);
 void setup() 
 {
   SWD_init();
-  Serial.begin(115200);
+  Serial.begin(19200);
   
   pinMode(LED_PMODE, OUTPUT);
   //pulse(LED_PMODE, 2);