diff --git a/src/Communication_Protocol.h b/src/Communication_Protocol.h
index 9965c8e..4287249 100644
--- a/src/Communication_Protocol.h
+++ b/src/Communication_Protocol.h
@@ -11,6 +11,22 @@
 //  #define MYCOMAN 0x02  //命令全大写
 // todo : define your protocol here
 /*-------------------------------------------------------------------------------------------------------------*/
+#define GET_BASIC_INFO 0x50
+#define SET_INTEGRAL_TIME 0x51
+#define SET_AUTO_EXPOSURE 0x52
+#define GET_INTEGRAL_TIME_AND_DATA_PROCESS 0x53
+#define GET_TEMPRETURE 0x54
+#define SET_SHUTTER_OPEN 0x55
+#define SET_SHUTTER_CLOSE 0x56
+#define GET_BANDNUMBER 0x57
+#define SET_WEAVE_COEFF 0x58
+#define GET_WEAVE_COEFF 0x59
+#define SET_DATA_PROCESS_METHOD 0x60
+#define GET_DATA_FROM_SENSOR 0x61
+
+
+
+#define NONE_DATA 0x00
 
   
 
diff --git a/src/IRIS_Method.c b/src/IRIS_Method.cpp
similarity index 98%
rename from src/IRIS_Method.c
rename to src/IRIS_Method.cpp
index 9c1412f..3c4b8b8 100644
--- a/src/IRIS_Method.c
+++ b/src/IRIS_Method.cpp
@@ -104,6 +104,9 @@ int32_t IRIS_Cut_Befor_Header(uint8_t *PackData, uint16_t LenthofIn) {
     if (PackData == NULL) {
         return ERROR_INPUT;
     }
+    if (LenthofIn <2) {
+        return LenthofIn;
+    }
     uint16_t i = 0;
     for (i = 0; i < LenthofIn; i++) {
         if (PackData[i] == 0x55 && PackData[i + 1] == 0xAA) {
diff --git a/src/IRIS_Method.h b/src/IRIS_Method.h
index cfbf7c9..e69852d 100644
--- a/src/IRIS_Method.h
+++ b/src/IRIS_Method.h
@@ -1,5 +1,5 @@
 /**
-  ******************************************************************************
+******************************************************************************
   * @file           : IRIS_Method.h
   * @author         : xin
   * @brief          : None
@@ -20,7 +20,8 @@
 #define ERROR_COMMAND -400
 #define ERROR_INPUT -500
 #define ERROR_CRC -600
-
+#include <stdint.h>
+//#include<Arduino.h>
 
 // 成功返回打包后的数据长度
 // -1: Error