协议修改为小端规则，并添加新命令

app/drivers/sertrf/protocol/resend_protl.h

@@ -25,9 +25,11 @@ typedef enum
 {
     RESEND_CMD_DATA = 0x01,
     RESEND_CMD_ACK = 0x02,
-    RESEND_CMD_STATUS = 0x03,
-    RESEND_CMD_DATA_ACK = 0x04,
+    RESEND_CMD_GET_STATUS = 0x03,
+    RESEND_CMD_STATUS = 0x04,
+    RESEND_CMD_SET_STATUS = 0x05,
 
+    RESEND_CMD_DATA_ACK = 0x06,
 
     RESEND_CMD_OTA_START = 0x011,
     RESEND_CMD_OTA_DATA = 0x012,
@@ -74,6 +76,8 @@ typedef struct
     resend_frame_t tx_frame;                // 发送帧
     resend_status_t status;                 // 帧状态
 
+    uint8_t handle_flag;                    // 接收请求帧处理标志
+
     int (*send)(void* data, uint16_t len, int timeout);  // 发送数据
     int (*recv)(void* data, uint16_t len, int timeout);  // 接收数据
     int (*get_length )(void);                               // 获取数据长度