zhyinch
2020-11-27 4d532fcd1dcf3484a3e614347aa2164ca331ab74
Ô´Âë/ºËÐİå/Src/application/serial_at_cmd_app.c
@@ -9,7 +9,7 @@
#define CMD_READ   1
#define CMD_WRITE   2
#define CMD_REPLY 3
#define EUART_RX_BUF_SIZE 100
#define EUART_RX_BUF_SIZE 200
typedef enum{   UsartReceiveWaitHead0, 
            UsartReceiveWaitHead1,
            UsartReceiveWaitMsgType,
@@ -18,7 +18,8 @@
            UsartReceiveWaitIndex,
            UsartReceiveWaitDataLen,
            UsartReceiveWaitData,
            UsartReceiveWaitChecksum
            UsartReceiveWaitChecksum0,
            UsartReceiveWaitChecksum1
}UsartRecvPackState;
uint8_t mUsartReceivePack[100] = {0};
@@ -31,7 +32,7 @@
   send_frame[2] = 0x03;
   send_frame[3] = data_length+5;
   send_frame[4] = CMD_REPLY;
   send_frame[5] = index;
   send_frame[5] = index<<1;
   send_frame[6] = data_length;
   memcpy(&send_frame[7], &g_com_map[index], data_length);
   for(int i = 0; i<(data_length+5); i++)
@@ -43,7 +44,7 @@
   
   UART_PushFrame(send_frame, data_length+9);   
}
u16 rec_checksum;
void UsartParseDataHandler(uint8_t data)
{
   static UsartRecvPackState usart_receive_state = UsartReceiveWaitHead0;
@@ -53,7 +54,7 @@
   
   if(usart_receive_state == UsartReceiveWaitChecksum) {         //若收到校验和包
   if(usart_receive_state == UsartReceiveWaitChecksum1) {         //若收到校验和包
      checksum = 0;
      for(int i = 0; i<pack_length-5; i++) { 
         checksum += mUsartReceivePack[i];
@@ -63,8 +64,10 @@
      checksum += pack_index;
      checksum += pack_datalen;
      checksum += pack_msgtype;
      checksum = ~checksum;
      cmd_mode = 0;
      if((data + checksum)&0xff == 0xFF)            //校验通过
      rec_checksum = rec_checksum|(data<<8);
      if((rec_checksum) == (checksum))            //校验通过
      {
         switch(pack_cmd)
         {
@@ -73,6 +76,13 @@
               memcpy((uint8_t*)&g_com_map + pack_index, mUsartReceivePack, pack_datalen);
               //返回一个error状态
               //SendComMap(pack_datalen,pack_index);
            if((g_com_map[CNT_REBOOT]&0xff)==1)
            {
               returnfactory_parameter();
               save_com_map_to_flash();
               delay_ms(100);
               SCB->AIRCR = 0X05FA0000|(unsigned int)0x04; //软复位回到bootloader
            }
               save_com_map_to_flash();
               delay_ms(100);
               NVIC_SystemReset();
@@ -90,11 +100,14 @@
      pack_index = 0;
      pack_length = 0;
      index=0;
   } else if((usart_receive_state == UsartReceiveWaitData) ) {   //若果收到的是正常通讯包
   }  else if((usart_receive_state == UsartReceiveWaitChecksum0) ) {
         rec_checksum = data;
      usart_receive_state = UsartReceiveWaitChecksum1;
   }else if((usart_receive_state == UsartReceiveWaitData) ) {   //若果收到的是正常通讯包
      mUsartReceivePack[index] = data;
      index++;
      if(index == pack_length-5) {      //如果收到的index与长度相等
         usart_receive_state = UsartReceiveWaitChecksum;
         usart_receive_state = UsartReceiveWaitChecksum0;
      }
   } else if(usart_receive_state == UsartReceiveWaitDataLen) {                  //收到指令类型字节
      pack_datalen = data;