逻辑完整，3S开一秒接收的版本，现在测试未优化功耗40ma，串口1反初始化

zhangbo

2025-04-11 0f4ab015bab679dfbf4959716832b5bd976c1a8b

 keil/include/drivers/serial_at_cmd_app.c

@@ -135,144 +135,63 @@
    }

}
double d_value;
#define buff_lenth 1024
#define MAX_BASE_STATIONS 10
uint8_t DMA_RXBuf_BT[200]={0};
uint8_t Forward_BT_buff[buff_lenth]={0};
uint8_t report_ancnum_bt=0;

void UsartParseDataHandler(uint8_t data)
{
    if(state5V_prase_flag&&!g_com_map[MODBUS_MODE])
    {   //升级程序
        static UsartRecvPackState usart_receive_state = UsartReceiveWaitHead0;
        uint16_t checksum = 0;
        static uint8_t pack_datalen = 0,pack_length = 0,pack_index = 0,pack_msgtype = 0,pack_cmd = CMD_READ;
        static uint8_t index = 0;



    static UsartRecvPackState usart_receive_state = UsartReceiveWaitHead0;
   uint16_t checksum = 0;
   static uint8_t pack_datalen = 0,pack_length = 0,pack_index = 0,pack_msgtype = 0,pack_cmd = CMD_READ,pack_num=0;
   static uint8_t index = 0;

        if(usart_receive_state == UsartReceiveWaitChecksum)
        {   //若收到校验和包
            checksum = 0;
            for(int i = 0; i<pack_length-5; i++) {
                checksum += mUsartReceivePack[i];
            }
            checksum += pack_cmd;
            checksum += pack_length;
            checksum += pack_index;
            checksum += pack_datalen;
            checksum += pack_msgtype;
            if(((data + checksum)&0xff) == 0xFF)            //校验通过
            {
                switch(pack_cmd)
                {
                case CMD_WRITE:
                  if(pack_index==MODBUS_MODE*2)
                  {
                      Uart1GpsRecDebugSend();                    
                      g_com_map[MODBUS_MODE] = 1;
                      return;
                  }
                    //从mUsartReceivePack中读取pack_length长度的字节，放到全局变量中,赋值保存的参数并且存入flash
                    memcpy((uint8_t*)&g_com_map + pack_index, mUsartReceivePack, pack_datalen);
                    if(mUsartReceivePack[0]==1)
                        UpdateProcess(pack_index);
                    //返回一个error状态
                    //SendComMap(pack_datalen,pack_index);
                    save_com_map_to_flash();
                    //delay_ms(100);
                    NVIC_SystemReset();
                    break;
                case CMD_READ:
                    //read包中data字节，即mUsartReceivePack[0]表示数据长度；
                    //从g_com_data结构体中的第index位置读取长度为mUsartReceivePack[0]的字节，发送出来
                    SendComMap(pack_datalen,pack_index>>1);
                    break;
                default:
                    break;
                }
            }
                 if(mUsartReceivePack[pack_datalen-1]==0x66&&data==0xBB)
                  {
                   memcpy(&DMA_RXBuf_BT[0],&mUsartReceivePack[0], pack_datalen-1);
                  }
            usart_receive_state = UsartReceiveWaitHead0;
            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
            mUsartReceivePack[index] = data;
            index++;
            if(index == pack_length-5) {      //如果收到的index与长度相等
        } 
            else if((usart_receive_state == UsartReceiveWaitData) ) 
            {   //若果收到的是正常通讯包
            mUsartReceivePack[pack_index] = data;
            pack_index++;
                  if(pack_index == pack_datalen) 
                  {      //如果收到的index与长度相等
                usart_receive_state = UsartReceiveWaitChecksum;
            }
        } else if(usart_receive_state == UsartReceiveWaitDataLen) {                  //收到指令类型字节
        } 
            else if(usart_receive_state == UsartReceiveWaitDataLen) 
            {                  //收到指令类型字节
            pack_datalen = data;
                  pack_index = 0;
            usart_receive_state = UsartReceiveWaitData;
        } else if(usart_receive_state == UsartReceiveWaitIndex) {                  //收到指令类型字节
            pack_index = data;
            usart_receive_state = UsartReceiveWaitDataLen;
        } else if(usart_receive_state == UsartReceiveWaitCMD) {                     //收到指令类型字节
            pack_cmd = data;
            usart_receive_state = UsartReceiveWaitIndex;
        } else if(usart_receive_state == UsartReceiveWaitLength) {                  //收到长度字节

            pack_length = data;
            pack_index = 0;
            usart_receive_state = UsartReceiveWaitCMD;

        } else if((usart_receive_state == UsartReceiveWaitHead0) && (data == 0x55)) {   //收到第一个包头
        }  
            else if((usart_receive_state == UsartReceiveWaitHead0) && (data == 0x55)) 
            {   //收到第一个包头
            usart_receive_state = UsartReceiveWaitHead1;
        } else if((usart_receive_state == UsartReceiveWaitHead1) && (data == 0xAA)) {   //收到第二个包头
        } 
            else if((usart_receive_state == UsartReceiveWaitHead1) && (data == 0xAA)) 
            {   //收到第二个包头
            usart_receive_state = UsartReceiveWaitMsgType;
        } else if ((usart_receive_state == UsartReceiveWaitMsgType) && (data == 0x3)) {
            usart_receive_state = UsartReceiveWaitLength;
            pack_msgtype = data;
        } else if ((usart_receive_state == UsartReceiveWaitMsgType) && (data == 0x41))
            {
            usart_receive_state = UsartReceiveWaitDataLen;
        
        }
        else {
            usart_receive_state = UsartReceiveWaitHead0;
            pack_index = 0;
            pack_length = 0;
        }
    } else if(gps_prase_flag)
    {
        static uint8_t index = 0;
//GPS解析数据
//   static ST_BLERecv BLE_recvive;
        GGA_DataStruct jdrecv,wdrecv,Posstate;
        
        //接收数据开始分析
        mUsart2ReceivePack[index]  =  data; //char数组传进来参数data
        mUsart2ReceivePack_before  =  mUsart2ReceivePack_now;
        mUsart2ReceivePack_now=data;
        index++;
        if( mUsart2ReceivePack_before == 0x0D && mUsart2ReceivePack_now==0x0A )//接收数据到“0x0D 0x0A”结束
        {
            //解析该条GPS报文
           
            analysis_num=sscanf((char*)mUsart2ReceivePack,"$%[^,],%*[^,],%[^,],%*[^,],%[^,],%*[^,],%[^,],%*[^,],%*[^,],%*[^,],%*[^,],%*[^,],%*[^,],%*[^,],%*s",gps_header,wdrecv.m_pData,jdrecv.m_pData,Posstate.m_pData);
            if(!memcmp(gps_header,"GNGGA",5))
            { 
                if(g_com_map[MODBUS_MODE])
                    LOG_INFO(TRACE_MODULE_APP,"%s", mUsart2ReceivePack);
                wd=strtod(wdrecv.m_pData,NULL);
                jd=strtod(jdrecv.m_pData,NULL);
                pos_state=atoi(Posstate.m_pData);
            } else {
                wd=0;
                jd=0;
            }
            index = 0;
            blink_led(&gps_success_state);
            if(pos_state!=0)
            {
                //4g.jd=jd;
                //4g.wd=wd;
                gps_timeout_flag=1;//不超时接收状态
                gps_need_data_flag=0;//接收数据完成
                gps_wait_count=0;//清0接收状态
//      gps_enable_flag=0;//收到有效数据关闭GPS
            }
            //memset(mUsart2ReceivePack,0,sizeof(mUsart2ReceivePack));
            memset(wdrecv.m_pData,0,sizeof(wdrecv.m_pData));
            memset(jdrecv.m_pData,0,sizeof(jdrecv.m_pData));
            memset(Posstate.m_pData,0,sizeof(Posstate.m_pData));
            index=0;
            mUsart2ReceivePack_before=0;
            mUsart2ReceivePack_now=0;
        }
    }
		
}