充电桩设计之4G模块 初始化

      int dx_lte_init_check(void)
      {
         //rx at command response from 4g module
         //printf("uart2 rx at command *ext* response from 4g moduler\r\n");
         //uart2_dma_send_data("uart2_dma_send test\r\n",strlen("uart2_dma_send test\r\n"));
         uint32_t flags = 0;
          flags = EVENT_FLAGS_UART2|EVENT_FLAGS_UART2_TX_COMPLETE;
     	printf("*****dx_lte_init_check\r\n");
          flags = osEventFlagsWait(evt_id_uart, flags, osFlagsWaitAny, osWaitForever);
         printf("*****dx_lte_init_check cb osEventFlagsWait flags =0x%08x\r\n",flags);
         if(status_4g == -1)
          {
             uint8_t rcv_buf[30]= {0};
             uint8_t rcv_len = 0;
             int ret = 0;
             uart2_rec_at_cmd_response(rcv_buf,&rcv_len);
             printf("rcv_buf=%s rcv_len=%d\r\n",rcv_buf,rcv_len);
              ret=strncmp(( const char *)rcv_buf,MODULE_4G_PDPDEACT,strlen(MODULE_4G_PDPDEACT));
             if(ret==0)
              {
  
 

  
 
 

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原文链接：blog.csdn.net/xushx_bigbear/article/details/122871643