11 Replies Latest reply on Jul 12, 2019 12:09 AM by AnkitaS_51

    USBUART can not receive data from HOST(PC)

    muto_1207481
    muto_1207481 Jun 26, 2019 2:14 AM

      Like a Hyper Terminal terminal as COM test software on HOST.

       

      Data receve from the USBUART is work well.(check with terminal software)

        ・The sample code is as follows

      　if(CHP.TUACHON != CHP.TUACH_BK) 

      　{

      　　CHP.TUACH_BK = CHP.TUACHON;

      　　if(CHP.TUACHON)

      　　　　USB_TxData("T-ON");

      　　else

      　　　　USB_TxData("T-OFF");

      　　}

      　}

       

      void USB_TxData(char *Str)

      {

      while(USBUART_CDCIsReady() == 0);

       

      USBUART_PutString(Str);

      }

      ---------------------------------------------------------

      Received data  chack routine is as follows

      ---------------------------------------------------------

      while(1) {

         if(USBUART_DataIsReady() > 0)

              {

            USB_TxData("Get data=");

            USBUART_GetAll(&buff[0]);

            }

      }

       

      The problem is that this USBUART_DataIsReady () functionIt does not return a value of greater than 0.

       

      I look forward to good advice.  Thank you