한국어 English Chinese Russian
bannerbar
Support > Technical Support

Q&A



Your information is protected by SSL.
No. 263 Re: Wait for DSR (Data Set Ready) 2006-05-25

EZL-200F doesn't support DTR(DSR in terms of user device).
We will add the function next modification of EZL-200F firmware.

Thank you.

> cpot wrote:
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> I have a weather station software, connected to the ez200F that waits to get DSR = 1, but it never receive this signal and then send a 'Connection timeout'
>
> Does ez200F needs to have a specific configuration to receive this signal ?
>
> Thanks
> Christopher
> ps : below a part of the code
>
> if (!GetCommState (ws, &dcb))
> {
> printf ("> Unable to GetCommState");
> exit (0);
> }
>
> dcb.DCBlength = sizeof (DCB);
> dcb.BaudRate = BAUDRATE;
> dcb.fBinary = FALSE;
> dcb.fParity = FALSE;
> dcb.fOutxCtsFlow = FALSE;
> dcb.fOutxDsrFlow = FALSE;
> dcb.fDtrControl = DTR_CONTROL_DISABLE;
> dcb.fDsrSensitivity = FALSE;
> dcb.fTXContinueOnXoff = TRUE;
> dcb.fOutX = 0;
> dcb.fInX = 0;
> dcb.fErrorChar = FALSE;
> dcb.fNull = FALSE;
> dcb.fRtsControl = RTS_CONTROL_DISABLE;
> dcb.fAbortOnError = FALSE;
> dcb.XonLim = 0;
> dcb.XoffLim = 0;
> dcb.ByteSize = 8;
> dcb.Parity = NOPARITY;
> dcb.StopBits = ONESTOPBIT;
> dcb.fNull = false;
> dcb.XonChar = NULL;
> dcb.XoffChar = NULL;
> dcb.ErrorChar = NULL;
> dcb.EofChar = NULL;
> dcb.EvtChar = NULL;
>
> if (!SetCommState (ws, &dcb))
> {
> printf ("> Unable to SetCommState");
> exit (0);
> }
>
> commtimeouts.ReadIntervalTimeout = 0;
> commtimeouts.ReadTotalTimeoutMultiplier = 0;
> commtimeouts.ReadTotalTimeoutConstant = 0;
> commtimeouts.WriteTotalTimeoutConstant = 0;
> commtimeouts.WriteTotalTimeoutMultiplier = 0;
>
> if (!SetCommTimeouts (ws, &commtimeouts))
> {
> printf ("> Unable to SetCommTimeouts");
> exit (0);
> }
>
> for (i = 0; i < 2000; i++) {
> buffer[i] = 'U';
> }
>
> write_device(ws, buffer, 2000);
>
> set_DTR(ws,0);
> set_RTS(ws,0);
>
> i = 0;
> do {
> sleep_short(10);
> i++;
> } while (i < INIT_WAIT && !get_DSR(ws));
>
> if (i == INIT_WAIT)
> {
> print_log(2,"Connection timeout 1");
> printf ("Connection timeout> ");
> exit(0);
> }
Writer Sollae Systems Company