I've been struggling with this for a while, any help is greatly appreciated.
I've got an external device that just sends some bytes in through the serial
port. I've checked that information is actually coming through the serial
port, so the external device is fine. I'm using Codewarrior, so I'm testing
my application using the palm emulator and the device hooked up through the
serial port in COM1. I'm writing the application for Palm III, so I'm using
the old Serial Manager. All my serial port settings should be okay, I've got
the right baud rate, and parity etc. but my SerRecieve call just times out.
Anyone suggest what I could do? Here's my code to recieve the data, and I'm
just trying to display it on the screen right now:
long toReceive = 4;
long numReceived;
long timeout = SysTicksPerSecond (); //1 second timeout
Err err;
Int buff[20];
CharPtr out[20] = {""};
ErrFatalDisplayIf (toReceive > sizeof(buff), "buffer overflow");
numReceived = SerReceive (refNum, buff, toReceive, timeout, &err);
if ( err == serErrLineErr ) {
SerClearErr (refNum);
}
StrPrintF (*out, "%d", buff);
WinDrawChars (*out, 10, 16, 16);
Thanks,
Sean
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