ATI Commands & Rs232 - PIC 18F8722

[newbie_1974]

Hi,

PLEASE HELP!

I'm trying to implement a timeout on serial port if I don't get a character after say 30 seconds. I've looked at the timed_getc() example, this is fine upto 1/2 second but if I increase this it never returns.

I'm using the following to read the ATI response from a modem.

fprintf (rs232stream,"ATI4\n\r");

while (1)
{
c = fgetc (rs232stream);
fprintf (hyperterm, "%c", c);
}

I would love it if I could replace the above with a timeout version which works - many thanks

[PCM programmer]

What about this thread that you started two weeks ago ?
At the end of the thread you said everything is working fine.
http://www.ccsinfo.com/forum/viewtopic.php?t=31209

[newbie_1974]

Hi PCM Programmer,
That wasn't me, but thanks for posting the link. I'm new to PIC programming, I was thinking on the same lines of the example but don't know how to do it.

My question is on the RTCC timer, can you let me have an example of a variable time out function such as: