Startup code?

adamwynne · Guest

I have my first protoype PIC board, and it works!!! (after faff with the xtal and psu and having to go out and buy a 'scope!)

Now, I'm using the ICD2 thing so have an RJ45 socket on board.

If I use the ICD to program the device, is there a CCS compiler command to get it to start on the reset timer? Cos it works fine on debug using the ICD but doesn't do anything on normal power up with the wire not in the RJ45.

Also, should I put an RC on the reset line? I thort the whole point of the start timer was to not need any pullups or anything?

Its a 16LF877A running at 3.3V, 9.804MHz

TIA

Adam.

Mark · Joined: 07 Sep 2003 Posts: 2838 Location: Atlanta, GA

You have to configure it not to be in debug mode. Usually you would comment out this line

Haplo · Joined: 06 Sep 2003 Posts: 659 Location: Sydney, Australia

And make sure you don't have the fuse DEBUG in you #fuses statement. If you do, change it to NODEBUG.

Guest · Posted: Thu Sep 16, 2004 2:25 am

Weeelll.. I tried that. Still no joy. Is there a list of the meaning of all the fuses somewhere? The header file is a bit vague; I mean, it lists them, but doesn't say exactly what they do.... Sure, I can guess, but maybe thats why its not working?

Also, do I have to pull up the reset line or can I leave it floating? Yes, yes, I know, RTFM....

<pause>

OK, I've R'd the F-ing M.... Seems I need an RC network on my MCLR pin. Ah well. That would explain why it doesn't fire up without the ICD cable plugged in....

Haplo · Joined: 06 Sep 2003 Posts: 659 Location: Sydney, Australia

You shouldn't need a RC network on the MCLR pin. Pulling it up with a resistor should be enough.