Problem running 12F629

edi · Joined: 22 Dec 2003 Posts: 82

I use PCW 3.184 and ICD-U40 latest version.
I program the device 12F629 but nothing happend.
I tried simple program - just to turn on a LED but nothing.
It is possible that I erase the calibration value, but does it cause that nothing will happened in the board?
I see all the time ~1MHz on pin 3, Why? and how can I stop it. cause I need this pin for my application

the definitions:
#include <12f629.h>
#fuses NOWDT,INTRC, NOCPD, NOPROTECT, MCLR, NOPUT, BROWNOUT
#use delay(clock=4000000)

Any suggestion?

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Here is a demo program that I posted for the 12F629.
It just blinks two LEDs.
http://www.ccsinfo.com/forum/viewtopic.php?p=2862#2862

languer · Joined: 09 Jan 2004 Posts: 144 Location: USA

In your #fuses statement you want to change:

#fuses NOWDT,INTRC, NOCPD, NOPROTECT, MCLR, NOPUT, BROWNOUT

to

#fuses NOWDT,INTRC_IO, NOCPD, NOPROTECT, MCLR, NOPUT, BROWNOUT

The change is in bold, this same thing hit me not so long ago (PITA).

Do you really need MCLR? You get one more input (no output though) if you declare NOMCLR.