Runing a PIc16F876A

[malc-c]

To confirm the pic is programmed try reading it back and dumping the HEX to a file, and then read that file in notepad. If that's fine then as Steve has varified the code works it must be hardware related

1) - check that you are using the correct crystal for timing
2) - check that the two capacitors are the correct values for that crystal (33pf - 22pf)
3) - check that the supply voltage is regulated to 5v (5.5v max)
4) - place a 0.1uF decoupling capacitor accross the supply as close to the PIC as possible.

[lerameur]

I removed the Bod_on,
the input to the chip is 4.97 v.

I posted a picture of my circuit here,
there is little blue wire near the Lm7805, its not connected to anything, I blew on it and it rolled off the breadboard

http://www3.sympatico.ca/lerameur/

[mister_e]

MCLR pin must be set High, not Low...

Keep your Crystal capacitor pins as short as possible. Most of the time you can remove them when using a breadboard.... the breadboard capacitance is often enough.

[paul borgmeier]

pin 1 MCLR appears to be connected to GND - try moving it to +5 V

EDIT - as always, Steve beat me by a couple minutes

[lerameur]

a my ,all this time for a MCLR on low... I looked at it so many times...
its Working on high.
Thank you

[mister_e]

............. Sorry