Old analog guy needs help with PIC16F57

[Bruce]

Interesting. I opened the same .hex file, and it looks llike the attached.

hs osc, wdt off, protect off.

Sounds like something odd going on with your programmer, or you're not
selecting the correct PIC?

[yankee]

OK, now I'm really confused. My snappy is attached and compared to yours.

[Bruce]

What other options do you have enabled/disabled? See attached.

[yankee]

I compared yours to mine and the only thing that I didn't have checked was "reread file before programming." I made mine match yours, tried again and still nothing. I did a read and the configuration on the IC is still 0000- 0ffa.

When you do a read, what do you get on your configuration?

[Bruce]

When you do a read, what do you get on your configuration?

0ffa, which is correct.

Have you tried another resonator or crystal?

You might also try XT OSC - just in case you're over-driving the one you have.

I use resonators for pretty much everything, and have never had a single problem
with one, but I've never used the type you're using.

Trying a different resonator or crystal could save you a lot of work.

And if you're using a bread board it wouldn't hurt to meter every single connection.

[yankee]

Different resonators brought the IC to life.

~ Dave