Gonzalo Jimenez wrote:

> I'm worrking with a 16F876A, I've made a macro following datasheet
> instruction to read and write EEPROM, but I guess there is something really
> wrong,

Perhaps, if your code isn't *tooo* long, you might post it ?
Don't forget the _CONFIG settings !

> I program the PIC, the program runs acordingly, then when I try to
> read the PIC to see if any change happened in EEPROM I can not do that
> because it says that it's code protected...

What is "it" ?
And, of course, it just might be code protected !

> what I guess is that I'm
> writing in FLASH enstead of EEPROM, but I suppose code found in microchip
> datasheet is working good... now I doubt it :(

I don't think it could be *that* wrong...

> I know if a PIC is code protected I can not over write it,

You can always erase a code protected PIC, and the programmer *has*
to erase the PIC to be able to re-program anyway.

> but I also know
> that there is a way to erase it compleatly (all data including fuses) but
> my programmer can not do that,

It *must* be able to do that. If not, it could only program each
chip once.

> is there a simply way to acomplish this? I
> mean, to erase a chip?

Most programming software has a special function to do this.

> Well, thanks in advance, I hope you can give me some advices...

It's hard, you don't tell us what programmer you use, what software you use,
what your code look like and so on. A little more info and I'm sure this
will be resolved quite fast :-)

Jan-Erik.

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