jana1972@centrum.cz wrote 2011-10-22 15:22:

> Thanks for your reply
> I thought that PICkit3 works as
> a debugger and a programmer

Yes, if you have a PIC that has support for in-curcuit debugging.
Do you ?

>
> So, when I compile a sample program
> I must upload to ( program) a microchip, in my case to PIC16F628A.
> Only after that I can debug it.

I think that most smaller PICs such as the 628A need a special
header (a special version of the processor with extra pins so that
debugging can be done without loosing any standard pins).

Check the docs for the PICkit3 !

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