Hi all,

I'm a beginner using Microchip PIC's and I have a problem with one
design I'm working with.
I have a JDM programmer and I use ICProg and PonyProg to program my
chips (now using PIC16F628).
The problem is that sometimes ICProg will give me error on the simplest
program, but PonyProg will write it, but when I put it into the
schematic, the program is not running (a simple led blinking program). I
have managed to make it work, but after some time, when writing another
version of the program, it didn't work anymore. Now I don't know which
could be the factors that influence this behaviour. Also, if I enable
"VCC control for JDM" in ICProg, it will program the chip successfully,
but the program won't run.
Does anyone of you has any idea of why might this happen ?
Thank you very much for your answers.

Lucian

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