Hello.

I builded Propic2 programmer schematic it's date 3 September 1999 and I'm using V2.97C.

But it's not writing to some of the 16F84 chips, producing "Writing Error in mem ...".

I programmed 25 chips and two of them has errors.

When I test old program and programmer there is no problem. Old one is writing all of them.

Where is the problem...?