Hmmm,that's interesting since if erasing a part can accomplish the band gap erase...and...and...and!Anyway thanks.I'll study that and see it's usefulness to me.
Anyway and also,I soldered in a new 629...it's my programmer.Replaced all the relevant parts relating to the programming voltage(wasn't getting the 13 volts).Now able to erase with ease,nice and erased and can see that to be true...BUT! once I run it to program I get an error at 0000;without exception.Oy vey!I think it's time to start researching programmers.This is the third time I've replaced parts on the EPIC.I know that's not your programmer of choice but ...it used to work,so...Sometimes I recall fondly the days I toggled in ASM with 8 switches on a 6502...Nah!