Lock bits

For example, if u program the RSTDISBLE fuse of the ATmega8

Ponyprog version (latest) which i use doesn't allow this blunder to happen, it automatically blocks critical fuses like SPIEN and RSTDISBLE

Arun

thank you pid33 i was not aware of this RSTDIABLE bit will take care while i am programming next time

thanks arun,
Glad lancos took care of that.
I learnt this catch the hard way. I had already rendered two mega8 chips useless by accidentally setting that fuse.They are presently in a somewhat 'COMA' state .i.e. until i find a high voltage paralell programmer to bring them back to real working condition. .

so RSTDISABLE fuse can be override with high voltage or what?

yep, actually setting this fuse is a strict no-no using ISP. this fuse is specifically meant to be set/reset using high voltage parallel programming.

P.S. u can still set/reset the RSTDISBLE fuse by using the SETall/Clear all button on the ponyprog. So stay away from those buttons.

i am using the latest beta, it does not show clear all, setall and RSTDISBLE of atmega32. also SPIEN is not selectable.

i am using the latest beta, it does not show clear all, setall and RSTDISBLE of atmega32. also SPIEN is not selectable.

thats a safety measure !

A beginner/novice might fiddle with the fuse bits and the device might get locked/unusable, ultimately Ponyprog would be blamed, thats why the designer of Ponyprog took the step to protect critical fuses.



Arun