Tony, > Knowing MPLABs bug history, I wouldn't count on it ;-) Oh Ye of little faith! :-) >> What if you change the "End Address" when programming? Would this do >> it? > > MPLAB will 'remember' the OSCAL and BG bits and restore them after > programming. > > I just verified this by writing 0x0000 to the cal location, but MPLAB > still wrote 0x3484 which was the original cal value. Yes. I did a barrage of similar tests this morning and could not trip it up. Now on with the coding! My first A/D project and first to actually use TMR0 instead of delay loops! I don't need to, but I thought I gotta start sometime! :-) Regards, Sean -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body