> I also found one more problem with mplab 6.22. > Using same code with mplab 6.22 will generate different > timing on timer0 then mplab 6.30 does. We've probably all had our moments with MPLAB, but that's an interesting one. Are you talking about Stopwatch ? BTW, I found my own little gotcha with 6.0.20 the other day. "skpnz" macro had been mis-typed as "sknz" but there was no compilation (ie red fail) MPASM error. "Found label after column 1. (SKNZ)" is in the .err file though. As this is code being moved from the F628 to F452 I'm on the lookout for errors, and will now pay more attention to MPASM's assembly report, even if the assembly appears to have been successful andlw 0x01 -> andlw 0x1 skpnz -> btfsc 0xfd8, 0x2, 0 bra sxno -> bra 0x79e andlw 0x01 -> andlw 0x1 sknz -> not compiled bra sxno -> bra 0x79c -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads