Bob Axtell wrote : > > Just set an org at 03fff, and install the instruction. > Try it in MPLAB, compile it, then look at the PGM > array. It will be right there. > > --Bob Maybe check how the programmer handles this. I guess that any programmer that knows what it's doing, would first read the value from h'3FFF' and then add that to the code from the HEX file (so it will be written back). Check that the programmer realy uses the value from HEX file (if any) instead of the read value (that we know is wrong) from the chip itself. Also remember to comment out the ORG and RETLW from the source, or you'll end up with wrong cal values if you use another 12F675 then the one you're using right now... Jan-Erik. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist