With a 18F4320, the liner script includes: #DEFINE _CODEEND _DEBUGCODESTART - 1 #DEFINE _CEND _CODEEND + _DEBUGCODELEN #DEFINE _DATAEND _DEBUGDATASTART - 1 #DEFINE _DEND _DATAEND + _DEBUGDATALEN Question is where are the following defined? _DEBUGCODESTART DEBUGCODELEN _DEBUGDATASTART _DEBUGDATALEN I am trying to add a data bank. I have tried searching both MCC18 and the project folder with no success. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .