>> for some reason Mplab doesn't recognize >> #ROM 0x2100={0x01,0x02,and so on} using CCS compiler >> That's what the reference manual says to use (it's downloadable from ccs.) Did you try both "#ROM" and "#rom"? The manual has different cases in different places (not so impressive.) BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist