I agree, but we should be able to get a checksum for the whole chip so the vendor doing the programming knows they got all the data correctly (no dropped records, etc.). Thanks! Harold > > Intel HEX files only have a record Checksum at the end of a line. > Motorola HEX files may include a line count, but only have record > checksum. Other HEX file formats only have record checksums. > -- -- FCC Rules Updated Daily at http://www.hallikainen.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist