> I found that > the code, after it was split, worked on all chips marked: > > PIC18F458-I/P > 0234HQB > > BUT didn't work on all chips marked: > > PIC18F458-I/P > 0303OUE Those are different date codes. You should persue this with Microchip via your local FAE. Keep in mind that this may still be a fault in your code if it's using the chip out of spec. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body