Em 2/5/2012 19:47, alan smith escreveu: > Flash part...so should be able to reprogram it. > > Using an ICD, program it...drop it in circuit, works fine. > > Try to reprogram it....has errors always at address 0x04.data didnt match= ...so it crashes. Any ideas? Did you try to erase the part before reprogramming it? I remember that some old version of MPLAB IDE didn't erase the part automatically. Isaac --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .