Harold Hallikainen wrote: > Running a 18LF6722 at 3.3V, I found I could not reprogram it with the > ICD-2 once I set the code protect. We modified our circuit so the PIC gets > its voltage through the programming header, then told the ICD-2 to supply > Vdd, which it does at 5V. Once the chip is programmed, we put a jumper on > the programming header that provides 3.3V to the PIC. At 3.3V, we are > still able to bootload the PIC, just not program it with the ICD-2, due to > the bulk erase issue. But you're saying the bulk erase is only a necessity because you've got code protect set here, yes? -- Timothy J. Weber http://timothyweber.org -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist