>Hey, Roland!! > >I don't doubt what you're saying - I'm only giving you what I've >personally experienced. My programmer IS a high-voltage programmer and I >DID need to bring RB4 low to make my programmer handle the '628 chips. >It is also discussed in the errata sheet (DS80073F) on Page 9, note 3, >under "workaround". This is consistent with my experience. Granted, it >MAY not apply to your case - it definitely did apply to me! IIRC all the devices that had LVP seemed to have problems with the early versions. It was almost as though there was no lockout of the LVP pin when using HVP, so you had to hold the LVP enable pin in the program mode state to allow HVP. I suspect the problem is probably fixed for all current production, which may be why the ICD2 doesn't worry about connecting the LVP pin. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist