My answer is just for statistical purpose. In recent past I have programmed PIC16C71 using JDM programmer with Winpic. No external power, Vpp was generated from serial port. My motherboard is Intel D815EPFV. On 1/13/06, Maarten Hofman wrote: > Rochester, 13 januari 2006. > > There can be differences in the programming protocol, so therefore > your software should be able to handle the C part. Also, in Myke > Predko's book I read that OTP generally needs more power and a more > stable voltage, which implies that using a programmer that draws its > power from a serial port might be a bad idea, even if that programmer > works fine with F parts. -- Chetan Bhargava Web: http://www.bhargavaz.net Blog: http://microz.blogspot.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist