USB Programmer

Started by martin de lange July 8, 2003
Microchip released an apnote for the Pickit1 USB powered programmer that needs no external power supply. It uses the USB 5v with a pwm voltage booster to get the vpp voltage up to 9-13v adjustable. It uses an 16c745 at the moment and will do the 8/14 pin chips for now but will probably be updated. I built it in a couple of hours to test the USB part as I am using USB in another project. It worked first time and I definately think it's the best little programmer I have come across and for all those I see always struggling with the little programmer nits - try this!
regards
martin