I forgot to mention the USBasp variant I use. One of our senior electrical engineers made a few changes, such as dropping the zener diodes and adding a buffer. I have tested this programmer to work with devices powered as low as 1.8 volts. Of course you can pick and choose bits from the two schematics if you like.
http://eecs.oregonstate.edu/education/products/usb_prog.2/docs/usb_prog.2.schematic.pdf -Steve On Sunday 22 February 2009, swm wrote: > The USBasp is a USB programmer supported in AVRDUDE since version 5.2. The > firmware is open source (runs on an AVR) as is the schematic. Maybe people > provide gerber files so that you can more easily make you own, and a few > even sell their own designs based on the USBasp. > > You may easily build your own or buy one already made. > > http://www.fischl.de/usbasp/ > > -Steve _______________________________________________ AVR-chat mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/avr-chat
