AVR309 USB - RS232 application note
2005-04-11 by Geo
Hi, Apologies if this has already been mentioned but a search of the yahoo list did not find avr309. Looks to me like a work of art - 1 small common avr, 1 crystal (ok overclocked) and a 1.5k resistor - virtually all that is required for a USB interface. Do not bother with the original authors web site - it no work. But there is a mirror at:- http://www.cesko.euro-science.net/ pdf from:- http://www.mikrocontroller.net/attachment.php/86320/AVR309_doc2556.pdf all files from (watch any word wrap):- <http://www.avrfreaks.net/index.php?module=FreaksFiles&func=viewFile&id=9 63&showinfo=1> a modular (c and asm) implementation here with two example applications including circuit diagrams and source:- http://www.obdev.at/products/avrusb/index.html Well I am impressed anyway... luck, George Smith