USB support for Atmels AT90USB (1287) microcontroller
Firmware is compatible with avr-gcc version 3.4.6 and 4.1.2 
Enumeration (with Linux host) and basic data transfer (LibUSB 0.1.12) works fine now!
A simple example program for Linux console is included.
Basic documentation is available on my homepage, see http://www.ssalewski.de/Misc.html
License: GPL-2
S. Salewski 2006/2007

USB Documentation:
H.J. Kelm, USB 2.0, FRANZIS 
J. Axelson, USB Complete, Lakeview Research
www.beyondlogic.org/usbnutshell/usb-in-a-nutshell.pdf
Atmel: Datasheet for AT90USB
Atmel: AVR329, USB Firmware Architecture

Files:
AT90USB-Errata.txt	Some remarks about errors or unclear statements in AT90USB1287 datasheet
com_def.h		Constants which are used by firmware and host application program		
daq_dev.c		Function for data acquisition using the intern ADC (port ADC0)
daq_dev.h		
defines.h		Project specific constants
macros.h		Some general macros
Makefile		Makefile: type "make" to generate all binary files and "make dfu" to upload firmware
README			This file
ringbuffer.c		Simple ring buffer (FIFO) for buffering ADC data 
ringbuffer.h		
SUDAP.c			Example firmware application: Data acquisition (port ADC0) and control of digital port B
SUDD.c			Example host application: Console based data acquisition and control of digital port B
usart_debug.c		Functions for debugging over serial port	
usart_debug.h		 	
usart_drv.c		Access to serial port
usart_drv.h		
usb_api.c		This file contains constants and functions which need modifications
usb_api.h		  to customize the software for a specific device
usb_drv.c		Basic USB functions for AT90USB controller
usb_drv.h		USB macros, basic low level register stuff
usb_isr.c		Interrupt service routines
usb_requests.c		USB (standard) requests, enumeration
usb_requests.h		
usb_spec.c		USB datastructures and constants
usb_spec.h		

gen_postscript.txt	Script for generating postscript from sources for printout using enscript
gen_pdf.tex             Small LaTeX file using listings package for pretty-printing sources
AT90USB-20070910.tar.gz All source files in compressed form
AT90USB-20070910.zip    All source files in zip compressed form
sources.ps.gz		All source files preformated for printout (enscript)
sources.pdf		All source files preformated for printout (pdflatex)