General AVR info

AVRs are 8-bit RISC micro-controllers produced by ATMEL corporation. They are well featured and flexible controllers, suitable to many tasks. There are many members of the AVR family - see Atmel's AVR web site for the current range.

AVR stands for

	AVR = "Alf (Egil Bogen) and Vegard (Wollan) 's Risc processor"

Within CSE, a number of AVR chips are in use. However the principle ones are:
ATmega64, ATmega32 and the ATmega323, AT90S1200
Other members of the family have been used, including the AT90S8535, the AT90S2313 and the ATmega8. Generally speaking, code written for one device will operate on the others.

General AVR Information data sheets on the AVRs used here, info and links to compilers, assemblers, some tools and software
Information on AVR programmers
AVR boards designed and used in CSE There are several boards that have been designed that are now 'standard technology' within the School. These often form the basis of projects
Some trouble shooting info on AVR's

C Language

AVR GCC for Windows.
A local copy of the binary WinAVR-20030424-bin-install.exe - 12Meg can be found here
The home-page for this is at Sourceforge http://sourceforge.net/projects/winavr/

AVR GCC for Linux.
A newer version of the binaries can be found here
This is an RPM distribution that works correctly under RedHat 9.0 and Fedora Core 2.
To install, something like this should work:
rpm -i *rpm

There is another site that is new to me but is probably worth a look:
http://cdk4avr.sourceforge.net/.
It has versions of many dev tools for the AVR, and is under active maintenance at Dec 2004 as I write this.

Assembly Language

This section is somewhat old and is Linux-centric.

Windows 98/2000/XP users will be better suited to investigate AVR Studio. This is Atmel's AVR developmnet tool which includes Assembler, simulator and an IDE.

avra-0.7.tar.gz An assembler for AVRs (this is the one Phil normally uses)
tavrasm1.17.tar.gz An assembler for AVRs
revava-0.3.tar.gz An disassembler for AVRs
AVR_instructions.ps.gz A largish document describing the assembly instructions for the AVR in detail - cycles, timing etc