AN INTRODUCTION INTENDED FOR PEOPLE WITH NO PRIOR AVR KNOWLEDGE - AVRFREAKS.NET
2
Newbie's Getting Started Guide
This page is intended for those of you that are totally new to the AVR
Microcontrollers!
Starting with a new uC architecture can be quite fustrating. The most difficult
task seems to be how to get the information and documentation to get the first
AVR program up running. This tutorial assumes that you do not yet own any AVR
devices or AVR development tools. It also assumes that you have no prior
knowledge of the AVR architecture or instruction set. All you need to complete
this tutorial is a computer running some flavour of the Windows operating
system, and an internet connection to download documents and files.
Preparing your PC for AVR Development
Let's make an easy start, and download the files that we will need later on. First
you should download the files to have them readily available when you need
them. This could take some time depending on your internet connection.
Download these files to a temporary folder on your computer. ( e.g. C:\Temp ):
All files are included in the files-folder with exception of AVR-studio which can be
downloaded from Atmels website.
http://www.atmel.com/AVR/
This file contains the AVR Studio 4 Program. This program
is a complete development suite, and contains an editor
and a simulator that we will use to write our code, and
then see how it will run on an AVR device
This file contains the Assembly Sample code you will need
to complete this guide.
This is the Datasheet for the AT90S8515 AVR
Microcontroller. This is a convenient "Getting Started"
device. For now you don't have to worry about the
different types of AVR micros. You'll see that they are very
much alike, and if you learn how to use one (eg. 8515),
you will be able to use any other AVR without any
problems.
This is the Instruction Set Manual. This document is very
useful if you want detailed information about a specific
instruction.
When you have downloaded the files, it is time to install the software you need.
Step 2. Installing AVR Studio 4
AVR Studio is also available in a version 3. We will use AVR Studio 4 since this is
the version that will eventually replace version 3.
Important note for people using Windows NT/2000/XP
You must be logged in with administrator rights to be able to successfully install
AVR Studio. The reason is that these Windows systems have restrictions
regarding who can install new device drivers!
Installation:
1. Double click on the AVRSTUDIO.EXE file you downloaded. This file is a self
extracting file, and will ask where you want to extract the files. The default
path points to your "default" temp folder, and could be quite well "hidden"
on your hard disk, so make sure to read and remember this path, or enter
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