Hardware Description

AVR STK500 User Guide 3-27

1925C–AVR–3/03

3.11.2 PROGRAM Push

Button

Future versions of AVR Studio may upgrade the master microcontroller on STK500.

AVR Studio will then detect old software versions of STK500 and update the Flash pro-

gram memory of the master microcontroller. To do this, the user is required to push the

PROGRAM button when powering on STK500. AVR Studio issues instructions on how

to perform the upgrade during the upgrade process.

3.11.3 Main Power LED The red power LED is directly connected to the STK500 main power supply. The power

LED is always lit when power is applied to STK500.

3.11.4 Target Power LED The target power LED is connected to VCC lines (VTG) on the target AVR devices in the

sockets. The target power LED is lit when power is applied to the target AVR device.

3.11.5 Status LED The PROGRAM LED is a 3-color LED. During programming, the LED is yellow. When

the target AVR device is successfully programmed, the LED will turn green. If program-

ming fails, the LED will turn red to indicate that programming failed. When programming

fails, check the troubleshooting guide in Section 7 on page 7-1. During start-up, the sta-

tus LED will shift from red, through yellow, to green to indicate that the master

microcontroller is ready.

Hardware Description

3-28 AVR STK500 User Guide

1925C–AVR–3/03

AVR STK500 User Guide 4-1

Rev. 1925C–AVR–3/03

Section 4

Installing AVR Studio

AVR Studio, with its Integrated Development Environment (IDE), is the ideal software

for all AVR development. It has an editor, an assembler and a debugger and is front-end

for all AVR emulators and the STK500 starter kit.

To install AVR Studio, insert the supplied Atmel CD-ROM databook in the computer and

navigate to “Products → AVR 8-bit RISC → Software”. Right-click with the mouse on the

“AVRstudio.exe” file and select “save link as”. Select an empty directory and save the

file.

Execute the “AVRstudio.exe” file; this is a self-extracting file that will extract all required

files to the current directory. Execute the “Setup.exe” file; this will guide you through the

setup process.

Note: AVR Studio, version 3.2 or higher, is required for STK500 support.

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Technical Document