Contents

1. STK505 Top Module 1.1. Features 1.2. Getting Started 1.2.1. Hardware Overview 1.2.1.1. ZIF socket 1.2.1.2. DIP socket 1.2.1.3. Low voltage programming connectors 1.2.1.4. High voltage programming connectors 1.2.1.5. Port configuration switches 1.2.1.6. Crystal sockets 1.2.2. Mounting the STK505 1.3. Clock Sources and Reset 1.3.1. The Clock Switch 1.3.2. The Reset/PORTB switch 1.4. Programming the AVR 1.4.1. Introduction 1.4.2. In-System programming 1.4.3. High Voltage Programming 1.4.3.1. High Voltage Programming the ATtiny24 1.4.3.2. High Voltage Programming the ATtiny26 1.5. Troubleshooting 1.5.1. Programming problems 1.5.2. General problems 2. Legal Disclaimer