Atmel STK502 manual 1. Troubleshooting Guide

Models: STK502

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Troubleshooting Guide

Troubleshooting Guide

Table 3-1.Troubleshooting Guide

Problem

Reason

Solution

 

 

 

 

Cables not connected

Please refer to Figure 2-7for

 

properly.

correct Parallel Programming setup.

 

 

 

 

STK500 target voltage

Please refer to the ATmega169 data

Parallel Programming

error.

sheet for the Parallel Programming

 

 

 

Voltage limits. Adjust the target

does not work.

 

 

 

 

 

 

voltage on the STK500 board

 

 

 

 

 

 

 

 

accordingly.

 

 

 

 

The TOSC switch is not

Set the TOSC switch in the XTAL-

 

correctly set.

position.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The RESET-signal is not

Connect PG5 and RST with a

 

 

 

 

 

No programming works.

connected to the

jumper. See Section 2.2.2.2 RST.

 

ATmega169.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: 1. See the application note “AVR065: LCD Driver for the STK502 LCD” on how to con- trol the LCD-display or the the application note “AVR064: STK502 – A Temperature Monitoring System with LCD Output”.

3-2

STK502 User Guide

2528A–AVR–11/02

Page 20
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Atmel STK502 manual 1. Troubleshooting Guide