Atmel STK502 manual Troubleshooting Guide

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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

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Contents STK502 User Guide Page Table of Contents Technical Support Section Introduction STK502 Top Module for STK500Features Supports the ATmega169 with Built-in LCD ControllerSection Using the STK502 Top Module Connecting the STK502 to the STK500 Starter KitPlacing an ATmega169 onSTK502 must be used ConnectorsAre not duplicated on the STK502 2.1 PG0 PG5 2.2Programming Programming the ATmega169In-System High-voltage High-voltage Parallel ProgrammingJtag Connector LCD Display ConfigurationSTK502-PCB or in Complete Schematics 11.Pin out for LCD Headers On the Display12.Jumper to connect COL1 to COL2 AVR Sensor 1.2 PF10 Switch ATmega169Section Troubleshooting Guide Troubleshooting GuideTroubleshooting Guide Section Technical Specifications System UnitOperating Conditions LCD-displayLayout for the STK502 LCD-display STK502 LCD Bit Mappings Number TwoNumber Three Number FourNumber Six Bit Mappings for LCD Alphanumeric Digit Number SixNumber Seven Bit Mappings for LCD Alphanumeric Digit Number SevenSection Technical Support Technical Support Section Complete Schematics Schematics, 1 Schematics FigureSchematics Assembly Drawing, 1 Complete Schematics Atmel Headquarters