Table Of Contents
TABLE OF CONTENTS.............................................................................1
STK503 USER GUIDE.....................................................................................................2
INTRODUCTION...............................................................................................................2
Features.......................................................................................................................................2
Known Issues.......................................................................................................................3
Getting Started....................................................................................................................4
Hardware overview...............................................................................................................................4
Mounting the STK503 ..........................................................................................................................5
Placing the AVR in the ZIF socket......................................................................................................5
Programming the AVR....................................................................................................7
In-System Programming (ISP)............................................................................................................7
High-Voltage Parallel Programming (HVPP)....................................................................................8
JTAG Programming...................................................................................................................9
STK503 Clock Sources................................................................................................10
The XTAL switch.................................................................................................................................10
The TOSC switch................................................................................................................................11
The External Memory Interface...............................................................................11
SRAM footprint....................................................................................................................................11
Address latch.......................................................................................................................................12
High address jumpers ........................................................................................................................12
RS-232 Driver....................................................................................................................13
Debugging with JTAGICE mkII ...............................................................................14
Connecting the JTAGICE ..................................................................................................................14
Troubleshooting Guide.................................................................................................15
Programming problems......................................................................................................................15
General problems.....................................................................................................................15
Problem.......................................................................................................................................15
Appendix...............................................................................................................................16
Port Connectors ..................................................................................................................................16
SRAM ...................................................................................................................................................16
Schematic and layout..............................................................................................................17
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