Atmel JTAGICE mkII Quick Start Guide

Introducing the connection method of AVR JTAGICE mkII, including connecting to the debugWIRE interface and ISP interface of the target board.

Brand: Atmel
Category: Other device
Document type: Quick Start Guide
Language: English
Pages: 5
File format: PDF
File size: 98 KB
Published: 08 May, 2012
Updated: 30 September, 2023
MD5 checksum: 99AAF8646E2EF0B9A1BD3381533F96CE
PDF: Atmel JTAGICE mkII Quick Start Guide PDF

About this manual

The JTAGICE mkII is Atmel’s on‑chip debugging tool for AVR microcontrollers. It supports the traditional JTAG interface, the debugWIRE interface, ISP programming, and communication via RS‑232 or USB. The guide explains how to connect the debugger to a target board, configure the debugWIRE and ISP interfaces, and set up the JTAG connections.

Detailed wiring tables and pin‑out diagrams show the required connections for each interface. The guide also covers power requirements, how to re‑enable ISP after using debugWIRE, and steps to connect the JTAGICE mkII to AVR Studio before starting a debug session.

What's inside

Introduction
Connecting to a target board
debugWIRE interface
ISP interface
Re‑enabling ISP
JTAG interface
Connecting to AVR Studio
Supported devices
Power and voltage requirements

Specifications

Power supply voltage	9 V to 12 V
Reset line pull‑up resistor minimum	10 kΩ

Frequently asked questions

What is the minimum pull‑up resistor value for the RESET line when using debugWIRE?

The pull‑up resistor must be at least 10 kΩ.

How can I re‑enable the ISP interface after using debugWIRE?

Open JTAGICE mkII Options in AVR Studio, go to the Connections tab, and click “disable debugWIRE”. The ISP interface will then be enabled.

What voltage range is required to power the JTAGICE mkII?

The device requires a supply voltage between 9 V and 12 V.

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