Freescale Semiconductor metrowerks CodeWarrior User manual

A
Freescale Semiconductor Company
CodeWarrior™
USB TAP Users Guide
Revised 10 March 2005

Metrowerks, and the Metrowerks logo are registered trademarks of Metrowerks Corporation in the United States and/
or other countries. CodeWarrior is a trademark or registered trademark of Metrowerks Corporation in the United States
and/or other countries. All other trade names and trademarks are the property of their respective owners.
Copyright © 2005 Metrowerks Corporation. ALL RIGHTS RESERVED.
No portion of this document may be reproduced or transmitted in any form or by any means, electronic or me-
chanical, without prior written permission from Metrowerks. Use of this document and related materials is gov-
erned by the license agreement that accompanied the product to which this manual pertains. This document
may be printed for non-commercial personal use only in accordance with the aforementioned license agree-
ment. If you do not have a copy of the license agreement, contact your Metrowerks representative or call 1-800-
377-5416 (if outside the U.S., call [phone]).
Metrowerks reserves the right to make changes to any product described or referred to in this document without further
notice. Metrowerks makes no warranty, representation or guarantee regarding the merchantability or fitness of its prod-
ucts for any particular purpose, nor does Metrowerks assume any liability arising out of the application or use of any
product described herein and specifically disclaims any and all liability. Metrowerks software is not authorized for
and has not been designed, tested, manufactured, or intended for use in developing applications where the fail-
ure, malfunction, or any inaccuracy of the application carries a risk of death, serious bodily injury, or damage
to tangible property, including, but not limited to, use in factory control systems, medical devices or facilities,
nuclear facilities, aircraft navigation or communication, emergency systems, or other applications with a simi-
lar degree of potential hazard.
How to Contact Metrowerks
Corporate Headquarters Metrowerks Corporation
7700 West Parmer Lane
Austin, TX 78729
U.S.A.
World Wide Web http://www.metrowerks.com
Sales United States Voice: 800-377-5416
United States Fax: [phone]
International Voice: [phone]
Email: [email protected]
Technical Support United States Voice: 800-377-5416
International Voice: [phone]
Email: [email protected]

3 USB TAP Users Guide
Table of Contents
1 Introducing the CodeWarrior™ USB TAP Emulator 5
What is the USB TAP Emulator? . . . . . . . . . . . . . . . . . . . . . 5
Product Highlights . . . . . . . . . . . . . . . . . . . . . . . . . 6
The Debugging Environment . . . . . . . . . . . . . . . . . . . . . 7
USB TAP Emulator Benefits . . . . . . . . . . . . . . . . . . . . . 7
Target Connections . . . . . . . . . . . . . . . . . . . . . . . . . 7
Operating Requirements . . . . . . . . . . . . . . . . . . . . . . . . 8
Standard Electrostatic Precautions . . . . . . . . . . . . . . . . . . . 8
Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . 8
Operating Temperature. . . . . . . . . . . . . . . . . . . . . . . . 8
Target Requirements. . . . . . . . . . . . . . . . . . . . . . . . . 9
Related Documentation. . . . . . . . . . . . . . . . . . . . . . . . . 9
2 Setting up the USB TAP Emulator 11
Unpacking the USB TAP Emulator . . . . . . . . . . . . . . . . . . . 11
Identifying the Components . . . . . . . . . . . . . . . . . . . . . . 12
Installing the CodeWarrior USB TAP Device Drivers . . . . . . . . . . . . 12
Connecting to the Target and your Host Computer . . . . . . . . . . . . . 14
Debug Port Connector Information . . . . . . . . . . . . . . . . . . 14
Target Connection . . . . . . . . . . . . . . . . . . . . . . . . 15
Setting the Debug Port Clock Frequency. . . . . . . . . . . . . . . . 16
Connecting to your Host Computer . . . . . . . . . . . . . . . . . . 16
What To Do Next . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3 Using the USB TAP 19
USB TAP System Startup . . . . . . . . . . . . . . . . . . . . . . . 19
Notes on Using the USB TAP . . . . . . . . . . . . . . . . . . . . 19
Run/Pause/Mixed Mode States . . . . . . . . . . . . . . . . . . . 20
Breakpoints in Exception/Interrupt Handlers . . . . . . . . . . . . . . 20

Table of Contents
4
USB TAP Users Guide
4 Hardware Specifications 21
Connectors and LEDs . . . . . . . . . . . . . . . . . . . . . . . . 21
Run/Pause Indicator . . . . . . . . . . . . . . . . . . . . . . . . 22
Transmit/Receive Indicator . . . . . . . . . . . . . . . . . . . . . 22
USB Connector . . . . . . . . . . . . . . . . . . . . . . . . . 23
Debug Port Connector . . . . . . . . . . . . . . . . . . . . . . . 23
USB TAP Specifications . . . . . . . . . . . . . . . . . . . . . . . 24
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . 24
Physical Considerations . . . . . . . . . . . . . . . . . . . . . . 25
A JTAG/COP Connector Information 27
B DPI Connector Information 33
C BDM Connector Information 37
D OnCE Connector Information 43
E ARM JTAG Connector Information 47
F USB TAP Firmware (Loader) 53
The USB TAP Internal Software Overview . . . . . . . . . . . . . . . . 53
Loader Software . . . . . . . . . . . . . . . . . . . . . . . . . 53
Dispatcher Software . . . . . . . . . . . . . . . . . . . . . . . . 53
Reprogramming the USB TAP Firmware Image . . . . . . . . . . . . . . 54
What To Do Next . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Index 57

5 USB TAP Users Guide
1
Introducing the
CodeWarrior™ USB TAP
Emulator
The CodeWarrior USB TAP emulator is a cost-effective tool that helps you develop
and debug a number of processors and microcontrollers.
This chapter introduces you to the USB TAP emulator.
The sections are:
•What is the USB TAP Emulator?
•Operating Requirements
•Related Documentation
What is the USB TAP Emulator?
The USB TAP emulator uses advanced emulation technology to provide control of
and visibility into your target system. Combined with the CodeWarrior IDE, the USB
TAP emulator (Figure 1.1) speeds the debugging process by letting you interactively
control and examine the state of your target system.

Introducing the CodeWarrior™ USB TAP Emulator
What is the USB TAP Emulator?
6 USB TAP Users Guide
Figure 1.1 USB TAP for ARM®JTAG with USB 2.0 Cable
Product Highlights
The USB TAP emulator has these features:
• Supports the following systems: PowerPC™ processors, ARM®processors,
ColdFire™ processors, StarCore™ processors, 56800 Hybrid Controllers
(processors and microcontrollers), and RCF base-band controllers.
• Supports all CPU core speeds.
• Lets you control and debug software running in-target, with minimal intrusion
into target operation.
• Lets you debug code in cache, ROM, RAM, and flash memory.
• Provides high performance:
– Split-second single-step execution.
– Capable of download speeds greater than 12 MB per minute from host to
target.
NOTE The actual download speed depends on the target processor, the
debug port’s clock frequency, the network speed, and the debugger.
• Supports one USB 2.0 connection.
• Supports both big and little endian byte-order.
• Automatically supports target signal levels from 1.8V to 3.3V.

Introducing the CodeWarrior™ USB TAP Emulator
What is the USB TAP Emulator?
7 USB TAP Users Guide
• Software debug capabilities including:
– Controlling instruction execution.
– Display and modify target memory.
– Examine and modify any processor registers.
– Run to breakpoints in ROM, RAM, or flash memory.
– Single-step through source and assembly language code views.
– Single-step into, over, or out of functions.
The Debugging Environment
The USB TAP emulator works with the CodeWarrior™ debugger. The debugger has
been integrated with the USB TAP emulator to give you control over the emulation
functions and your target.
USB TAP Emulator Benefits
The USB TAP emulator provides these key benefits:
•Visibility: The USB TAP emulator makes it possible for you to observe registers
and the current state of target memory. You can halt program execution at
predefined states and examine the data for a particular program state.
•Control: You can conveniently control the state of the target system by
downloading code, manually modifying processor registers and memory, single-
stepping through the code, or setting breakpoints.
Target Connections
The USB TAP connects to your target through the standard debug port for the
processor family. Each USB TAP supports a single target connection. The USB TAPs
are available in the following versions:
• JTAG/COP, for PowerPC™ targets
• DPI, for PowerPC™ 5xx and 8xx targets
• BDM, for ColdFire™ targets
• OnCE, for StarCore™, 56800 Hybrid Controllers, RCF base-band, and
PowerPC™ 5500 targets
•ARM®JTAG, for i.MX and MAC7100 targets
For more details see “Connecting to the Target and your Host Computer” on page 13.

Introducing the CodeWarrior™ USB TAP Emulator
Operating Requirements
8 USB TAP Users Guide
Operating Requirements
Before setting up your system, you should make sure that the operating environment is
prepared.
Standard Electrostatic Precautions
This instrument contains static-sensitive components that are subject to damage from
electrostatic discharge. Use standard ESD precautions when transporting, handling, or
using the instrument and the target, when connecting/disconnecting the instrument and
the target, and when removing the cover of the instrument.
We recommend that you use the following precautions:
• Use wrist straps or heel bands with a 1 MΩresistor connected to ground.
• On the work surface and floor, use static conductive mats with a 1 MΩresistor
connected to ground.
• Keep high static-producing items, such as non-ESD-approved plastics, tape and
packaging foam, away from the instrument and the target.
The above precautions should be considered as minimum requirements for a static-
controlled environment.
Electrical Requirements
The USB TAP emulator is powered through the USB cable and does not use an
external power supply. The USB TAP emulator is designed to be plugged directly into
a host computer, but also can work with self-powered hubs. Bus powered hubs may be
unable to provide sufficient power for the USB TAP, which requires 200 mA. If
insufficient power is available, your host operating system will indicate this failure
and the USB TAP emulator will go into a low power suspend mode. If your hub is not
able to provide sufficient power, connect the USB TAP directly to your host PC, or
purchase a self-powered USB hub.
Operating Temperature
The USB TAP emulator can operate in a temperature range of 0 to 40 °C (32 to 104
°F).

Introducing the CodeWarrior™ USB TAP Emulator
Related Documentation
9 USB TAP Users Guide
Target Requirements
The USB TAP emulator automatically supports target signal levels from 1.8V to 3.3V.
NOTE In the case of the PowerPC, for the USB TAP emulator to properly
stop and restart a JTAG/COP target processor, the QACK signal
must be pulled low. The USB TAP emulator pulls this signal low
through the JTAG/COP connector.
Related Documentation
This manual describes the procedures for unpacking the USB TAP emulator, setting
up USB communications, and connecting the USB TAP emulator to your target
system.
The CodeWarrior documentation explains how to install and configure the
CodeWarrior IDE and debugger.

Introducing the CodeWarrior™ USB TAP Emulator
Related Documentation
10 USB TAP Users Guide