Freescale Semiconductor NXP CodeWarrior USB TAP User manual

CodeWarrior™
USB TAP Users Guide
Revised: 11 November 2005
USB_TAP.book Page 1 T hursd a y , November10,2005 2:27 PM

Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. CodeWarrior is a trademark or reg-
istered trademark of Freescale Semiconductor, Inc. in the United States and/or other countries. All other product or ser-
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Copyright © 2005 by Freescale Semiconductor, Inc. All rights reserved.
Information in this document is provided solely to enable system and software implementers to use Freescale Semicon-
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Technical Support http://www.freescale.com/support
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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 Connecting to the Target and your Host Computer 11
Debug Port Connector Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Target Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Setting the Debug Port Clock Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Connecting to your Host Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
What To Do Next . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3 Using the USB TAP 15
USB TAP System Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Notes on Using the USB TAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Run/Pause/Mixed Mode States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Breakpoints in Exception/Interrupt Handlers . . . . . . . . . . . . . . . . . . . . . . . . 16
4 Hardware Specifications 17
Connectors and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Run/Pause Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Transmit/Receive Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
USB Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Debug Port Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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Table of Contents
4 USB TAP Users Guide
USB TAP Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Physical Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
A JTAG/COP Connector Information 21
B DPI Connector Information 27
C BDM Connector Information 31
D OnCE Connector Information 37
E ARM® JTAG Connector Information 41
F USB TAP Firmware (Loader) 47
The USB TAP Internal Software Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Loader Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Dispatcher Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Reprogramming the USB TAP Firmware Image . . . . . . . . . . . . . . . . . . . . . . . .48
What To Do Next . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
G Troubleshooting 51
Index 53
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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.
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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 Windows®NT/2000/XP and the following Linux operating systems: Red
Hat® Linux®version 8.0 or 9.0, Fedora™ Core 3 or Core 4, and
Mandrake®Linux®10.0.
• 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.
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Introducing the CodeWarrior™ USB TAP Emulator
What is the USB TAP Emulator?
7 USB TAP Users Guide
• Automatically supports target signal levels from 1.8V to 3.3V.
• 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™ 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.
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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).
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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.
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Introducing the CodeWarrior™ USB TAP Emulator
Related Documentation
10 USB TAP Users Guide
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