IAR SYSTEMS I-jet User manual

IARprobesArm-9
IAR Debug Probes User
Guide
I-jet®, I-jet Trace, and I-scope™
for Arm Limited’s
Arm Cores

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IAR Debug Probes User Guide
I-jet®, I-jet Trace, and I-scope™
COPYRIGHT NOTICE
© 2012–2020 IAR Systems AB.
No part of this document may be reproduced without the prior written consent of IAR
Systems AB. The software described in this document is furnished under a license and
may only be used or copied in accordance with the terms of such a license.
DISCLAIMER
The information in this document is subject to change without notice and does not
represent a commitment on any part of IAR Systems. While the information contained
herein is assumed to be accurate, IAR Systems assumes no responsibility for any errors
or omissions.
In no event shall IAR Systems, its employees, its contractors, or the authors of this
document be liable for special, direct, indirect, or consequential damage, losses, costs,
charges, claims, demands, claim for lost profits, fees, or expenses of any nature or kind.
TRADEMARKS
IAR Systems, IAR Embedded Workbench, Embedded Trust, C-Trust, IAR Connect,
C-SPY, C-RUN, C-STAT, IAR Visual State, IAR KickStart Kit, I-jet, I-jet Trace,
I-scope, IAR Academy, IAR, and the logotype of IAR Systems are trademarks or
registered trademarks owned by IAR Systems AB.
Microsoft and Windows are registered trademarks of Microsoft Corporation.
Arm, Cortex, Thumb, and TrustZone are registered trademarks of Arm Limited.
EmbeddedICE is a trademark of Arm Limited. uC/OS-II and uC/OS-III are trademarks
of Micrium, Inc. CMX-RTX is a trademark of CMX Systems, Inc. ThreadX is a
trademark of Express Logic. RTXC is a trademark of Quadros Systems. Fusion is a
trademark of Unicoi Systems.
Renesas Synergy is a trademark of Renesas Electronics Corporation.
Adobe and Acrobat Reader are registered trademarks of Adobe Systems Incorporated.
All other product names are trademarks or registered trademarks of their respective
owners.
EDITION NOTICE
Ninth edition: February 2020
Part number: IARprobesArm-9
This guide applies to version 8.50.x of IAR Embedded Workbench® for Arm.
Internal reference: Mym8.4, tut2009.1, INIT.

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Contents
I-jet ............................................................................................................................. 5
Introduction ................................................................................................ 5
The I-jet in-circuit debugging probe .................................................... 6
Requirements ....................................................................................... 7
Supported core families ....................................................................... 7
Target connections ............................................................................... 7
Working with I-jet .................................................................................... 8
Setup and installation ........................................................................... 8
Connecting the target system ............................................................... 8
Updating the probe firmware ............................................................... 9
Technical specifications ....................................................................... 13
The I-jet package ................................................................................ 13
Model specifications .......................................................................... 13
JTAG timing specification ................................................................. 14
Hardware revision history .................................................................. 15
Target interface .................................................................................. 16
Indicators ............................................................................................ 20
Adapters ............................................................................................. 21
I-jet Trace ............................................................................................................. 37
Introduction .............................................................................................. 37
The I-jet Trace CM and I-jet Trace A/R/M in-circuit debugging
probes ................................................................................................. 37
Requirements ..................................................................................... 38
Target connections ............................................................................. 39
Working with I-jet Trace .................................................................... 39
Setup and installation ......................................................................... 40
Connecting the target system ............................................................. 40
Using Trace ........................................................................................ 41
Updating the probe firmware ............................................................. 41

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IAR Debug Probes User Guide
I-jet®, I-jet Trace, and I-scope™
Technical specifications ....................................................................... 42
The I-jet Trace package ...................................................................... 42
Model specifications .......................................................................... 42
Hardware revision history .................................................................. 44
Connectors ......................................................................................... 45
Indicators ............................................................................................ 47
Adapters ............................................................................................. 48
Designing target boards for ETM trace .............................................. 52
General PCB layout guidelines .......................................................... 53
I-scope .................................................................................................................... 57
Introduction .............................................................................................. 57
Reasons for using I-scope .................................................................. 57
Requirements for using I-scope ......................................................... 57
The I-scope probe ............................................................................... 57
Current and voltage measurement using I-scope ............................... 58
Working with I-scope ........................................................................... 60
Setup and Installation ......................................................................... 60
Technical specifications ....................................................................... 60
The I-scope package ........................................................................... 61
External characteristics ...................................................................... 61
I-scope probe specification ................................................................ 62

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I-jet
●Introduction
●Working with I-jet
●Technical specifications
Introduction
These topics are covered:
●The I-jet in-circuit debugging probe
●Requirements
●Supported core families
●Target connections

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Introduction
IAR Debug Probes User Guide
I-jet®, I-jet Trace, and I-scope™
THE I-JET IN-CIRCUIT DEBUGGING PROBE
I-jet connects to the target board via a JTAG, SWD, or cJTAG connection, and to the
host computer via the USB port.
I-jet communicates using USB 2.0. (USB 1.0 is also supported but not recommended.)
The I-jet in-circuit debugging probe is also referred to as a debug probe, debug adapter,
or JTAG in-circuit emulator by different tool vendors.
C-SPY debugger
C-SPY driver
USB connection
I-jet
JTAG, SWD
or cJTAG

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I-jet streams the program counter, variables, and power measurement data to the host
computer to provide a view into program execution in real time. Besides the typical
JTAG debugging, I-jet is capable of providing power to the target board and measuring
it with sufficient accuracy to provide a power profile during program execution in real
time. This feature is referred to as power debugging.
For debugging Cortex devices, I-jet also supports the SWO (Serial Wire Output) feature,
which can be used for tracing the program execution and tracking variables at predefined
points in your code.
The I-jet in-circuit debugging probe has full support for on-chip trace—ETB
(Embedded Trace Buffer), MTB (Micro Trace Buffer), and TMC (Trace Memory
Controller).
REQUIREMENTS
I-jet needs to be controlled by the IAR C-SPY® Debugger which comes with the IAR
Embedded Workbench® IDE.
SUPPORTED CORE FAMILIES
These cores are currently supported:
●Arm7
●Arm9
●Arm11
●Cortex-M
●Cortex-R
●Cortex-A
TARGET CONNECTIONS
These interfaces are supported:
●MIPI-20 (part number SHF-110-01-L-D): JTAG, cJTAG, SWD, SWO, ETM
●MIPI-10 (part number SHF-105-01-L-D): JTAG, cJTAG, SWD, SWO
●ARM-20 (part number HTST-110-01-L-DV): JTAG, cJTAG, SWD, SWO
I-jet comes with a MIPI-20 connector on the front panel, with MIPI-20 and MIPI-10
cables, and a legacy ARM-20 adapter.
All other available I-jet adapters are also compatible with I-jet Trace.

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Working with I-jet
IAR Debug Probes User Guide
I-jet®, I-jet Trace, and I-scope™
Working with I-jet
These tasks are covered:
●Setup and installation
●Connecting the target system
●Updating the probe firmware
For information about debugging using I-jet, see the C-SPY® Debugging Guide for
Arm.
SETUP AND INSTALLATION
Software
Before you can use I-jet, you need to install IAR Embedded Workbench for Arm. For
information, see the Installation and Licensing Quick Reference Guide and the
Licensing Guide.
Probe setup
I-jet does not require any special driver software installation. Normally, all drivers for
I-jet are automatically installed as part of the IAR Embedded Workbench installation.
If you need to install the USB driver manually, navigate to \Program Files
\IAR Systems\Embedded Workbench x.x\arm\drivers\jet\USB\32-bit or
64-bit (depending on your system). Start the dpinst.exe application. This will
install the USB driver.
For information about using multiple I-jet probes on the same host computer, see the
C-SPY® Debugging Guide for Arm.
CONNECTING THE TARGET SYSTEM
Power-up your I-jet probe
1Connect I-jet to the target board using the cable that matches the target board connector
(MIPI-20 or MIPI-10). If a standard JTAG connector is used, you must first plug the
ADA-MIPI20-ARM20 adapter into the JTAG connector.
2Connect I-jet to the host computer using the USB micro cable.
Note: No harm is done if the above order is reversed.
To prevent damage, the target GND and the USB host GND must be at the same level.
When hot-plugging, make sure that the PC and the target board power supply are
connected to the same grounded wall outlet or a common grounded desktop power strip.

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I-jet
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Power up your evaluation board
If you have an evaluation board that is prepared for it, you can power the board via I-jet
through pin 19 on the standard ARM-20 connector, or pin 11/13 on the small MIPI-20
connector. Target power of up to 420 mA can be supplied from I-jet with overload
protection. Most of the IAR Systems KickStart Kits contain an evaluation board that can
be powered this way. Make sure that the power jumper found on most of these boards
matches your setup.
Note: The target board will get power via I-jet once you choose the Download and
Debug or Debug without Downloading command, but not before.
Note: The only way to use the power debugging feature is to power up your evaluation
board via I-jet.
UPDATING THE PROBE FIRMWARE
I-jet and I-jet Trace are designed so that firmware updates are not necessary unless new
features added to IAR Embedded Workbench for Arm require extra hardware support.
When a new version of IAR Embedded Workbench for Arm is released and a new
feature that requires new firmware is used, C-SPY displays a message in the DebugLog
window asking you to update the firmware.
Note: Support for new MCU devices is managed by software updates in IAR Embedded
Workbench for Arm, and has nothing to do with I-jet or I-jet Trace firmware.
For more information about firmware versions, see the release notes.
To update the probe firmware:
1In IAR Embedded Workbench, choose I-jet>EmuDiag to display the About to
Connect to an Emulator dialog box.
Select Connect to an EmulatorAutomatically and click Next.

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Working with I-jet
IAR Debug Probes User Guide
I-jet®, I-jet Trace, and I-scope™
2In the EmuDiag dialog box, click Update Firmware.