Texas Instruments XDS110 Manuel utilisateur

SPRUIE1A–February 2017–Revised August 2017

XDS110 EnergyTrace™ HDR Debug Probe Add-On

User's Guide

SPRUIE1A–February 2017–Revised August 2017

XDS110 EnergyTrace™ HDR Debug Probe Add-On

The XDS110 ETHDR is an add-on expansion module to the XDS110 Debug Probe that provides an

enhanced HDR (high dynamic range) EnergyTrace™ (ET) capability to the capability that exists on the

base XDS110 Debug Probe.

Contents

1 Overview...................................................................................................................... 2

1.1 XDS110 ETHDR Feature Summary.............................................................................. 2

1.2 XDS110 ETHDR System Summary.............................................................................. 2

1.3 XDS110 ETHDR Overview........................................................................................ 3

1.4 XDS110 ETHDR Parts List........................................................................................ 3

1.5 PCB Breakoff Sections and Compliance ........................................................................ 3

1.6 Environmental Information......................................................................................... 4

2 Probe Interfaces ............................................................................................................. 5

2.1 USB Power Interface............................................................................................... 5

2.2 Probe Expansion Header.......................................................................................... 5

3 Functional Description and Operation..................................................................................... 6

3.1 Physical Connection................................................................................................ 6

3.2 Basic Setup for the Debug Connection .......................................................................... 7

3.3 Energy Trace HDR ................................................................................................. 7

List of Figures

1 XDS110 Probe High-Level Block Diagram............................................................................... 3

2 Expansion Header Signal Mapping ....................................................................................... 5

3 Stacking the ETHDR on the XDS110 Probe............................................................................. 6

4 The XDS110 Probe and ETHDR System ................................................................................ 6

5 Shunt Range Selection...................................................................................................... 9

List of Tables

1 Base ET and ETHDR Comparison........................................................................................ 7

2 ETHDR Measurement Performance ...................................................................................... 7

Trademarks

EnergyTrace is a trademark of Texas Instruments.

OS X is a trademark of Apple, Inc..

Linux is a registered trademark of Linus Torvalds.

Windows is a registered trademark of Microsoft Corporation.

Wi-Fi is a registered trademark of Wi-Fi Alliance.

Overview

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XDS110 EnergyTrace™ HDR Debug Probe Add-On

1 Overview

The XDS110 ETHDR is an add-on expansion module to the XDS110 Debug Probe. It provides an

enhanced HDR EnergyTrace (ET) capability to the capability that exists on the base XDS110 Debug

Probe.

1.1 XDS110 ETHDR Feature Summary

• Target supplied power From 1.8 V to 3.6 V

– Up to 800 mA

• Power profiling features

– Support for TI EnergyTrace HDR in two ranges:

• 1 µA to 120 mA – Higher accuracy but lower peak current

• 1 µA to 800 mA – Higher peak current but lower accuracy

– Current sampling at 256k sample per second

1.2 XDS110 ETHDR System Summary

The following features are for the combined XDS110 Probe with the XDS110 ETHDR system:

• Host platforms supported:

– The system supports various versions of Windows®, OS X™, and Linux®operating systems.

Consult the documentation for CCS and other development environments for more details.

• IDE versions supported:

– TI CCS v7.0 and later

– IAR (see IAR documentation)

– Keil (see Keil documentation)

• TI platforms, devices, and ISAs supported:

– MSP432 MCUs

– CC26xx/13xx Wireless MCUs

– CC32xx/31xx Wi-Fi®MCUs

– TM4C12x MCUs

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Overview

SPRUIE1A–February 2017–Revised August 2017

XDS110 EnergyTrace™ HDR Debug Probe Add-On

1.3 XDS110 ETHDR Overview

Figure 1 shows a high-level diagram of the major functional areas and interfaces of the XDS110 Probe

XDS110 ETHDR system. Details of these are described in Section 2.

Figure 1. XDS110 Probe High-Level Block Diagram

1.4 XDS110 ETHDR Parts List

The XDS110 ETHDR system consists of the following hardware:

• The XDS110 ETHDR add-on pod

• USB cable (only used for auxiliary power to the ETHDR)

1.5 PCB Breakoff Sections and Compliance

The different sections of the EVM may be broken apart for ease of prototyping and development. Note that

breaking apart the sections voids the warranty. In addition, the stated performance and compliance

specifications of the EVM cannot by guaranteed when sections have been broken apart.

If provided, the shielded USB cable is longer than 3m in length. If not, and one is to be purchased for use

with this EVM, it is required to be no logner than 3m to retain the stated performance and compliance.

Overview

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XDS110 EnergyTrace™ HDR Debug Probe Add-On

CAUTION

This debug probe contains components that can potentially be damaged by

electrostatic discharge. Always transport and store the debug probe in the

supplied ESD bag when not in use. Handle using an antistatic wristband.

Operate on an antistatic work surface. For more information on proper

handling, refer to Electrostatic Discharge (ESD) (SSYA010).

1.6 Environmental Information

Supply voltage: 4.75 V to 5.5 V at 500 mA

Temperature: 0°C to 40°C

Humidity: 50% RH

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Probe Interfaces

SPRUIE1A–February 2017–Revised August 2017

XDS110 EnergyTrace™ HDR Debug Probe Add-On

2 Probe Interfaces

2.1 USB Power Interface

Additional power for the XDS110 ETHDR add-on is provided through a female Micro-USB B-type

connector. The USB interface provides additional power to the entire system, and no additional

functionality. For target systems drawing more than 400 mA, connect this USB connector to a power

source providing at least 500 mA at 5 V DC.

2.2 Probe Expansion Header

The XDS110 ETHDR interfaces to the XDS110 system through the probe expansion header. The header

exposes a number of functional interfaces of the TM4C129 debug control CPU, as shown in Figure 2. The

use of these signals is reserved for the ETHDR or other add-on modules designed by TI, or designated

third parties.

2.2.1 Physical Connection for the Expansion Interface

The XDS110 ETHDR supports a 30-pin IDC male socket with .100-inch pitch. The signal mapping for this

connection can be found in Figure 2.

Figure 2. Expansion Header Signal Mapping

Functional Description and Operation

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XDS110 EnergyTrace™ HDR Debug Probe Add-On

3 Functional Description and Operation

3.1 Physical Connection

The XDS110 ETHDR is connected to the XDS110 Debug Probe by stacking the enclosures, as shown in

Figure 3 and Figure 4.

Figure 3. Stacking the ETHDR on the XDS110 Probe

Figure 4. The XDS110 Probe and ETHDR System

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Functional Description and Operation

SPRUIE1A–February 2017–Revised August 2017

XDS110 EnergyTrace™ HDR Debug Probe Add-On

The target power and debug connections are managed through the existing debug and AUX connectors

on the XDS110 Probe. No direct connection between the ETHDR and the debug target exists.

3.2 Basic Setup for the Debug Connection

The presence of the XDS110 ETHDR does not impact the basic debug connectivity of the system, and the

instructions in Section 3.1 of the XDS110 Debug Probe Users Guide (SPRUI94) are still valid.

3.2.1 Probe Supplied Power and ETHDR

The addition of the ETHDR enables the XDS110 Debug Probe to supply current up to 800 mA. No

additional steps are required to support this, and the power configuration steps in Section 3.1.2.2. of the

XDS110 Debug Probe Users Guide (SPRUI94) are still valid.

3.3 Energy Trace HDR

3.3.1 Introduction

When combined with the XDS110 Debug Probe, the XDS110 ETHDR provides an enhanced system that

can be used for measuring the current consumption of the target. These current consumption

measurements can be used to develop power and energy use profiles of the target system. The ETHDR

expands the ET capabilities of the XDS110 Debug Probe, and these may be required for higher current

use cases, or when precise temporal correlation of power transitions is required. Table 1 shows a high

level comparison of the capabilities of the two ET capture types.

Table 1. Base ET and ETHDR Comparison

Capability Base ET on XDS110 Probe ETHDR

Measurement range 500 nA to 100 mA • 1 µA to 120 mA – low current high accuracy

• 1 µA to 800 mA – high current range lower accuracy range

Sampling frequency 2 ksps 256 ksps

Supply ripple Some ripple due to SW DCDC None

3.3.2 Specifications

Other than accuracy and sampling frequency, the specifications for a system utilizing the XDS110 ETHDR

are identical to the ET specifications found in the XDS110 Debug Probe Users Guide (SPRUI94).

3.3.2.1 Accuracy

Table 2 lists the accuracy and range of the ETHDR.

Table 2. ETHDR Measurement Performance

Low Range High Accuracy High Range Low Accuracy

Range Accuracy Range Accuracy

1 µA to 15 µA ±700 nA 1 µA to 70 µA ±3.5 µA

15 µA to 120 mA ±5% 70 µA to 800 mA ±5%

3.3.2.2 Sampling Frequency

The XDS110 ETHDR samples target current consumption a 256k samples per second. Thus, the system

can reliably catch target power transitions that last 10 microseconds or longer.

3.3.3 Hardware Setup

Other than the stacked connection of the XDS110 Probe and the XDS110 ETHDR, the hardware setup is

identical to that which is described in Section 3.1 of the XDS110 Debug Probe Users Guide (SPRUI94).

Functional Description and Operation

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XDS110 EnergyTrace™ HDR Debug Probe Add-On

3.3.4 XDS110 ETHDR Usage in Code Composer Studio

When the XDS110 ETHDR is attached to the XDS110 Debug Probe, the ETHDR is used as the power

measurement system. The procedure for configuring an ET session, capturing, and displaying data are

identical to that defined in Section 3.6 of the XDS110 Debug Probe Users Guide (SPRUI94), with the

exception noted below.

3.3.4.1 CCS Setup for ETHDR

The ETHDR supports two capture ranges, as noted above. The selection changes the size of the shunt

resistor used to measure the target current consumption. The desired range must be specified in the

EnergyTrace Technology Preferences dialog that is reached through CCS →Advanced Tools →

EnergyTrace Technology. Figure 5 shows this dialog, and highlights the selection radio buttons.

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Functional Description and Operation

SPRUIE1A–February 2017–Revised August 2017

XDS110 EnergyTrace™ HDR Debug Probe Add-On

Figure 5. Shunt Range Selection

3.3.5 XDS110 ETHDR Usage Usage With Command Line Utility – soctune

The Windows-based CCS installation has an interactive command line utility called stune which can be

used for capturing EnergyTrace data to a CSV file. The procedure for using stune is the same as defined

in Section 3.6.5 of the XDS110 Debug Probe Users Guide (SPRUI94), with the addition that the ETHDR

capture range can be specified using the range option –r “lo | hi” with the energytrace command. The “lo”

range selection maps to “Low current, narrower range higher accuracy” and the “hi” range selection maps

to “High current, wider range lower accuracy”. If the range option is not specified, the range is set to “lo”

by default.

Functional Description and Operation

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XDS110 EnergyTrace™ HDR Debug Probe Add-On

For example:

To capture 5 seconds of EnergyTrace with the range set to low range enter the following command:

energytrace -D 5000 -o output.csv -r lo et

The –D option specified the time in milliseconds.

The –o option specifies the output filename. The file format is fixed as CSV.

The –r option specifies the range low (lo) or high (hi).

To capture 5 seconds of EnergyTrace with the range set to high range enter the following command:

energytrace -D 5000 -o output.csv -r hi et

The –D option specified the time in milliseconds.

The –o option specifies the output filename. The file format is fixed as CSV.

The –r option specifies the range low (lo) or high (hi).

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