Hot-Plug The Debug Cable - ARM DSTREAM-XT Getting Started Manual

DSTREAM-XT Getting Started Guide
RDDI is located in <Arm_Development_Studio_install_directory>/sw/
debugger/RDDI. For more information about RDDI, see the RDDI documentation available
at <Arm_Development_Studio_install_directory>/sw/debugger/RDDI/docs/
html/index.html
DTSL is located in <Arm_Development_Studio_install_directory>/sw/DTSL. For
more information about DTSL, see the
CoreSight Access Tool (CSAT)
The CoreSight Access Tool (CSAT) provides a scriptable low-level interface to the CoreSight
™
Debug Access Port (DAP) on a target. CSAT is useful to perform initial bring-up tests before a
debugger connection to the target is available.
For more information, see the
Development Studio installation, CSAT is located in <install_directory>/Arm/
Development Studio <version>/bin/csat.exe.

4.2 Hot-plug the debug cable

At times, you might want to connect or disconnect the debug cable between the DSTREAM-XT
system and the target hardware, without powering off the target. This process is known as hot-
plugging.
Arm recommends you avoid hot-plugging the debug cable. However, you can hot-plug without
affecting target operation, if:
• The DSTREAM-XT system is powered by its original power supply (which has an earthed-
output).
• The target hardware is earthed, either through its power supply, or a separate earth connection.
• If the DSTREAM-XT system or the target hardware are not properly earthed,
potential differences can occur between them. During connection, potential
differences can cause unwanted pulses in the debug interface. Pulses in the
debug interface can cause unwanted resets to occur.
• Hot-plugging of a PCIe interface is not recommended and could cause instability
in a target's operating system.
Hot-plugging: connecting
To connect a DSTREAM-XT system to a target without affecting its current state, you must:
1. Power up the DSTREAM-XT system. Allow the DSTREAM-ST and XT probe to boot up.
Copyright © 2021 Arm Limited (or its affiliates). All rights reserved.
Arm Development Studio User
CoreSight Access Tool (CSAT) User
Non-Confidential
Document ID: 102443_1.0_00_en
Version 1.0
Using DSTREAM-XT
Guide.
Guide. In your Arm
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