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1.4
The DSTREAM unit
The DSTREAM unit provides the hardware interface to enable a software debugger to control and trace
multiple devices on a single target.
The unit has ports at the rear for connecting to the host computer and to a power source. These ports are
shown in the following figure.
The LEDs at the bottom of the Ethernet port display information about Ethernet speed and activity:
•
The green LED shows the Ethernet speed. When Off, it indicates a speed of 10Mbps, and when On
indicates a speed of 100Mbps.
•
The yellow LED indicates that activity is taking place.
The RESET button resets the DSTREAM unit when required:
•
Press and hold the RESET button until the STATUS LED starts to flash green rapidly. If you release
the RESET button at this point, a normal reboot occurs.
•
If you continue to hold the RESET button for 10 seconds more, the STATUS LED flashes red rapidly.
When you release the RESET button after this point, DSTREAM reboots and enters a recovery mode,
which enables you to update firmware.
The ports at the front of the unit are shown in the following figure.
The AUX port is included for future enhancement of the product.
Ethernet and USB cables are supplied to connect the DSTREAM unit to your host computer. Probe
cables are supplied to connect the DSTREAM unit to the target hardware.
The following figure shows the location and name of each of the indicator LEDs.
100955_0529_00_en
Ethernet port
USB port
LED
(100Mb
Ethernet)
USER IO
PROBE
Copyright © 2010–2012, 2015, 2017, 2018 Arm Limited or its
affiliates. All rights reserved.
Non-Confidential
1 Introduction to Arm DSTREAM
RESET
LED
(Ethernet
activity)
Figure 1-1 Rear of DSTREAM unit
Figure 1-2 Front of DSTREAM unit
1.4 The DSTREAM unit
5VDC
- -
AUX
1-13
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