ARM DSTREAM DS-5 User Manual page 15

TRC CLK
The DSTREAM unit contains an internal cooling fan that operates to control the internal temperature
when necessary. Do not obscure the ventilation panels on the front and back of the DSTREAM unit.
Related concepts
1.5 The DSTREAM probe on page 1-16
1.7 Updating the DSTREAM firmware on page 1-19
1.8 The DSTREAM host software on page 1-20
Related tasks
1.11 Restoring a DSTREAM unit that fails to boot on page 1-23
1.9 Troubleshooting your DSTREAM unit on page 1-21
2.5 Tracing with DSTREAM on page 2-30
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If green, the TRC CLK LED indicates that a valid trace clock is detected. If red, the TRC CLK
LED indicates that there is a problem with the trace clock.
If the probe TRC CLK LED is green and the DSTREAM unit TRC CLK LED is red then the
target is outputting a trace clock but the DSTREAM unit is unable to lock on to it. Possible
causes for this are that the clock frequency is too high or that the clock frequency is varying too
much.
Note
Copyright © 2010–2012, 2015, 2017, 2018 Arm Limited or its
affiliates. All rights reserved.
Non-Confidential
1 Introduction to Arm DSTREAM
1.4 The DSTREAM unit
1-15