ARM DSTREAM-HT Getting Started Manual page 18

DSTREAM-HT Getting Started Guide
If a critical error is detected, the STATUS LED illuminates as continuous red. If the STATUS
LED is red, then you must reset the DSTREAM-ST unit to the factory settings before you can
continue using it. If the DSTREAM-ST unit fails to boot after a reset,
For more information, see
FLASH
Illuminates when the unit is accessing its internal flash storage.
TARGET
Illuminates when a valid target VTREF is detected.
DEBUG
Illuminates when debug data transfer takes place.
TRACING
Indicates that DSTREAM-ST is attempting to capture data and synchronize with the trace
stream.
TRIGGER
Indicates that a trigger is present in the trace data.
DATA
Indicates that trace synchronization is complete and DSTREAM-ST is capturing trace data.
Trace synchronization is when the DSTREAM-ST unit detects a full synchronization packet
and aligns with the trace data stream.
OVERFLOW
Indicates an overflow-condition during trace capture. An overflow condition occurs if it has
not been possible to stream trace data to the host PC at a high enough rate. For example,
if the USB port is only operating in USB 2.0 mode, if the Ethernet port is only operating
at 100Mbps, or if other applications on the host PC are using too much USB or Ethernet
bandwidth.
In general, when streaming trace data, the best practice is to keep usage of other
applications, on the host PC, to a minimum.
TRC CLK
This LED is for parallel trace only.
If the TRC CLK LED is green, it indicates that a valid trace clock is detected. This is the
normal condition when capturing trace data from a target.
If the TRC CLK LED is off, then no parallel trace clock signal is detected.
If the TRC CLK LED is red and flashing, it indicates that the received trace clock frequency is
too high or too low to be captured.
Related information
The HSSTP probe on page 18
Connect and power up the DSTREAM-HT system
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Restore a DSTREAM-HT
on page 24
Non-Confidential
Document ID: 101760_1.0_02_en
The DSTREAM-HT system
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