4.3.11. Cycle accurate tracing

This setting determines whether the ETM operates in cycle-accurate mode:

Considerations for cycle-accurate tracing

Be aware of the following for cycle-accurate tracing:

  • For ETMv3, timestamping and cycle-accurate tracing are mutually exclusive.

  • For ETMv1, cycle-accurate tracing does not record timing information between trace discontinuities.

  • Fewer instructions are captured when doing cycle-accurate tracing relative to non cycle-accurate tracing. This is because the ETM must output more information with less compression.

See also

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