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Cortex M33 Tracing

Lica

Hey, 

As I am exploring the tracing capabilities present in the Cortex M33, there are some things that I am not able to understand fully, such as the connection between ETM and the tracing sinks. As I read, more doubts emerged, and the more confused I got. So what I wanted to know is: 

  • Is it possible to access the tracing streams from the running system? What I mean is if the core can obtain these packets while running.
  • What is the difference between the Micro Trace Buffer(MTB) and Embedded Trace Buffer(ETB)? I thought both acted like buffers for the trace packets generated by a tracing unit, such as the ETM.

Cheers

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