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TPIU Trace Clock How to Configure for ETM Tracing

SarahW 6 months ago

Hi,

Is there a simple way to configure the TPIU trace clock for ETM trace capture pls? This is for a Cortex M33 and the traceclk will vary (depending on CPU clock and power saving) so we will need to configure the TPIU clock via DAP I guess?

Wasnt sure if this was something that ARM DS will support.

Thanks

Sarah

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Stephen Theobald 6 months ago in reply to SarahW +1 verified

Hi again Is the divider intended to be configurable by software? If so, then it will need to present itself as a memory-mapped peripheral, containing register(s) that the user can read/write to. I guess...

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0 SarahW 6 months ago in reply to Stephen Theobald

Thank you so much. This is all clear. The register wont be accessible from the CPU and can only be configured from the debugger. I think I will use the debugger commandline to configure register (as u suggest) by adding it to the ds file.
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0 SarahW 6 months ago in reply to Stephen Theobald

Thank you so much. This is all clear. The register wont be accessible from the CPU and can only be configured from the debugger. I think I will use the debugger commandline to configure register (as u suggest) by adding it to the ds file.
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