ARM Technical Support Knowledge Articles

Does RVD support trace points on the Cortex-M3?

Applies to: RealView Development Suite (RVDS)

Answer

The Cortex-M3 has a reduced capability ETM and does not support trace start/stop points or trace ranges.  It only supports trace triggers via programming the Data Watchpoint and Trace (DWT) unit. 

RVD does not support setting a trace trigger on the Cortex-M3. If any attempt is made to place trace control points (start/stop, ranges or triggers) in the debugger, the following error message will be generated:

  Error V20019 (Vehicle): Logic Analyzer failed on request. See Output log.
  Error: [TA0002] A resource required is not available

Article last edited on: 2011-08-12 09:49:09

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