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Enable Serial Wire Trace

To enable Serial Wire Trace on Luminary LM3Sx devices:

  • Use a ULINK2 connector interface that supports Serial Wire, and connect ULINK2 to the board and to the host computer.
  • Configure µVision to capture Serial Wire Trace data.

Configure µVision to capture Serial Wire Trace data

  1. Open the dialog Options for Target — Debug.
  2. Enable Use, select ULINK Cortex Debugger, and click Settings to open the Target Driver Setup dialog.

    Select the debugger adapter

  3. Enable SWJ and select SW.

    Configure the Serial Wire Debug mode

  4. Click the Trace tab.

    Configure Luminary devices for Serial Wire Trace

  5. Set Trace Enable and Autodetect.
  6. The Core Clock must correspond to the device configuration.

Start the debugging session and verify the captured trace data with a µVision window.

Note

  • Use the examples delivered with the Luminary board ek-lm3s6965 as a reference.
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