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Enable Serial Wire Trace

To enable Serial Wire Trace on Freescale MK70FN1M devices:

  • Connect the ULINKpro debugger adapter with the board's Cortex Debug connector and with 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.

    Select ULINKpro as the debugger adapter

  2. Enable Use, select ULINK Pro Cortex Debugger, and click Settings open the Target Driver Setup dialog.

    Set the Serial Wire Trace options

  3. Enable SWJ and select SW from the Port drop-down list.
  4. Click the Trace tab.

    Configure the Serial Wire Debug mode

  5. Set Trace Enable.
  6. Set the Trace Port to Serial Wire Output - Manchester.
  7. Enable Autodetect for the SWO Clock.
  8. Make sure the Core Clock is set correctly.

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

Note

  • Use the examples delivered with the Freescale board TWR-K70FN1M as a reference.
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