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Enable Serial Wire Trace

To enable Serial Wire Trace on an NXP LPC43xx device:

  • 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.

    Enable trace on LPC43xx

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

    Configure LPC43xx for Serial Wire Trace

  3. Enable SWJ and select SW.
  4. Click the Trace tab.

    Configure LPC43xx for Serial Wire Trace

  5. Set Trace Enable.
  6. Under Trace Port set Serial Wire Output - Manchester.
  7. Disable Autodetect and enter 2 in SWO Clock Prescaler.
  8. 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 Keil board MCB4300 as a reference.
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