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Enable Serial Wire Trace

To enable Serial Wire Trace on an NXP LPC17xx device:

  • 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.

    Enable trace on LPC17xx

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

    Configure LPC17xx for Serial Wire Trace

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

    Configure LPC17xx 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 Keil board MCB1700 as a reference.
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