Enable MTB Trace

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To enable Micro Trace Buffer instruction tracing for Cortex-M0 processor-based devices:

• Connect ULINKplus to the PC and to the JTAG adapter of the MPS unit.
  (For Cortex-M0 evaluation boards, connect ULINKplus to the PC and to the board's JTAG or ARM 10-Pin connector.)
• Enable the MTB Block for tracing.
• Configure µVision to capture MTB trace data.

Enable the MTB Block

1. Create a text file, for example Dbg_Ext_Flash.ini, and enter the code that enables the MTB block. When writing initialization files, use the _WDWORD command to configure the registers.

   The example applications provide pre-configured initialization files. Use the Configuration Wizard to setup the application.

   

Configure µVision to capture MTB trace data

1. Open the dialog Options for Target — Debug, and insert Dbg_MTB.ini into the field Initialization File.

   

2. Enable Use and select ULINKplus/ME Cortex Debugger.

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