Tracing on Silicon Labs EZR32LG330

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This article describes how to get started with trace on the Silicon Labs EZR32LG330 MCU. This article assumes that there is already a basic knowledge about trace in general (what is trace, what different implementations of trace are there, etc.). If this is not the case, we recommend to read Trace chapter in the J-Link User Manual (UM08001). The Silicon Labs EZR32LG330 MCU implements tracing via pins , so a J-Trace can be used for tracing.

Minimum requirements

In order to use trace on the Silicon Labs EZR32LG330 devices, the following minimum requirements have to be met:

  • J-Link software version V6.14a or later
  • Ozone V2.22o or later (if streaming trace and / or the sample project from below shall be used)
  • J-Trace PRO for Cortex-M HW version V1.0 or later

Sample project

Streaming trace

The following sample project is designed to be used with J-Trace PRO and Ozone to demonstrate streaming trace. The project has been tested with the minimum requirements mentioned above and a WSTK Main Board BRD4001A evaluation board with a EZR32LG330 radio board plugged into it. The sample project comes with a pre-configured project file for Ozone that runs out-of-the box. In order to rebuild the sample project, SEGGER Embedded Studio can be used.

SiliconLabs_EZR32LG330_7MHz_TraceExample.zip

Specifics/Limitations

The EZR32LG330 product family has additional pins that can be used for tracing. Usually only 5 Pins are mapped to have the trace functionality. In this case however multiple pinout configurations are possible over different ports even. Should you be using our trace example make sure your physical tracepin connections are equal to the ones on the evaluation board used in the example. If not adjust the pin initialization accordingly.

Tested Hardware

WSTK Main Board BRD4001A