Tracing on Nordic Semiconductor nRF52: Difference between revisions

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This article describes how to get started with trace on the Nordic Semiconductor nRF52 series. 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 Nordic Semiconductor nRF52 device series supports ETM tracing via trace pins.
The Nordic Semiconductor nRF52 series implements tracing via pins only, so a J-Trace is needed to perform tracing on these devices.
However different pins are used on different subfamilies.
The following article will link to each setup respectively and offer an out-of-the-box trace example.


= Minimum requirements =
== Related articles ==
In order to use trace on the Nordic Semiconductor nRF52 series devices, the following minimum requirements have to be met:
* [[Tracing on Nordic Semiconductor nRF52832]]
* J-Link software version V6.18c or later
* [[Tracing on Nordic Semiconductor nRF52840]]
* Ozone V2.46a 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 =
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 PCA10040 V0.9.0. The sample project comes with a pre-configured project file for Ozone that runs out-of-the box on any Nordic Semiconductor nRF52 that has the Tracepins connected. In order to rebuild the sample project, [https://www.segger.com/embedded-studio.html SEGGER Embedded Studio] can be used.
 
[[Media:Nordic_nRF52_TraceExample_16MHz_TCLK_pex.zip | Nordic_nRF52_TraceExample_16MHz_TCLK.zip]]
 
 
'''Note''': The example is shipped with a encrypted .JLinkScriptfile, should you need the original source it can be requested at [mailto:support@segger.com support@segger.com]
 
To create your own .JLinkScriptfile you can use the following project as reference: [https://wiki.segger.com/Tracing_on_ST_STM32F407_(SEGGER_Cortex-M_Trace_Reference_Board) Tracing on SEGGER_Cortex-M_Trace_Reference_Board]
 
= Specifics/Limitations =
The Nordic Semiconductor nRF52 MCU uses a traceclock that is independend from the cpu clock. By hardware it is limited to maximum 16 MHz TCLK.
 
= Tested Hardware =
[[File:Nordic_RF52_PCA10040_V0.9.0.jpg|left|thumb|PCA10040 V0.9.0]]

Latest revision as of 15:26, 4 November 2021

The Nordic Semiconductor nRF52 device series supports ETM tracing via trace pins. However different pins are used on different subfamilies. The following article will link to each setup respectively and offer an out-of-the-box trace example.

Related articles

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