[SOLVED] No trace data

pattyo · Aug 23rd 2018, 3:29am

I'm trying to get tracing working in Segger Embedded Studio.

Steps I've roughly followed:
* Create & configure a project for "externally built executable"
* Run "Target->Attach Debugger"
* Break/continue, etc.

The Execution Profile window is showing information, but Execution Trace says No trace data.

Is there an equivalent of the Ozone "Debug.ReadIntoTraceCache" function in Segger Embedded Studio?

Thanks,

Patrick

SEGGER - Nino · Aug 24th 2018, 11:26am

Hello Patrick,

Thank you for your inquiry.
What is the target device you are trying to trace? Did you make sure that the trace pins and trace clock on the target device are initialized?
If you want to just attach to a running program and trace that you need to read the currently running application into trace cache.
wiki.segger.com/Getting_unknow…sses_in_instruction_trace
For Embedded Studio you can call the exec command ReadIntoTraceCache in a JLink Script file. More information about script files can be found in the J-Link user guide. How to use a JLinkScript with Embedded Studio is explained here: wiki.segger.com/Using_J-Link_Script_Files

Best regards,

Nino

pattyo · Aug 26th 2018, 5:05pm

Hi Nino,

I am attempting to trace the imxrt1050. Tracing works in Ozone so I can safely assume that the trace pins & clock are correctly initialised.

Thank you for the detailed instructions. I will attempt this when I return to the office in 5 weeks.

Thanks,

Patrick

SEGGER - Nino · Aug 31st 2018, 10:16am

Hello Patrick,

Quick update.
We also offer now trace reference boards based on the iMX 1050 series: segger.com/products/debug-prob…050-trace-reference-board
In the linked Wiki article you can find example projects to get trace running right of the bat.

Best regards,
Nino

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