I have the B-L4S5I-IOT01A STM32L4S5 Discovery Kit. I followed a ST article and an online video to enable Tracex, but these are calling out a different platform. The RAM starting address for my kit is 0x20000000, but running the program I see in memory HEX view at 0x20000E20 and there is no data in memory only ????. Is there some sort of offset needed for the _FLASH.ld file for .trace?

Hi @Sean Liming - wow, that is actually a pretty good article for how to get TraceX going with the ST tools. I wouldn't worry about creating a ".trace" section in your linker file, so you can ignore the attribute keyword when declaring your trace buffer. Instead, just look at the map file to see where your trace buffer starts, and export the trace buffer starting at that address. Let me know if that works for you.

Enable TraceX on B-L4S5I-IOT01A STM32L4S5 Discovery Kit

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Scott Azure RTOS 4,051 Reputation points

2022-08-26T15:17:34.86+00:00

Hi @Sean Liming - wow, that is actually a pretty good article for how to get TraceX going with the ST tools.

I wouldn't worry about creating a ".trace" section in your linker file, so you can ignore the attribute keyword when declaring your trace buffer. Instead, just look at the map file to see where your trace buffer starts, and export the trace buffer starting at that address. Let me know if that works for you.
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Sean Liming 4,601 Reputation points

2022-08-26T18:52:15.763+00:00

What I have in the STM32L4S5VITX_FLASH.ld is the following:

.trace (NOLOAD):
{
. = ALIGN(4);
*(.trace)
} >RAM

The attribute is not there. The step I missed was to pause the debug process, which now I did, and I can see the memory is filled up with data. The Tracex application pops a message "Invalid Trace File ID" when I try to open the .trx file. Any ideas?

Scott Azure RTOS 4,051 Reputation points

2022-08-31T23:29:19.92+00:00

Ah, good, you're generating a trace file. Can you attach the file here? I'll take a look at it.

AshokPeddakotla-MSFT 34,616 Reputation points

2022-09-06T07:26:37.737+00:00

@Sean Liming Could you share the requested information for further assistance?

Sean Liming 4,601 Reputation points

2022-09-07T18:11:52.613+00:00

I have uploaded the file. Just change the extension.

238746-tracex-logtrx.log

Sean Liming 4,601 Reputation points

2022-09-08T16:35:48.073+00:00

Done.

Scott Azure RTOS 4,051 Reputation points

2022-09-08T16:53:07.617+00:00

Hi @Sean Liming - for some reason, I'm no longer getting email alerts to responses. Can you please tag me in your response. I took a look at your file and it is all NULL, so I don't think you are extracting the correct memory from your system.

Sean Liming 4,601 Reputation points

2022-09-08T18:46:09.297+00:00

@Scott Azure RTOS - went back over the ST article. Looks like they updated the article, and now I am getting the correct exported .trx file and can see all the data in TraceX. Thanks.

Girish Kumar 6 Reputation points

2022-11-19T13:15:18.537+00:00

I am looking for the article which explains how set up TraceX on B-L4S5I-IOT01A STM32L4S5 Discovery Kit

Girish Kumar 6 Reputation points

2022-11-20T05:02:44+00:00

Thanks you very much ScottAzureRTOS for your recommendation

I I skipped .trace section in linker file and ignored the attribute keyword, and took the address of my trace buffer from .map file and it worked perfectly.

Once again Thanks a lot

Scott Azure RTOS 4,051 Reputation points

2022-11-21T16:32:46.167+00:00

The article is linked in the original post: https://community.st.com/s/article/how-can-i-add-tracex-support-in-stm32cubeide
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