TMS320F28379D: Problem debugging the old project in CCS 12.7

OLEG KOBRIN

Part Number: TMS320F28379D
Other Parts Discussed in Thread: LAUNCHXL-F28379D, C2000WARE

Tool/software:

Good afternoon.

I am working now with the old project based on Delfino MCU. The project was originally created about 4 years or more ago.

The project starts and running but I have problems with watching variables and seeng graphs.

When I try to display graph for float data, I get message "float[1] is 16", and in watch window I see incorrect values too. The almost same problem with integer values. Before, when project was debugged 4 years ago , the debugging was ok.

Reading the datasheet I found the byte size on C2000 is 16bit, so it could be the cause. How to avoid this behafiour?

6 months ago

0 Ozino Odharo 6 months ago

TI__Mastermind 21005 points

Hi Oleg,

Can you provide more information as to the compiler and CCS version you are using. Are you observing any warnings when building the project and generating .out file?

Can you also share the part number of the device you are using.

Regards,

Ozino

0 OLEG KOBRIN 6 months ago in reply to Ozino Odharo

Prodigy 155 points

Compiler is 22.6.1 LTS. No warnings during build.

Output format is legacy coff

Device is LAUNCHXL-F28379D

0 Ozino Odharo 6 months ago in reply to OLEG KOBRIN

TI__Mastermind 21005 points

How are the variable that you are trying to plot defined? Are they floating point values or integer values (16 or 32-bit)? Are you using the CCS graph feature? Can you share a screenshot of when the error is displayed. Thanks.

0 OLEG KOBRIN 5 months ago in reply to Ozino Odharo

Prodigy 155 points

This is a float array. I am using CCS Graph.

0 Ozino Odharo 5 months ago in reply to OLEG KOBRIN

TI__Mastermind 21005 points

Thank you.

Let me forward this post to the CCS team for further assistance.

Regards,

Ozino

0 Ki 5 months ago in reply to OLEG KOBRIN

TI__Guru**** 467591 points

Hi Oleg,

OLEG KOBRIN said:

This is a float array. I am using CCS Graph.

The link to the screenshot is broken. Can you reattach?

Screenshots of the expressions view would also be helpful.

OLEG KOBRIN said:
Before, when project was debugged 4 years ago , the debugging was ok.

I assume you were using a much older CCS version. Do you recall the version? I also assume you were using an older compiler version.

OLEG KOBRIN said:
Output format is legacy coff

There have been some other reports of debug issues with legacy COFF output. Is ELF output ok?

Thanks

0 OLEG KOBRIN 5 months ago in reply to Ki

Prodigy 155 points

https://clip2net.com/s/4mCL0og

0 Ki 5 months ago in reply to OLEG KOBRIN

TI__Guru**** 467591 points

OLEG KOBRIN said:
clip2net.com/.../quote]
This link is apparently blocked by our IT. I will take a look on my home PC.

0 Ki 5 months ago in reply to Ki

TI__Guru**** 467591 points

Thank you for the image.

Ki said:
I assume you were using a much older CCS version. Do you recall the version? I also assume you were using an older compiler version.

Ki said:
There have been some other reports of debug issues with legacy COFF output. Is ELF output ok?

Can you also provide answers to the above earlier questions?

Thanks

0 OLEG KOBRIN 5 months ago in reply to Ki

Prodigy 155 points

Ki said:
Do you recall the version?

I assume it was 6 or 7.

Ki said:
Is ELF output ok?

I tried, the project does not build. Also it uses C2000ware 3.

0 Ki 5 months ago in reply to OLEG KOBRIN

TI__Guru**** 467591 points

I can reproduce the same error if I try to open a graph by using the graph option in the context menu for the variable in the Expressions view. I assume this is what you tried also. I only get when trying to reference the top node of in the Expressions view for the array. If I expand and use on of the values underneath, then the issue does not occur. Or you can just manually open the graph and add the address/variable manually.

If you didn't have this issue with an older CCS version, then it could be that there was some sort of regression. Since CCS Eclipse (and the graph view it comes with) is no longer supported, it is unlikely that this issue will be fixed.

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TMS320F28379D: Problem debugging the old project in CCS 12.7