TMS320F28379D: Adding CLA to a Sys/Bios project

user6452652

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

Hi,

I am trying to add a CLA interruption in the CPU1 project.

I have use the cla_ex1_asin project as example:
1- Set the CLA memory
2- Configure the CLA tasks and active the IACK to call the interrupt from a Sys/bios task
3- Add a led blink in a Sys/bios task and in the CLA interrupt

The project builds without errors but when I debug it, in the Debug window the following error appears:
"_args_main() at args_main.c:133 0x08AFB0 (an error occurred: Attemped to read past the end of the memory at FFFFFFFFFFFFFFFE@Data"
The CPU1 works but I cannot even load the symbols in the CLA.

Attached you can find the project.

Thank you in advance!

Regards

tms320f28379d_dual_template.rar

over 4 years ago

0 Whitney Dewey over 4 years ago

TI__Guru 53765 points

I uncommented the __attribute__((interrupt)) in the CLA function definition and was able to get both LEDs blinking on my board.

Whitney

0 user6452652 over 4 years ago in reply to Whitney Dewey

Prodigy 120 points

Than you for your response, now the CLA is working. But the error that I said before remains.

I have seen that if the CLA_mapTaskVector() functions in initCpu1Cla1() are commented the error disappears, so I suppose that they are related but I do not understand why. Other the C2000Ware examples use the same configuration and didn't have this error.

Kind regards

0 Whitney Dewey over 4 years ago in reply to user6452652

TI__Guru 53765 points

I didn't see that error when I tried the project. It shows up when you load the .out? But it doesn't actually prevent the code from running though, right?

What version of CCS are you using?

Whitney

0 user6452652 over 4 years ago in reply to Whitney Dewey

Prodigy 120 points

Yes, when I click on the Debug button, the project is compiled without errors but programming process finishes and the debug session stops in the main() init I can see the error in the Debug window. See in the picture the difference between CPU1 and CPU2.

If I click on the run button the program apparently works, but I do not know if there can be a problem that I cannot see now.

I am using a TMDSCNCD28388D evaluation board with CCS v10.1.1, SYS/BIOS 6.83.0.18, XDCTools 3.61.0.16 and C2000Ware 3.3.0.0.

Thanks!

0 user6452652 over 4 years ago in reply to user6452652

Prodigy 120 points

Sorry, I'm using a LAUNCHXL-F28379D, I took the wrong box.

0 Whitney Dewey over 4 years ago in reply to user6452652

TI__Guru 53765 points

Okay, I've spotted it in my environment now too. I don't get it right on loading, but if I let the application run for a bit and halt it, it's there, usually next to the name of some function called in the SYSBIOS Idle loop. I don't think it's an indicator of a real problem since the code is running fine, and ROV isn't showing any errors.

I'll copy the CCS team though and see if they can provide more insight since I'm not familiar with what exactly this error means.

Whitney

0 user6452652 over 4 years ago in reply to Whitney Dewey

Prodigy 120 points

Thank you Whitney

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TMS320F28379D: Adding CLA to a Sys/Bios project