CCS/PROCESSOR-SDK-DRA8X-TDA4X: How to debug Vision Apps examples

Gildardo

Part Number: PROCESSOR-SDK-DRA8X-TDA4X

Tool/software: Code Composer Studio

Hi, I am trying to debug the Vision Apps examples, specifically the image classification on target TDAV4M
(software-dl.ti.com/.../group_apps_dl_demos_app_tidl.html)

I have built the SDK with debug PROFILE, and copied to the SD card as indicated in:

software-dl.ti.com/.../INCREMENTAL_UPDATE_AND_DEBUG.html

The following files were created:
/vision_apps/out/J7/A72/LINUX/debug/vx_app_tidl.out
/vision_apps/out/J7/A72/LINUX/debug/vx_app_tidl.out.map

Now I want to debug with CCS, but the Vision Apps User Guide give no more information.

The processor-sdk-rtos documentation shows different possibilites: (software-dl.ti.com/.../ccs_setup_j721e.html)

* Load RTOS/baremetal application binaries thru CCS
* Using CCS Debug with Linux on A72

I tried both with no success.

Could you please indicate which steps should I follow, for example, which files need to be loaded to which core, and how to do that?, specific settings like boot mode (SD boot, No boot) or which target configuration to use (gel or no gel) , and whether I have to execute some scripts like launch.js or launch_tidl.js.

Kind Regards

Gildardo

over 5 years ago

0 Karthik Ramanan over 5 years ago

TI__Guru** 113810 points

Hi Gilardo,

Could you please describe the methodology to run your application - are you using the SD boot with Linux running and launch the OpenVx application?

I will expand from there.

Regards

Karthik

0 Gildardo over 5 years ago in reply to Karthik Ramanan

Prodigy 210 points

Hi Karthik,

Yes, so far I followed the instructions here

software-dl.ti.com/.../BUILD_AND_RUN.html

to run it. I copied the executables to the SD card with the script

make linux_fs_install_sd

and booted in SD boot. Then just execute

source ./vision_apps_init.sh
./run_app_tidl.sh

Best

Gildardo

0 Karthik Ramanan over 5 years ago in reply to Gildardo

TI__Guru** 113810 points

Hi Gildardo,

Ok, thanks for the quick response.

In this scenario, you need to use this procedure:

http://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-jacinto7/latest/exports/docs/psdk_rtos_auto/docs/user_guide/ccs_setup_j721e.html#using-ccs-debug-with-linux-on-a72

And make sure that the target configuration has No GELs.

Launch the Target configuration, there is no need to run any launch.js.

Simply connect to the core and then load symbols etc as per usual.

Regards

Karthik

0 Gildardo over 5 years ago in reply to Karthik Ramanan

Prodigy 210 points

HI Karthik,

I managed to load symbols but still I cannot debug the code. Not sure I am loading the correct file, I am using

/vision_apps/out/J7/A72/LINUX/debug/vx_app_tidl.out for dl_demos/app_tidl, is it correct?

So basically the application keeps running and i cannot break into a line. If pause the execution, it stops in pthread_cond_timedwait where no source is available. How can I add the source to the debugger and create a breakpoint?

Best

Gildardo

0 Karthik Ramanan over 5 years ago in reply to Gildardo

TI__Guru** 113810 points

Hi Gildardo,

Its good to know that you are now able to connect, halt and see things taking effect.

Is your intent to debug the Linux user space application running on the A72? I'm not sure if this is the recommended method - I will double check.

However, we use this method to debug the firmware on the other cores such as R5F, C66, C7x etc for which the next steps would be to load symbols, point to your source code and then you can halt/connect and set breakpoints on the source code.

Regards

Karthik

0 Gildardo over 5 years ago in reply to Karthik Ramanan

Prodigy 210 points

Hi Karthik,

I dont watn to debug the firmware but the Vision Apps examples.

The application is pre-built with make with debug profile, therefore the source code is not loaded into CCS. I would expect that, when loadiing the .out fiiles as symbols, I would have access also to the source code when halting. That is one of my question, How to point to the source code?

On the target terminal (minicom) I can see the expected output, but on the CCS side, it just keep running and I cannot step into or breakpoint. I just can pause the execution and resume.

Best

Gildardo

0 Lucas Weaver over 5 years ago in reply to Gildardo

TI__Genius 13845 points

Hello Gildardo,

For debugging on the A72 Linux, we do not support debugging using CCS. This is only available for debugging on the remote cores.

We have gdb included in the default filesystem which you can use to debug on A72. For more information, please see below:

www.gnu.org/.../

Regards,

Lucas

Processors

Processors forum

CCS/PROCESSOR-SDK-DRA8X-TDA4X: How to debug Vision Apps examples