TIDL example on Beagle-Bone AI

Hello,

I was trying to run TIDL segmentation example provided in debian@beaglebone:/usr/share/ti/examples/tidl/segmentation using ./segmentation. but it is raising following error:

debian@beaglebone:/usr/share/ti/examples/tidl/segmentation$ ./segmentation

CMEM Error: init: major version mismatch between interface and driver.

CMEM Error: needs driver version 0x4150002, got 0x4160000

TIOCL FATAL: The cmemk kernel module is not installed. Consult the OpenCL UserGuide at http://software-dl.ti.com/mctools/esd/docs/opencl/index.html

My kernel version is:

4.19.94-ti-r36

I have updated kernel from 4.14. Is that causing problem?

How can I recompile the codes which use TIDL library?

If I try gcc main.cpp in same segmentation folder it raises

debian@beaglebone:/usr/share/ti/examples/tidl/segmentation$ gcc main.cpp

main.cpp:44:22: fatal error: executor.h: No such file or directory

#include "executor.h"

compilation terminated.

Also can we use TIDL in python?

Thanks.

0 bender3467 over 5 years ago

As far as I know it's still necessary to use 4.14 kernel. Instructions to downgrade are here
BeagleBone AI Survival Guide V3.18: PWM, I2C, Analog/Digital Read/Write, Vision AI, Video Text Overlays, Audio, & Hardware

Next month (Apr 2020) a new image for the BBAI is supposed to come out and the kernel restriction may change.
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0 prathamesh12 over 5 years ago in reply to bender3467

Thanks Bernard.Hope they change restrictions soon.
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0 jomoenginer over 5 years ago

You might want to post this on the BeagelBoard Google forum.

However, you may what to have a look see at the following:
https://github.com/beagleboard/cloud9-examples/issues/16
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0 prathamesh12 over 5 years ago in reply to jomoenginer

Hi
Issue they are mainly discussing here is with cloud9-examples. There are other examples present in /var/share/ti/examples.
I can not compile the codes they have provided.
After degrading kernel, I am able to run pre-compiled files. But still I can't modify existing code or use tidl api in new code and compile it with gcc.

debian@beaglebone:/usr/share/ti/examples/tidl/segmentation$ gcc main.cpp -I/usr/share/ti/tidl/tidl_api/inc/
In file included from main.cpp:44:0:
/usr/share/ti/tidl/tidl_api/inc/executor.h:41:20: fatal error: custom.h: No such file or directory
#include "custom.h"
^
compilation terminated.

Where can I find this custom.h

Thanks.
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0 Sean_Miller over 5 years ago in reply to prathamesh12

In the cloud9 environment, you need to set the runner to the beagle make file.
see ya
sean
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0 prathamesh12 over 5 years ago in reply to Sean_Miller

Hi sean,
Cloud9 classification example is running absolutely fine.
I am trying to compile other examples provided in /usr/share/ti/examples/tidl directory.
Thanks.
Prathamesh
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0 marisol over 5 years ago

Hi,

The switching of the Kernel is the problem.
Get the latest 4.14 and you should be OK. Make sure all the components are the latest as well via 'sudo apt update; sudo apt upgrade -y'.

Hope that helps!
Marisol
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0 jomoenginer over 5 years ago in reply to marisol

Yeah, there is more to the upgrade than just doing the standard apt-get stuff:

See:
https://beagleboard.org/upgrade

However, this process, as well as the latest release of 4.14, have issues:
See:
https://mail.google.com/mail/u/0/?tab=rm&ogbl#search/tidl/FMfcgxwHMZGdmCsHNZJdHgvlmfqVZjNv
https://github.com/beagleboard/cloud9-examples/issues/28

For the Spring 2020 release, see:
https://github.com/beagleboard/Latest-Images/issues/22
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