AM263P4: System Project

Marcel Pfeifer

Part Number: AM263P4
Other Parts Discussed in Thread: UNIFLASH

Hello Experts,

iam using CCS version 12.8.1.00005 and have some qeustions regarding System projects.

I've two softwares SW1 and SW2 and want them to be flashed on Core 0 and Core 2 (so both can run in lockstep).
For easier debugging and a better overview i created a systemproject out of these 2 Projects.

First of all, when i hit build in SW1 now always the system project is builded too. I don't want this. I only want system project to be build when i hit the build button in system project. How can i change this, so that only SW1 is build?

Now my customer has the following injection. If there is a bug in SW1 he only wants an update of SW1 in the system project. Because at the moment both SW get rebuild if i build the system project. And this means he is used to test SW2 also because its complied again and the compiler could make mistakes even when the code for SW2 hasn't change.
Can i control this by changing makefile_ccs_bootimage_gen?

Best regards,

Marcel

2 months ago

0 Shaunak Deshpande 2 months ago

TI__Mastermind 18972 points

Hi Marcel,

Do you mind sharing your CCS systems project as a zip here?

I tried to reproduce the same by importing a systems project in CCS. When i right click and build any individual core project, I am able to specifically build that project. I would need your help to reproduce this issue

Regards,
Shaunak

0 Shaunak Deshpande 2 months ago

TI__Mastermind 18972 points

Marcel Pfeifer said:
For easier debugging and a better overview i created a systemproject out of these 2 Projects.

Can you also let me know what exact steps were followed to convert your independent projects to systems projects?

0 Marcel Pfeifer 2 months ago in reply to Shaunak Deshpande

Intellectual 345 points

Hey Shaunak,
i don't wanna share my project, but you can see it at the a example project aswell: empty_am263px-lp_system_nortos

When i now choose empty_am263px-lp_r5fss0-0_nortos_ti-arm-clang, change something like comment out "DebugP_log("All tests have passed!!\r\n");" and hit the run buttom. My console first showes for a very short time CDT Build Console [empty-am263px_lp_system_nortos] then shows this:

and after that this:

and i see in both debug folders new created files. So both the normal project and the system project get build. But i only want the normal project to get build. The system project should only get build, when i hit the build button at system project.

Regards,
Marcel

0 Marcel Pfeifer 2 months ago in reply to Shaunak Deshpande

Intellectual 345 points

created this some time ago, but i think i used this guide: software-dl.ti.com/.../appnote-system_project_debug_launch.html

0 Shaunak Deshpande 2 months ago in reply to Marcel Pfeifer

TI__Mastermind 18972 points

Hi Marcel,

I believe there is a confusion between .mcelf and .out here.

When working with multicore applications (systems projects), the build-infra will create a common .mcelf file that can be flashed to the device (using UniFlash or python scripts).

When you just select R5FSS0_0 project and build, it re-builds the project, and then since there are changes in one of the cores, the whole mcelf image needs to be re-generated.

The C0 here is core-0 (or r5fss0-0). So out of the 4 cores, even if you selectively build a single project, the .mcelf will still have to be re-generated as it contains information from all the cores. It is not exactly compiling and building the code for all other cores, but only the core you select for, and then it generates the .mcelf image combining the .out binaries for all cores.

I hope this clears the confusion.

Regards,
Shaunak

0 Marcel Pfeifer 2 months ago in reply to Shaunak Deshpande

Intellectual 345 points

Hey Shaunak,

so after i build R5FSS0_0 project the makefile_system_ccs_bootimage_gen of the system project is called to generate the new mcelf?
Can i see it anywere in my project options/settings that the makefile_system_ccs_bootimage_gen is linked to my build process?

regards,

Marcel

0 Shaunak Deshpande 2 months ago in reply to Marcel Pfeifer

TI__Mastermind 18972 points

Hi Marcel,

You can find the call in post-build steps in the makefile used to build the project:

Regards,
Shaunak

0 Marcel Pfeifer 2 months ago in reply to Shaunak Deshpande

Intellectual 345 points

I thought so aswell, but this is only the own mcelf makefile what is called. The mcelf file for the system is named makefile_system_ccs_bootimage_gen and i couldn't find it anywere called.

0 Shaunak Deshpande 2 months ago in reply to Marcel Pfeifer

TI__Mastermind 18972 points

Looks like there is some interlinked dependencies for systems projects,

I'm not able to find it directly, I'll have to discuss with the SDK team who have worked on this infra. But logically it does seem correct, changes in any core's project should lead to combined mcelf image re-generation. Probably some gmake command being executed from parent directory invokes the makefile_system_bootimage_gen call as well. I would need some time to discuss and get back.

Regards.
Shaunak

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AM263P4: System Project