TMDS64EVM: IPC build Issue

Hello Raj,

Thanks for reaching out to Texas Instruments E2E support forum.

Can you please tell which version of MCU+SDK are you using?

Regards,

Tushar

Hello Raj,

The above issue is coming because the example.syscfg file for cores(other than r5fss0-0) does not define the USER_SHM_MEM, LOG_SHM_MEM, and RTOS_NORTOS_IPC_SHM_MEM section of the memory.

This issue is coming because of the introduction of memory configurator tool which generates linker.cmd file based on the parameters configured.

This is happening because r5fss0-0 is adding these regions and marking them as shared with those other cores. There's a dependency here as we can see where the only independent core in this case is r5fss0-0 and rest others depend on this.

To build the example for individual core, please add the above mentioned section in the example.syscfg file of the project.

Please find below changes.

USER_SHM_MEM:

LOG_SHM_MEM:

RTOS_NORTOS_IPC_SHM_MEM:

Note : Now when you build system project, there will be conflict coming from the independent core sharing these regions and your current core under test as both have the same regions added twice. Then we will have to remove those from the dependent ones.

Hope the above information helps.

Regards,

Tushar

Hello Raj,

Raj Kumar said:

when i try to build project it is showing error as mentioned in below screenshot can you help out.

The above issue is coming because IPC examples now cannot be build for individual cores. They should be built as a system project.

It's because data from all Sysconfig core contexts are used while generating code. 

For more info please refer https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1324828/faq-mcu-sdk-build-error-expected-expression-rpmsgparams-vringtxtaseaddr 

Regards,

Tushar

Hello Tushar,

as per the previous replay i build the ipc examples as a system project .i can able to see in my linux system terminal

" Boot multi-core image: /home/user/ti/mcu_plus_sdk_am64x_09_01_00_41/examples/drivers/ipc/ipc_rpmsg_echo_linux/am64x-evm/system_freertos/ipc_rpmsg_echo_linux_system.release.appimage.hs_fs Done !!! " as a result .

i have some doubts as mentioned below,
1. after build the system project ,how to import that into ccs ,i tried with a regular way File->import->project->Browse. and after importing i try to flash the code into one of the core i can't able to find the binary(.out) of the project and debug folder was empty in project explorer do i need to build again ?how can i open and flsah the cores through ccs?

2.in other case i am trying to implement the ipc(rpmsg) between r5-0_0  and m4 core so i have   enabled the ipc notify+rmnsg for m4 and r50_0 ,remaining all are disabled in example.sysconfig  and i try to compile the project and i am getting the error mentioned below

" recipe for target 'syscfg/ti_drivers_config.o' failed
syscfg/ti_drivers_config.c:203:88: error: expected expression
rpmsgParams.vringTxBaseAddr[CSL_CORE_ID_M4FSS0_0] = (uintptr_t)(&gIpcSharedMem[]);
^
1 error generated."

how can i build this project and flash into the r5 and m4 core ?

3. i am trying to run the ipc_echo_notify example code for two cores i build  it and flash the code into r5 and m4 but it is not printing  any print statements on the terminal or console but core are running ?is this the correct way to flash echo_notify binaries INTO cores?

4.To achieve the ipc with examples ,can we flash the same example (rpmsg)in the two cores or one core loaded with a ipc_echo_notify and other with a ipc_rpmsg ?

5.how to add the resource table in a project to flash/boot the remote cores in Linux ?

thankyou,

Raj Kumar

Hello Raj,

Thank for your reply.

Raj Kumar said:

1. after build the system project ,how to import that into ccs ,i tried with a regular way File->import->project->Browse. and after importing i try to flash the code into one of the core i can't able to find the binary(.out) of the project and debug folder was empty in project explorer do i need to build again ?how can i open and flsah the cores through ccs?

After importing the system project into CCS, it will automatically import the projects for individual cores specified in the system.xml file. Please build the system project example and it will build the project for all individual cores. The binaries can be found in the Debug/Release folder of each project that is build during system project build steps.

Raj Kumar said:

2.in other case i am trying to implement the ipc(rpmsg) between r5-0_0  and m4 core so i have   enabled the ipc notify+rmnsg for m4 and r50_0 ,remaining all are disabled in example.sysconfig  and i try to compile the project and i am getting the error mentioned below

" recipe for target 'syscfg/ti_drivers_config.o' failed
syscfg/ti_drivers_config.c:203:88: error: expected expression
rpmsgParams.vringTxBaseAddr[CSL_CORE_ID_M4FSS0_0] = (uintptr_t)(&gIpcSharedMem[]);
^
1 error generated."

how can i build this project and flash into the r5 and m4 core ?

The following FAQ  provides the explanation to build the IPC example for a single R5F core. If you want to enable IPC between R5F0 and M4F core only, then please disable the IPC between other cores in the example.syscfg file of both M4F and R5F project as shown in below picture.

Raj Kumar said:

i am trying to run the ipc_echo_notify example code for two cores i build  it and flash the code into r5 and m4 but it is not printing  any print statements on the terminal or console but core are running ?is this the correct way to flash echo_notify binaries INTO cores?

Can you please pause the cores and check where the program is getting stucked?

Raj Kumar said:

4.To achieve the ipc with examples ,can we flash the same example (rpmsg)in the two cores or one core loaded with a ipc_echo_notify and other with a ipc_rpmsg ?

Sorry, I didn't understand the question completely. Do you want one core(say M4F) to do IPC notify and the other core (say R5F) to do IPC RPMSG. Is this understanding correct?

Raj Kumar said:

5.how to add the resource table in a project to flash/boot the remote cores in Linux ?

Please refer MCU+SDK update linker file section for more details.

Regards,

Tushar

Hello Tushar,

Thnakyou for your support !

i am running M4 and R5-0_0 core with ipc_nottify_echo .And it is printing as mentioned below

[IPC NOTIFY ECHO] Message exchange started by main core !!!
ASSERT: 0.3491s: ../ipc_notify_echo.c:ipc_notify_echo_main_core_start:166: status==SystemP_SUCCESS failed !!!

I disable the all ipc except m4 and r5-0_0(ipc_notify both) in example.sysconfig.

why it is fail in between

Hello Raj,

Raj Kumar said:

[IPC NOTIFY ECHO] Message exchange started by main core !!!
ASSERT: 0.3491s: ../ipc_notify_echo.c:ipc_notify_echo_main_core_start:166: status==SystemP_SUCCESS failed !!!

Can you please confirm have you also updated the gRemoteCoreId[] array in the ipc_notify_echo.c file?

If not, please update the list of remote cores in ipc_notify_echo.c file.

Please refer below code changes.

uint32_t gRemoteCoreId[] = {
    CSL_CORE_ID_M4FSS0_0,
    CSL_CORE_ID_MAX /* this value indicates the end of the array */
};

After making the above changes the example should work fine.

Please let me know if the above solution works.

Regards,

Tushar

Hello Tushar,

Yes,It is working and thankyou for your support

Regards,

Raj Kumar.

Hello Raj,

Raj Kumar said:

Yes,It is working and thankyou for your support

Thanks for the confirmation. Happy to help

Regards,

Tushar

Hello Raj,

Can you please check that the UART logs are enabled in the example.syscfg?

Please refer image below.

Regards,

Tushar

Hello Raj,

Raj Kumar said:

1.Since it is a ipc example ,we have to build as a system project and i have made some changes with ccs so, how can i build it as a system project in ccs?

To build the IPC RPMSG echo example for R5F0-0 and M4F0-0 core, please follow below steps.

•  Import the ipc_rpmsg_echo example as a system project.
• After importing the project open the system.xml file of the system project.
• Remove the project for all the cores which are not being used. Please refer below screenshot.

• Disable all the IPC in example.syscfg for the cores which are not using IPC. (i.e. cores other than M4F0-0 and R5F0-0)

• Remove the not used CPU cores from the gRemoteCoreId [] array and save all the changes.
• Build the system project.

After following the above steps, You will be able to see the binaries are getting generated for core specific projects. 

Please let us know if the above solution works.

Thanks & Regards,

Tushar

Hello Raj,

Raj Kumar said:

I modified the rpmsg_echo_linux example as a ipc between M4 and R50_0 it is working fine.

Thanks for the confirmation.

Can you please create separate threads for each question as it covers different topics?

Please create new threads for each query so that we can assign it to right experts.

Regards,

Tushar