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TMS320C6657: [TMS320C6657] how to configure cfg file to enable inter-core communication between 2 cores using shared region and message Q

yoonseok shim
Intellectual 800 points
Part Number: TMS320C6657

Hi.

as the title said, I'd like to know how to configure both cfg file to make share region and message Q available.

and my plan is to get two cores share data vwith message Q via shared memory.

Could you give me any example that I can adjust my application?

especially I have been looking up the configuration example of shared region. however I am quite confused same configuration should be included in both cfg file of two cores.

for example, I am not sure that I have to include the below configuration in each cfg file

sharedRegion.setEntryMeta(0,{

...

..})

Please show me the best practice for enabling the modules. I need your help so much.

Regards,

ysshim

  • +1
    TI__Mastermind 19805 points

    Dear Customer,

    By any chance, have you practiced the example, that I have answered to your previous e2e query below?? Please practice that example. Because, that example has the configuration file which enables the shared memory region and the message Q.

    https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1057109/tms320c6657-tms320c6657

    In the IPC-SRC example, you will find the configuration file, located at C:\ti\pdk_c665x_2_0_16\packages\ti\transport\ipc\c66\srio\example\c6657\c66\bios\bench_srio.cfg

    In this cfg file, you can observe the initialization of sharedmemory and the message Q.

    IPC_SRIO - This is the " Example application that uses the SRIO IPC transport to send* MessageQ messages between two DSP cores. "

    Regards

    Shankari G

  • 0 in reply to Shankari G
    Intellectual 800 points

    Dear, Shankari G

    what I am curious about is the both cfg file of two cores use the same 'bench_srio.cfg' ?

    I am guessing configuring cfg file would be different based on which core.

    I understand there are tons of example and materials talking about IPC module usage

    but it is quite hard for me as a beginner to find the correct examples that meet my need and how to run those.

    I am still working on it following the instructions and examples described in this document ''SYS/BIOS IPC 1.25" and studying the example you showed me.

    but I am facing unexpected issue such as getting stuck into 'IPC_start' function after I include Multiproc module initialization in cfg files. 

    and I still don't know why.

    Thank you so much for your sincere help. I want to solve it for my project team.

    Regards

    ysshim

  • 0 in reply to Shankari G
    Intellectual 800 points

    Dear, Shankari G

    when I run the SRIO example.

    message on my console window is different from a footage you showed me before.

    core 0 and core 1 MessageQ_create failed.

    what happen?

    and what i notice is that when 'IPC_Start' function run on both cores only with ipc and sharedregion configuration on cfg file.

    I got a 'success' message from 'IPC_Start' function on both core. however when I add Multiproc configuration on both cfg files 

    codes are stuck into IPC_start function.

    i just copied Multiproc configuration from SRIO example to my applications.

    I don't know why...

    Regards

    ysshim

  • 0 in reply to yoonseok shim
    TI__Mastermind 19805 points

    Dear Customer,

    Please post your error messages and the screenshot of CCS. Let us solve them.

    It worked for me. So it should directly work for you too.

    Regards

    Shankari G

  • 0 in reply to Shankari G
    Intellectual 800 points

    Dear Shankari G 

    I have created new projects for simple test on IPC configuration.

    the issue I have had on Maltiproc doesn't happen with new projec, which makes me examine my previous application.

    the test of running the SRIO example failed yesterday was carried out with a hardware module that my team developed. 

    so I changed it to 6678 EVM and I tried the example again. and I verified it worked fine as you showed me before.

    It seems to be ok with me to go next step.

    you are the best.

    Regards,

    ysshim

  • 0 in reply to yoonseok shim
    TI__Mastermind 19805 points

    Dear ysshim,

    That's a great news. You made it man!.

    By the way, you are best too!.

    As it now works for you, with your permission,  shall I close this thread ?

    Regards

    Shankari G

  • 0 in reply to Shankari G
    Intellectual 800 points

    Yeah good to close 

    Regards,

    ysshim