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[TDA4M] How can I do dynamic memory allocation like a malloc fuction in psdk?

Yongsig Do
Expert 1690 points

Hi , guys

I was wondering How I could do dynamic memory allocation like a malloc function in vision apps of psdk.

I've found several example such as udma_memcpy_test and udma_dru_test. You know there aren't any memory allocation function.

I think I should memory allocation functions to run my CNN which needs a lot of kernel and data.

Actually, I used that function on tda2x environment.

Please check it, and let me know how to use memory allocation function based on openVX in vision_apps.

Best regards,

Yongsig.

  • 0
    TI__Mastermind 42515 points

    Hi Yongsig,

    can you check this document and see if it can help you: psdk_rtos_auto_j7_06_00_00_00/vision_apps/docs/user_guide/group__group__vision__apps__utils__mem.html

    Regards,

    Yordan

  • 0 in reply to Yordan Kamenov
    Expert 1690 points

    Hi, Yordan

    First of all, thank you for your reply.

    I read that document and It was definitely helpful.

    I would like to know one more thing. Its a sequence to allocate memory.

    I was wondering if you could recommend a sequence to allocate memory either DDR or any cache.

    As an example, If I try allocating cache memory, should I do as below?

       - appMemInit --> appMemAlloc(Heap ID is L1) --> appMemFree 

    Best regards

    Yongsig.

  • 0 in reply to Yongsig Do
    TI__Mastermind 42515 points

    Hi Yongsig,

    you can look at psdk_rtos_auto_j7_06_00_00_00/vision_apps/apps/basic_demos/app_linux_arm_mem/main_linux_arm.c

    You can have sequence like:

    appCommonInit()   // this function calls appMemInit() and does some other initializations

    appMemAlloc()

    appMemFree()

    appCommonDeInit()

    Regards,

    Yordan