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CCS: How to modify the size of C71 L2 cache?

jacky.wong
Intellectual 340 points

Tool/software: Code Composer Studio

Hi,

    In psdk_rtos_auto_j7_06_02_00_21/vision_apps, the C71 L2 cache configured to 32KB.

    I want to set all L2(512KB) to cache, what should I do?

thanks.

  • 0
    TI__Genius 10355 points

    Can you try changing the value to 512KB?

    vision_apps/apps/basic_demos/app_tirtos/tirtos_linux/c7x_1/c7x_1.cfg

    Cache.initSize.l2Size  = Cache.L2Size_512K;

    Also 448KB is configured as L2 SRAM so you will have move that space to DDR,

    vision_apps/apps/basic_demos/app_tirtos/tirtos_linux/c7x_1/linker.cmd

        .bss:l2mem              (NOLOAD)(NOINIT) : {} > DDR_C7x_1 /*L2RAM_C7x_1*/

    Regards,
    Shyam

  • 0 in reply to Shyam Jagannathan
    Intellectual 340 points

    Hi,

        Thanks for your reply.

        I had changing the value to 512KB base on your advise, but the performance of our project have no change.

        Can you tell me, how to check the L2 cache size after config?

    Thanks.

  • 0 in reply to jacky.wong
    TI__Guru**** 156610 points

    Hi,

    L2 cache size control register which has the L2 size.