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

jacky.wong

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 Shyam Jagannathan over 4 years ago

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 jacky.wong over 4 years ago in reply to Shyam Jagannathan

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 Keerthy J over 4 years ago in reply to jacky.wong

Hi,

L2 cache size control register which has the L2 size.

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