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AWR2944: R5F TCM memory performance

Part Number: AWR2944
Other Parts Discussed in Thread: AM6548,

Hi expert,

Recently customer want to use TCM memory in R5F for some critical data. But we did memcpy test on TCMB it looks the throughput is lower than expected. 

We used memcpy function to copy 8192 bytes from 0x82000 to 0x80000, it need ~50000 cycles, almost 6 cycles per one byte.

TCM -> TCM memcpy copy 8192 bytes in 49227 cycles

According this post on AM6548, R5F should load every byte in 1 cycle on TCM memory.

Here is my test project on AWR2944. Could you please check if there is anything i missed?

Thank you.

 https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/1023/tcm_5F00_mem_5F00_test.7z

Regards,

Allen