DRA80XMEVM: Performance measurements on the C7x DSP

Part Number: DRA80XMEVM

Hello TI support team,

I was wondering what options are available for measuring performance directly on the DSPs? I'm currently working with an DRA8 EVM board and I'm able to execute code on the C7x/C66x directly. At the moment we have no way to use offloading from the CPU, thus we can't measure execution times of code on the DSPs through the CPUs wall clock. I know, that there are TSC registers on the DSPs to get the cycle count.

Is there also a way to

1. get an instruction count?
2. or a wall clock time?

Otherwise, what is the clock rate of the DSPs? In the documentation we found numbers saying the C66x DSPs run with 1 GHz and the C7x run with 1.7 GHz. Can you confirm these numbers? Are the clock rates persistent or are they affected by different operation modes, if there are any (e.g. power safe, performance mode)?

Kind regards,

Florian