TMS570LS31xx HDK Clock cycle profiling and time calculation in ms/u secs

Prashanth K Basavarajappa

Other Parts Discussed in Thread: TMS570LS3137, HALCOGEN

Hi ,

Im using TMS570LS3137 HDK board for some application. I tried using Profiler in CCS 5.4.000091.. and found that it cannot profile this HDK Eval kit, it only gets active but wont give results.. Next thing i have to use cycle clock..PMU i want to try at last...

If i use only clock cycle to profile a function between 2 break points.. then how to calculate execution time of that function involved in "milli or micro seconds".. Currently im using default clocks settings of HALCOGEN . (OSCIN 160Mhz)

Next is if i have to use PMU, how to get time in seconds using "get cycle count" API

over 11 years ago

0 Prashanth K Basavarajappa over 11 years ago

Prodigy 40 points

Hi,

I have mentioned wrong frequency in above description. Here is the snapshot of the HALCOGEN settings.

0 Sunil Oak over 11 years ago in reply to Prashanth K Basavarajappa

TI__Mastermind 49120 points

Hello,

The PMU is a part of the Cortex-R4F CPU and uses the CPU's clock (GCLK domain) for its operation. This is the fastest clock available and provides the highest granularity. The PMU reports cycle counts and the conversion from the number of cycles to actual time units needs to be done by the application software.

Regards, Sunil

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TMS570LS31xx HDK Clock cycle profiling and time calculation in ms/u secs