Benchmarking - RM48

Ron Teller

Hello,

I purchased a RM48 MCU development kit and I want to check its performance in order to make sure that it is good enough for my needs.

I want to run a "for loop" with some math calculations inside.

My question is: how do check how much time did the "for loop" take? (start a timer at the beginning and stop it at the end?).

Can anyone please send me an example code to do such a thing?

Thank you.

over 13 years ago

0 KGreb over 13 years ago

TI__Mastermind 23000 points

Hi Ron,

You have two options available to you. The first is to use the Performance Monitoring Unit (PMU) built into the Cortex R4F as a coprocessor by ARM. The second option is to use the RTI module on the device (OS timer). In general, the PMU has lower latency of access so measurements can be more precise, but many find the programmer's model of the RTI to be easier to use.

Best Regards,

Karl

0 Paul Blecher over 12 years ago

TI__Intellectual 1115 points

Hi Ron,

Did Karl's response answer your question?

Best regards,

Paul

0 Ron Teller over 12 years ago in reply to Paul Blecher

Prodigy 20 points

Yes,

Using the PMU was not as simple as the RTI module,

but I found it more accurate and better to use while debugging.

Thanks you.

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Benchmarking - RM48