Time stamp counter on TM4C123x and 129x

Elder Costa

Is there any equivalent to x86 TSC that I could use to count the number of clocks? I am using IAR EWB and it does have a CYCLECOUNTER register. But I need to time some functions and I would appreciate some advice on how to access this counter (assuming it is accessible from the application).

over 11 years ago

0 Amit Ashara over 11 years ago

TI__Guru**** 244400 points

Hello Elder

Do you mean TIVA Application being able to access the CYCLECOUNTER register of IAR?

Regards

Amit

0 Elder Costa over 11 years ago in reply to Amit Ashara

Intellectual 430 points

Hello Amit,

Not the register of IAR but the register IAR accesses to show on CYCLECOUNTER. I presume it reads some register in the Cortex-M core with SYSCLK resolution.

Elder.

0 Petrei over 11 years ago in reply to Elder Costa

Guru 26105 points

Hi,

See this thread:

http://e2e.ti.com/support/microcontrollers/tiva_arm/f/908/p/327659/1141047.aspx#1141047

Petrei

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Time stamp counter on TM4C123x and 129x