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Using a timer when running a C program as 'bare metal'

Former Member

Hi,

I'm trying to run a benchmark-like algoritm on the zedboard using the SDK (like the helloWorld program in the labs here on ZedBoard.org).

My poblem is that when i'm trying to get the time,
startTime = ftime(&tmb);
I get an error that ftime cannot be found.

Is there an commonly used way to get the time?

Thanks for answers :)

Anders Viken

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    I tried implementing the scutimer library and things work like a charm. I did notice that the timerInstance was in global scope, whereas I was putting my axi timer in main. Maybe that was my problem. I noticed that james t kennedy's timers were also a local scope in main. Maybe that's what caused issues. Anyhow, I also found an example of scutime with an interrupt handler, so that helps as well... Problem solved!

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    I tried implementing the scutimer library and things work like a charm. I did notice that the timerInstance was in global scope, whereas I was putting my axi timer in main. Maybe that was my problem. I noticed that james t kennedy's timers were also a local scope in main. Maybe that's what caused issues. Anyhow, I also found an example of scutime with an interrupt handler, so that helps as well... Problem solved!

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  • 0 in reply to Former Member

    scutimer may be prefereable. i used tmrctr because i used it 4 years ago in a microblaze app.
    btw, although i did not post my listing, my instance WAS local to main or to the therad function under FreeRTOS, but remember i did not have an issur, the xtmrctr WORKED in my app.
    Interrupts are useful but in this case we were framing PL and PS based functions to get acceleration times.
    The IP could interrupt and predicate a reading of the timer. this would be effective.