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How to make a delay with TM4C1294XL?

Nicolas Göddel
Intellectual 795 points

Hi,


how can I make a delay over some microseconds or milliseconds? Do I have to create a function similar to this?

SysCtlDelay(F_CPU / 3000000 * nanoSeconds);

Or is there a better way?

Thank you!

  • 0
    TI__Guru**** 244400 points

    Hello user1597705,

    Based on the system clock and the manner the code is placed in the Flash, it may be offset for delay. Better way is to either user a ROM_SysCtlDelay as it will have the same code fetch time and predictable execution unless interrupt is asserted.

    Better way would be to use a WDT to fire a NMI which will always be serviced in a fixed amount of time and that can be factored into the wait time

    Regards

    Amit