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LP-MSP430FR2476: Microsecond delay

Priya Nadathur
Intellectual 545 points
Part Number: LP-MSP430FR2476

I have been using __delay_cycles which works well in the order of milliseconds. I have a 16 MHz MCLK. What is the precise way to generate microsecond delay?

Thanks

  • +1
    Guru 18885 points

    __delay_cycles will create cycle accurate delays so in your case an argument of 16 will result in a 1 us delay. There is of course no control over the instructions preceding or following that.

  • 0
    Guru 35660 points

    Actually you have that backwards, timers are much better for millisecond delays, while __delay_cycles() is good for microseconds. Note that __delay_cycles() is effectively a nop, and simply wastes time.

    If you are getting milliseconds of delay with __delay_cycles() with a reasonable argument, you might not have a 16 MHz clock.

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