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Task_delay Function in BIOS

B H Pawan Prasad
Prodigy 200 points

Hi,

One of my customer wants to use Task_Delay function at the sub millisecond level. They want to do this without configuring the clk_tick in the cfg to a sub millisecond level.

Any inputs here will be appreciated.

Regards

Pawan

  • 0
    TI__Mastermind 32475 points

    Pawan,

    BIOS has a Task_sleep() which is based on the Clock tick.  Obviously if your Clock tick is 1 ms or greater, you cannot have a sleep that is less than a Clock tick.

    There is no API called Task_delay() that I am aware of.  What's the motivation for having a small delay?

    One way I can think of to achieve this sub millisecond delay is to have a second timer programmed as a one shot timer with a small period...for example 100microseconds.  This timer should post a semaphore which the task is going to pend on.  The task should start the timer before it does a semaphore_pend.

    Judah