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OSA : OS_Ttimer_Check

bool OS_Ttimer_Check ()

Service uses system timerAllowed only in task and functions called by task

Check if current task's timer has overflowed.

To use task timers you need to define OS_ENABLE_TTIMERS in OSAcfg.h. Size of current task's timers is set by OS_TTIMER_SIZE constant

Call allowed:

Allowed only in task and functions called by task (any depth)

Parameters:

no

Returns:

false current task's timer is counting
true current task's timer overflowed or was stopped/paused

Example:

void Task (void)
{
    for (;;) {
        /*...*/
        if (OS_Ttimer_Check()) {    // If timer overflowed (or not counting)
            OS_Ttimer_Run(100);     // then re-run current task's timer
        }
        /*...*/
    }
}

See also

 
en/osa/ref/allservices/os_ttimer_check.txt · Last modified: 07.10.2010 13:58 (external edit)
 
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