os_itv_set(20); while(1) { os_itv_wait(); msdelay(100); }
this is part of my code in one of RTX TASKS, every
time run to "os_itv_wait()", current task sometimes
can not change to another task; when os_dly_time,
i meet the the same situation; why os_itv_wait()
function can't change the current task to another ?
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