I made some test because task period seem to me so long..
Then I with test MQX 4.1 and only one task:
/*Port initialization */ [...] for (;;) /* Toggle led */ /* ****** Here instruction which toggle Led ****/ _time_delay(X); }
Then I measured the SIgnal on the Led and measure the period for different value of "X" passed in _time_delay();.
X= 1 measured time = 10ms
X= 5 measured time = 10ms
X= 10 measured time = 15ms
X = 12 measured time = 20ms
X = 100 measured time = 105ms.
For information, BSP_ALARM_FREQUENCY = 200 (5ms)
Then, the time is always delayed by 5ms. (When asked time is a multiple of BSP_ALARM_FREQUENCY)
What do you think of this? How can I make _time_delay exactly the asked time?