Which is the right way to start a one-shot timer?

[jefftenney (Jeff)]

Another one. Although the diagram no longer looks right (in my browser at least).

xTimerStartFromISR() and xTimerResetFromISR() with tickless idle

When used with tickless idle, xTimerStartFromISR() and xTimerResetFromISR() might not behave as expected. For reference, these functions capture the current tick count (in the ISR) for use as the start time of the timer. If the ISR happens to interrupt a tickless idle period, the captured tick count isn’t current. It hasn’t yet been corrected by the tickless logic. The correction occurs immediately after the ISR. As a result, the timer is unexpectedly started from a time in the past, possib…