kernel: document that busy-wait clock may differ from timeout clock
Some tests assumed that a delay with k_busy_wait() could be precisely
timed by a tick or cycle count, and vice versa. This is not true for
all clock configurations on all Zephyr targets, so highlight the
potential variation.
As an example: on some platforms busy-wait is performed by a loop with
known duration in cycles of a known CPU frequency. The CPU clock may
be unrelated to the clock that drives the system timer.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
1 file changed
