Zephyr Mesh / Timer accuracy

[masak]

Hi,

I am evaluating Zephyr mesh and implemented two timers; one triggers at every 2 mS, the other triggers at every 500 uS.

I put a code in both timers' events to toggle a gpio so that I can measure accuracy of timing. It shows nearly 100 uS jitter.

For 500uS timer, it is 20% error. I need more accuracy, at least +-5 % of the target frequency of the timer function. Is it possible? 

Thanks,

masakura

[masak]

I did not include the codes.

k_timer_init(&my_timer_ms, timer_ms_event, NULL);
k_timer_start(&my_timer_ms, K_MSEC(TIMER_INTERVAL_MSEC), K_MSEC(TIMER_INTERVAL_MSEC));

k_timer_init(&my_timer_us, timer_us_event, NULL);
k_timer_start(&my_timer_us, K_USEC(TIMER_INTERVAL_USEC), K_USEC(TIMER_INTERVAL_USEC));

Thanks,

masakura