how can i make system tick funtion?

[lee joongkeun]

I know that nrf51822 is not supported system tick handler ? I need system tick function. How can i make system tick function for nrf51822?

[Ole Morten]

I'm sorry, but I still have serious problems understanding what you want. If you want a TICK with a frequency of 32.768 kHz, you should just use the RTC. You will not get a precise 32.768 kHz tick by using the 16 MHz timers. If you want a tick for every 1 ms, you have to use one of the 16 MHz timers, and do as I said in this initial answer.