How do i use SysTick for NRF52840 using nRF Connect SDK v2.0.0

[Deep Patel]

I want to keep perform some task periodically .. probably using tick timer of every 1 ms, so that only after every 4000ms, i can perform some task.

How do i implement it ?

Any API / example i can refer to ?

[Deep Patel]

I implemented my requirement using the timer API. .. 

Using a Timer Expiry Function

Hope that works !

[cBroadbo2]

Hi Deep,

This is quite late, BUT in kernel.h you will also find uint32_t k_uptime_get() which returns you the milliseconds since boot.  This will won't be affected by changes to the SysTick configuration presumably.

Craig 

/**
 * @brief Get system uptime.
 *
 * This routine returns the elapsed time since the system booted,
 * in milliseconds.
 *
 * @note
 *    While this function returns time in milliseconds, it does
 *    not mean it has millisecond resolution. The actual resolution depends on
 *    @kconfig{CONFIG_SYS_CLOCK_TICKS_PER_SEC} config option.
 *
 * @return Current uptime in milliseconds.
 */
static inline int64_t k_uptime_get(void)
{
	return k_ticks_to_ms_floor64(k_uptime_ticks());
}