on the nRF52 you could use SysTick for that, since SysTick isn't really used and, because it stops every time the processor goes to sleep, hard to find a good use for.
You'd also expect on the nRF52 some of this information is available via the expanded debugging facilities. For a start, when debugging nRF52 stuff I get a CPU cycle count, pretty sure you can read that from code, you also have the option of trace and SWO output. I enabled it once and CrossWorks chewed the data and gave me some kind of readable output but I haven't spent much time on it.
on the nRF52 you could use SysTick for that, since SysTick isn't really used and, because it stops every time the processor goes to sleep, hard to find a good use for.
You'd also expect on the nRF52 some of this information is available via the expanded debugging facilities. For a start, when debugging nRF52 stuff I get a CPU cycle count, pretty sure you can read that from code, you also have the option of trace and SWO output. I enabled it once and CrossWorks chewed the data and gave me some kind of readable output but I haven't spent much time on it.
