Formulas for calculating delays, overflow, frequency ect.

[Tonni]

Hi 

Newbie in the nRF family of products so i might have missed the answers to my questions somewhere in the documentation and forum. if so i apologize. 

I'm trying to get an understanding of the timers and how to configure them to get what i want. From Arduino one could calculate delays, frequency, duty cycles etc. by having the correct values in various registers. 

for example if i wanted to drive an output pin at a certain frequency, i could use the formula cpu_freq/(2 * prescaler * OCRn) = out_freq this way i know how to configure each element to get what i want. 

To configure a timer in normal mode with a specific delay i could use (prescaler * ((OCRn + 1) - TCNTn) / cpu_freq

Question is: (Where) can i find equivalent formulas for the nRF's ?

[Jared]

Hi,

All of the peripherals is heavily documented in the product specification here. In addition, our SDK implements an API for using the peripherals if you prefer that instead of writing directly to the registers. For instance, API for using the PWM can be found here. The SDK also contains examples on how to use the peripherals , which is often a good starting point for projects.

Best regards

Jared.