nrf51822 ADC samplerate

[Andrey]

Hello!

How to use the ADC with a certain sample rate? Which sample rate is max? Where I can see any examples?

Thanks!

[Håkon Alseth]

Hello,

The max sample rate is given by the conversion time for your ADC configuration. You can find these conversion times in the product specification, chapter 8.11.

Example: 10 bit conversion takes 68 us. This gives a max sampling rate of 1/68us = 14.7 kHz.

I am attaching a small ADC-example that a colleague of mine made.

Simple ADC example.zip

[Andrey]

Thanks for the quick response.

Shall I use the timer to obtain any fixed sample rate?

[Håkon Alseth]

Yes, that is recommended.