Reading Current ticks in RTC during operation

[Swapnil]

Hello,

I want to read the current ticks in RTC0, and want to measure the time elapsed after some events by using ticks to milliseconds. Basically i want to display the time in milliseconds as soon as i start the program so i am using RTC for that. So is it possible to get the current ticks values from RTC during running program and convert them to milliseconds. Or if there is having any other way of displaying the time(in ms) please tell

Thank you.

[Jørgen Holmefjord]

Hi,

You can read the value of the RTC0 counter from the register NRF_RTC0->COUNTER. Notice that the timer will overflow, and you need to account for this in your timekeeping application. Check out this post about overflow counting using timer library. If you are using a softdevice, direct access to RTC0 is blocked. You can use RTC1 with the Timer library if you use a softdevice.

Conversion from ticks to ms can be done like this.

Best regards,

Jørgen