Use of rtc1 in s110

RE: Use of rtc1 in s110

Nikita — Thu, 23 Oct 2014 09:13:36 GMT

You don't need to do anything with RTC1 yourself, it'll be done inside app_timer. You can see example of how to use app_timer if ble_app_hrs project, there is several timers. You need to init app_timer module with APP_TIMER_INIT() once and then you can create your timer with app_timer_create() function and after creation you can start timer with app_timer_start() function.

RE: Use of rtc1 in s110

Matthias — Thu, 23 Oct 2014 09:02:07 GMT

Hello Nikita, thank you! I expected that i shouldnt turn off the softdevice.

Yes, i already tried to use the rtc1 together with the softdevice. Could you please give me a code snipped or tell me where in the examples i can find a snipped of how to initialize the rtc via app_timer.

RE: Use of rtc1 in s110

Nikita — Wed, 22 Oct 2014 10:17:30 GMT

Shall i only activate the softdevice when i want to send the data over ble and for measuring and i2c disable it?

No, you don't need to disable softdevice at all.

If using the SD all the time, how can i use the RTC1 as it isnt blocked by the SD. I read i could change something in app_timer.h but i dont really know what. Why is it so hard to use the rtc when sd is enabled. They are so power efficient and i really need one to run.

Read this about RTC1.

You don't have to use RTC1 directly, I'd recommend you to use app_timer instead for your timer.