Connection Interval creates a disturbance of voltage and energy consumption.

[Rasmus]

Hi, I have tried to find a solution for some time now in the Nordic Semiconductor forms. 

We have been noticing a peak or a disturbance in voltage in every connection interval.  Which is following the MAX_CONN_INTERVAL. 

The problem is that when the voltage is peaking this effect the sampling saadc result. The input comes from a peak detector circuit and will pick up on this disturbance.

The plan is to reset the peak detector circuit after every connection interval and after the disturbance. To do this we need to know when this event is occurring. I have tried different BLE_GAP_EVT events but haven't found any who occurs after every connection interval.

I am wondering if there is any event or interrupt which would work with this solution or if there is any other way to solve this matter?

Thank you!

[Edvin]

Hello,

There are no events that occur after every connection interval.

If you want to get events from the radio events you should look into radio notification.

 

I don't know what SDK you use, so this blog post might be a bit old, but it should give you an idea on how to get started.

Check out this tutorial on radio notifications.

 

The keyword for you should be: NRF_RADIO_NOTIFICATION_TYPE_INT_ON_INACTIVE.

 

You can also find more information on the radio notifications on infocenter.

 

Best regards,

Edvin