SAADC reading during BLE transmit

[BattleDroid]

SDK: 15.2
IDE: Keil
SoftDevice: 6.1.1
Board: Custom

Hello,

I would like to synchronize an SAADC reading during a BLE transmit event.  The power source to my board is a CR2032 battery.  As you may know, there are voltage dips in this supply during BLE transmit events that are related to the internal resistance of the battery.  I would like to know if it is possible, when using the SoftDevice to take SAADC readings during these BLE transmit events to calculate the amount of voltage change during this event.

Thanks in advance,

E

[Jørgen Holmefjord]

Hi,

You can trigger SAADC sampling from a TIMER through PPI, so it is possible to do sampling during BLE transmits. Are you asking about how to synch this, or just if it is possible?

Best regards,
Jørgen

[BattleDroid]

Hello Jorgen,

Thank you for confirming this is possible.  My follow up question is how to sync these 2 events.