Unusual tick shown on power profiler

RE: Unusual tick shown on power profiler

smackenzie — Fri, 05 Mar 2021 01:34:00 GMT

After removing the usage of ble_radio_notification_init, the strange tick has disappeared and the battery levels are consistent.

RE: Unusual tick shown on power profiler

Jørgen Holmefjord — Thu, 25 Feb 2021 17:18:53 GMT

Like I said, there is no way to know what is causing this without looking at your project/code. Could you upload the project? If you do not want to share it in public, I can convert the case to a private one.

Did you mean SDK 15.3.0? As far as I know, there is no SDK v15.4.

RE: Unusual tick shown on power profiler

smackenzie — Tue, 23 Feb 2021 20:01:00 GMT

Its a nrf52832 on a custom board with SDK 15.4 using the S132 softdevice. It is a central BLE device.

Edit: Also we have monitored all the external sensors on the board and cant see this pulse. So it looks as if it is coming from something internal.

RE: Unusual tick shown on power profiler

Jørgen Holmefjord — Tue, 23 Feb 2021 12:13:46 GMT

Hi,

It is hard to say what could cause this without having a look at your application/project.

Are you using a nRF5x DK, or a custom board?
Which chip version are you using?
Which SDK version are you using?
Are you using softdevice/BLE in your application?

Regarding the Radio Notification event from flash activity, this is mentioned under limitations in the softdevice release notes:

Limitations

SoftDevice
- If Radio Notifications are enabled, flash write and flash erase operations initiated through the SoftDevice API will be notified to the application as Radio Events (DRGN-5197/FORT-809).

Best regards,
Jørgen