Current draw on nrf9160

RE: Current draw on nrf9160

Øyvind — Mon, 04 Nov 2024 10:07:12 GMT

Are you able to collect more logs from your device e.g. modem trace and save/export Power Profiler logs? What settings are you using in Power Profiler? How does the PPK2 log look from start to cellular connection?

How long do these spikes go? From the provided screenshot I see that the window time frame is set to ~43,5ms. The nPM1300 does have some sort of pulsing to the battery in order to check battery state. nPM1300 - Automatic measurements

Kind regards,
Øyvind

RE: Current draw on nrf9160

dave — Fri, 01 Nov 2024 14:58:25 GMT

I have the PPK2 in series between the battery and the board

The main components on this board are the nrf9160, the nmp1300 and an external flash chip (that isn't being written or read to currently, it's the same flash IC as on the nrf9160 dk)

I am getting logs over serial, since the program doesn't do much right now I just get the starting message for nrf connect and zephyr versions

*** Booting nRF Connect SDK v2.7.99-547aaab19c52 ***
*** Using Zephyr OS v3.6.99-8005d4e87b9b ***

Right now the pmic is just doing the configuration that I posted in the pmic_init function. Once init is complete it is not sending data on the bus

RE: Current draw on nrf9160

Øyvind — Fri, 01 Nov 2024 12:56:38 GMT

Hello,

Difficult to tell what is going on. Where are you measuring? Are there other components on this custom board?

[quote user=""]I have it set up so that it is configuring the pmic and then turns off the cell and goes to sleep.[/quote]

Could you please elaborate more on these steps?

With CONFIG_SERIAL=y, do you have logs from your device as well?

Thanks.

Kind regards,
Øyvind