Enable DC to DC converter in NCS nRF Connect

[erik1024]

I would like to enable and configure the high power mode on the DC to DC converter in the nRF52840.

I am looking for the device tree source entries and the necessary entries in Kconfig or project config for Zephyr. Function calls would be desirable, too.

High power mode on the nRF52840 running with Zephyr is the goal, but anything that sets up any part or stage of the DC to DC converter will help.

Thank you

[runsiv]

Hi Erik

Which version of NCS are you using? In your prj.conf set  CONFIG_BOARD_ENABLE_DCDC=Y to enable the DCDC converter.  HV you set CONFIG_BOARD_ENABLE_DCDC_HV=y

Regards

Runar

[erik1024]

I'm using v2.6.1. I'll give those a try. In addition to enabling the DC-DC converter, there is also a voltage register that is in another SOC block. I think that's an issue, too.

Thanks,

Erik

[runsiv]

Hi Erik. 

How did it go?

Regards

Runar

[erik1024]

Hello Runar,

The CONFIG* settings look OK. I continue to be unsure about how to set the DCCH voltage. Until something better comes along, I am copying a nrfx-based example that sets DCCH with a direct register write (enums are provided in SDK includes). It seems like there should be an approach that sets the voltage in a Kconfig file, but I haven't found one. The example I cited sets the voltage for the dongle (I don't recall the example's exact title).

Thanks,
Erik