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 again, just so that I know, is this a DK or a custom board? 

If you use custom board with nRF52840 default value for CONFIG_BOARD_ENABLE_DCDC_HV is 'y' which means that you would use DCDC convertor in high voltage mode. This should be accordance with your hardware design where you would use 10 uH inductor between VDD and DCCH. 

If you use a DKthe system enters High Voltage mode when the supply voltage is only connected to the VDDH pin and the VDD pin is not connected to any voltage supply.

Regards

Runar