Puzdrowski, Andrzej <Andrzej.Puzdrowski@...>
So you must have supplied nRF52840 from VDDH pin – so it power regulator circuit works in high voltage mode.
Then internal regulator generate the GPIO output voltage:
You need to set UICR->REGOUT0 properly, 5 is proper value for select 3.3 V
For more info see nRF52840 OPS, especjali POWER chapter
From: zephyr-devel-bounces@... [mailto:zephyr-devel-bounces@...]
On Behalf Of ashish.shukla@...
Hello everyone !!!
I'm working with custom PCB of nrf52840. I need to set VDD voltage which is also GPIO high level voltage equals to 3.3V, otherwise it's 1.8V by default.
How can I access registers of nrf52840 in zephyr architecture?
Jr. Embedded Engineer
Research & Development
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