How to set nRF9160's VDD_GPIO

[Liza]

Hi,

My project need to set nRF9160 IC's VDD_GPIO to 1.8V. Could you provide some guidance to me.

Thanks,

Liza

[ketiljo]

You need an external supply voltage for this. A regulator or an existing 1.8 V suppy will do.

[Liza]

Hi Ketiljo,

Got it. So is it all hardware control instead of firmware control?

Thanks,

Liza

[ketiljo]

Yes, the VDD_GPIO is a external supply to set the votlage levels on the GPIO