nRF9160 SWD Power Supply

[Joao Dullius]

On a custom board, VDD and VDD_GPIO are independent.

Is power supplying VDD1 and VDD2 enough to program nRF9160 through SWD, or do I need to also enable VDD_GPIO to program?

Regards,

[Simonr]

Hi

VDD_GPIO also needs to be powered in order to program an nRF9160 through SWD, as the SWD pins are connected to the VDD_GPIO net. For more information on nRF9160 Production Programming, we have an application note on the matter here.

Best regards,

Simon