Hi,
I have some problem with NRF52840. When I use software example "ram_retention" in peripheral directory on 2 différents board I have 2 differents state of VBUS pin.
I have made "Erase chip" before programming the 2 boards.
On my 2 différents board I have cut the VBUS wire near the NRF52840 module (18039 from HolyIOT).
VDD = 3.0 V
On the first board VBUS pin measured to 0 V.
On the second board VBUS pin measured to 2.7 V.
That a problem for me because, in the final configuration, I need to connect VBUS to USB +5V IN pin, and to a IC charger. And when VBUS pin connected to IC charger, I can measure a current consomption near to 50uA !
How is it possible that the VBUS pin can generate an output current ?
Regards,
Gaétan
