[GreatFET] hw design: gpio-controlled power

[David Hubbard]

Hi GreatFET mailing list,

I see that the GreatFET One schematic includes a way to disconnect the USB
VBUS power from the AP7333 regulator and VCC.

I admit, I am not familiar with how the LPC4330 needs to be powered when
using USB bus power.

I was wondering if a hardware change could be made which allows the LPC4330
to switch off power to the header pins, neighbors, etc. (I began thinking
about this as I worked on USB suspend on the HackRF One.)

Thoughts?

- David
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