Some boards like the M8 Game Board use too much power for the USB port to supply.

In that case, external regulated 5V should be connect to the screw terminals, and the jumper on JP3 should be moved to pins 1-2.

Otherwise, it should join pins 2-3 for USB power.

This is done to prevent 5V board power from backfeeding into the USB port.

Return to SST-6809