power flow control

USB Logic control for SDR1096-DAT

logic-gate-dat

  • OE stay off by pull up resistor (default)
  • OE turn on by USB_ID or PA28_USB_HOST_EN pull down
    • USB_ID or PA28_USB_HOST_EN pull down further turn on mos-p
    • VBUS -> VIN via mos-p (default off by pull up resistor)