hw/usb/tinyusb/synopsys/syscfg.yml

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syscfg.defs:
    USB_DP_HAS_EXTERNAL_PULL_UP:
        description: >
            Set this to 1 if hardware has external pull up resistor.
            Synopsys does have internal pull up that allows to re-enumarate
            without physical disconnection, but it will not work when
            external pull up is present (like on on black_vet6 board).
            Setting this changes pin to GPIO 0 at startup for a fraction
            then device is discovered by host.
        value: 0
    USB_VBUS_DETECTION_ENABLE:
        description:
            Set to 1 when PA9 is connected to detect VBus.
        value: 0
    USB_ID_PIN_ENABLE:
        description:
            When set to 1, USB ID pin connected to PA10 is used to select
            host or device mode.
        value: 0