3 ms·
https://lb.raspberrypi.org/documentation/hardware/raspberrypi/usb/README.md https://lb.raspberrypi.org/documentation/hardware/raspberryp... This says, there's
by megous 7y ago
https://lb.raspberrypi.org/documentation/hardware/raspberrypi/usb/README.md https://lb.raspberrypi.org/documentation/hardware/raspberryp...
This says, there's OTG controller intended to be used in "peripheral device only" mode.
I haven't found datasheet for BCM2711, so it's hard to tell.
- londons_explore 7y ago> peripheral device only mode. I wonder why? The silicon required is far far simpler for host mode (since you only need a single memory buffer, and you fully dictate the timing, so can pass all the complex stuff up to software).
- megous 7y agoMaybe they don't have the VBUS circuitry setup for connecting self-powered devices in host mode.
- monocasa 7y agoThere's an XHCI controller in the device tree, but my guess is that there's some silicon bug in it, hence the third party chip off of PCIe instead.
- megous 7y agoAlso it's probably not routed from the BGA, so it would not be possible to use anyway.