JackOfAll wrote: > Interesting... The pre-configured Pro carrier board, used by the Dual > (not DualLite) option (and Quad B2B option) ..... Forget all the sexy > stuff, mSATA, PCIE, IR, etc. etc..... one thing I picked up on from the > 'circuit diagram' > (http://download.solid-run.com/pub/solidrun/HummingBoard/rev-3.0/HummingBoard-rev-3_0-schematics.pdf), > the Pro carrier board uses a '4 port USB2 HUB chip' > (http://www.cypress.com/?mpn=CY7C65632-28LTXC), host from the SoM is > wired to that, then 1 port from that to one of the external USB ports, > (the other external port is wired to SoM OTG), and another 2 ports from > the hub chip wired to 8 pin header, so you could connect another pair of > USB 2 ports to that with a PC style header/bracket. Anyway, the > interesting part, for the guys using ASYNC USB1 DAC's and having to use > an external HUB, with the onboard HUB chip you shouldn't need to do > that. But bear in mind you'll need to spring for the pre-configured Dual > (not Dualite) or B2B (with Pro carrier board) to get the hub chip.
Interesting - didn't look at that part of the circuit diagram in detail :) (I was hoping that the available header could support i2s, but it looks like it doesn't have the right pins for that) Anyway the Hummingboard-i1 works fine with my MDAC which is an Async UAC class 1 device - only proviso is that it needs an external hub due to the transaction translator problem. So for people frustrated with the USB ports on a Pi, this is a real alternative which just works. ------------------------------------------------------------------------ Triode's Profile: http://forums.slimdevices.com/member.php?userid=17 View this thread: http://forums.slimdevices.com/showthread.php?t=101624 _______________________________________________ unix mailing list unix@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/unix
