Author Topic: USB3 internal enabled?  (Read 53198 times)

May 14, 2009, 05:52:00 AM
Reply #30

gmanvbva

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I think what he was suggesting is replacing an existing USB 1 port socket (USB1 or USB2) with a 2 port USB socket to free up the other port (which is currently being used).

May 23, 2009, 01:58:25 PM
Reply #31

annoynimouse

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About USB3 on PCB. It is not 1x4 contacts, it is 2x4
    5: +5V        6: ???        7: ???        8: GND
    1: +5V    2: DATA-    3: DATA+    4: GND

So, did anyone tried contacts 6 & 7.

It seems that USB1 and USB2 are connected to different hubs and each hub has one port unused yet. The question is if it is wired to someplace or is a dead-end.

Either 6 and 7 can be connected to the hub wires, then bv4jw can re-solder his wirings from 2&3 to 6&7 and get it at last! :-)
Or, if they are hopelessly abandoned, then 2 port USB socket would do nothing as well. His second port is just connected to the upper 5-6-7-8 row of contacts and would just be wired to nothing :-(

May 23, 2009, 02:13:51 PM
Reply #32

annoynimouse

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Hmmm... yet afterall, let me try to shatter your dreams.

TangoX USB initializing...
tangox-ehci-hcd tangox-ehci-hcd: TangoX USB 2.0
tangox-ehci-hcd tangox-ehci-hcd: new USB bus registered, assigned bus number 1
tangox-ehci-hcd tangox-ehci-hcd: irq 48, io mem 0xa0021500
tangox-ehci-hcd tangox-ehci-hcd: USB 0.0 started, EHCI 1.00, driver 10 Dec 2004
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
TangoX USB was initialized.

Initializing TangoX USB OHCI Controller Membase=0xa0021500, irq=47
tangox-ohci-hcd tangox-ohci-hcd: USB Host Controller
tangox-ohci-hcd tangox-ohci-hcd: new USB bus registered, assigned bus number 2
tangox-ohci-hcd tangox-ohci-hcd: irq 47, io mem 0xa0021500
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected


You see, those are hardly different devices, those are the same device. You would see absolutely the same on your computer, be it Windows or Linux or Mac OS...

http://en.wikipedia.org/wiki/EHCI#Enhanced_Host_Controller_Interface
Read the EHCI section carefully... The USB2 controller is shown as 2 controlers to system. It shows EHCI virtual chip for USB2 devices and OHCI or UHCI for USB1 devices. Depending on what device you would plug in, different virtual chips / drivers would be activated. Those seems to be not 2 hubs, but 2 faces of single hub, for USB2 and USB1 devices. That is why those memory adresses are the same: one real device - one mem address. :-(

Would like to be wrong, though.

May 23, 2009, 02:56:52 PM
Reply #33

annoynimouse

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WD TV is told to be based upon SigmaDesigns SMP8635LF

and while those are not datasheets (thse are NDA docs :-( )...
http://www.sigmadesigns.com/public/Products/SMP8630/pdf_files/MCX-8634_br.pdf
http://www.sigmadesigns.com/public/Products/SMP8630/pdf_files/Vantage8634_br.pdf
See on 2nd pages about 2 usb somethings (probably - two ports, two devices to plug)

Now the more recent, more powerfull more expensive cheap
http://www.sigmadesigns.com/public/Products/SMP8650/pdf_files/SMP8650_br.pdf
http://www.sigmadesigns.com/public/Products/SMP8650/pdf_files/Vantage8654_br.pdf
It is frankly said about 2 USB ports. And the elder cheaper 863x would hardly have more than the top.

September 10, 2012, 03:12:25 AM
Reply #34

arfgh

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so then, how many usb ports can be added to this 'out of use' connector ?