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Ultrazed Hardware Design Ultrazed USB Device Mode

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Ultrazed USB Device Mode

adiaz04 over 8 years ago

How do I put the Ultrazed SOM/IO carrier combo in USB Device Mode?

My goal is to be able to connect the board to a PC and access the eMMC.

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0 jafoste4 over 8 years ago

Hello,
Please refer to section 2.2.2 of the UltraZed IO Carrier Card Hardware User Guide.
http://zedboard.org/support/documentation/17596
--Josh
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0 jafoste4 over 8 years ago

Hello,
Please refer to section 2.2.2 of the UltraZed IO Carrier Card Hardware User Guide.
http://zedboard.org/support/documentation/17596
--Josh
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0 adiaz04 over 8 years ago in reply to jafoste4

Thanks for the reply Josh, I've been playing with those jumpers for a while now but I can't get my machine to detect the board as a device.

To clarify what I think is the right config for jumpers:
J12: pin 1-2
J15: pin 1-2
J14: pin 1-2
JP6: Off (no jumper)

Does any software need to be running? or can i just be idle in U-Boot?

My Ubuntu 16.04 machine produces the following output when the board is connected:

"xhci_hcd 0000:00:14.0: Cannot set link state.
usb usb2-port1: cannot disable (err = -32)
usb usb2-port1: config error
usb usb2-port1: Cannot enable. Maybe the USB cable is bad?"

Thanks again.
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0 adiaz04 over 8 years ago in reply to adiaz04

Anyone have any ideas or experience with this ?
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