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Visitor ejmuir
Visitor
149 Views
Registered: ‎12-18-2018

ZCU104 USB OTG Failure

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Hi,

I have a very simple design (PS/embedded Linux) for the ZCU104 I am having difficulty implementing and attempting to debug. Essentially, I am simply employing the PS portion of the device (no PL) and I have GEM3 and USB0 (3.0) enabled on the PS. For the Petalinux design, I am implementing Python in the rootfs but nothing else (for now). My goal is to interface the ZCU104 with a USB 2.0 OTG device (to be specific, a ADALM-Pluto SDR) using the on-board USB Type-A port.

I have followed the instructions listed in this document (using both the 2018.2 and 2018.3 toolchains):

https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18841729/Zynq+Ultrascale+MPSOC+Linux+USB+device+driver#ZynqUltrascaleMPSOCLinuxUSBdevicedriver-OTGMode

although I always end up with the same result:

image.png

 

According to the document linked above, the 2018.3 toolchain has "Fixed broken OTG HNP feature" but it would seem that is not the case. Any guidance on this issue would be greatly appreciated.

Thanks,

Ezra

 

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Xilinx Employee
Xilinx Employee
119 Views
Registered: ‎01-21-2008

Re: ZCU104 USB OTG Failure

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Hi @ejmuir,

The ZCU104 USB3320 PHY supports host only mode. Please refer ZCU104 Board User Guide UG1267 and ZCU104 Schematic page 40 for USB external Power switch U121 & U116 USB3320 PHY. 

 

2 Replies
Xilinx Employee
Xilinx Employee
120 Views
Registered: ‎01-21-2008

Re: ZCU104 USB OTG Failure

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Hi @ejmuir,

The ZCU104 USB3320 PHY supports host only mode. Please refer ZCU104 Board User Guide UG1267 and ZCU104 Schematic page 40 for USB external Power switch U121 & U116 USB3320 PHY. 

 

Visitor ejmuir
Visitor
106 Views
Registered: ‎12-18-2018

Re: ZCU104 USB OTG Failure

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Thank you for the information.

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