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Ultrazed Hardware Design PS-GTR USB3.0 Clock Freq
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Related

PS-GTR USB3.0 Clock Freq

gge7
gge7 over 8 years ago

Hello

 

Thank you all for taking the time to read this.  I am a little confused but I think this will be easy to clear up.

On the IDT Clock Generator the original UltraZed IO Carrier had a 5P49V5935B521LTGI part listed with a frequency of 52MHz listed.  Now I saw in an eariler post that the part is really the 5P49V5935B536LTGI which from the custom Datasheet the frequency is 26MHz not the 52MHz that the original part listed had.  So is it 26MHz or 52MHz?

 

Please let me know and thank you for your help.

Gary

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  • zedhed
    0 zedhed over 8 years ago

    Hi tchoyt,

    Did you try performing a soft reboot on your platform after applying the 52MHz clock configuration sequence?  I tried that on mine using the clock configuration sequence in the Appendix and the USB3 comes back reporting a link at 5.0Gbps when I run the "lsusb -t" command.

    I also found that you need to have the correct jumper configuration on the I/O Carrier.  Jumpers must be set for host configuration mode by placing J1 and J2 to 2-3 position and by removing JP1 jumper.

    I also found that cabling can have an impact upon transceiver performance.  I usually have good luck with the following adapter for my USB devices:

    https://www.firefold.com/usb-3-0-type-a-female-to-micro-usb-type-b-male-adapter

    Best Regards,

    -Kevin

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  • zedhed
    0 zedhed over 8 years ago

    Hi tchoyt,

    Did you try performing a soft reboot on your platform after applying the 52MHz clock configuration sequence?  I tried that on mine using the clock configuration sequence in the Appendix and the USB3 comes back reporting a link at 5.0Gbps when I run the "lsusb -t" command.

    I also found that you need to have the correct jumper configuration on the I/O Carrier.  Jumpers must be set for host configuration mode by placing J1 and J2 to 2-3 position and by removing JP1 jumper.

    I also found that cabling can have an impact upon transceiver performance.  I usually have good luck with the following adapter for my USB devices:

    https://www.firefold.com/usb-3-0-type-a-female-to-micro-usb-type-b-male-adapter

    Best Regards,

    -Kevin

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