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Rleduc's avatar
Rleduc
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2 years ago

Cannot assign clock signal to XCVR bank pin - Arria 10

Hello dear community, I am currently using a Terasic HAN Pilot Plateform (Arria 10) for receiving high speed data from ADC at a rate of 5 Gbps, as well as transmitting the sampling clock of 250 MH...
FvM's avatar
FvM
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2 years ago

If I understand right, you want to send 250 MHz clock through SFP port. That's not directly possible by connecting a PLL, however you generate a bit sequence by oversampling with 500 MHz or 1 GHz clock.

Rleduc's avatar
Rleduc
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2 years ago
Hi,

Thank you for your response.

Yes I guess this is the way to go, however transceivers in Arria 10 is something pretty new to me and I'm not sure exactly how to take it. Is there a kind of serializer IP in Quartus where I can input my "clock data" ? Is oversampling a common method for this kind of matter ?

Regards
  • FvM's avatar
    FvM
    Icon for Super Contributor rankSuper Contributor
    2 years ago
    Hello,
    yes, there's a serializer IP. Oversampling is also mentioned in the device handbook for achieving bit rates between 125 and 1000 Mbps.