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johnzaf's avatar
johnzaf
Icon for New Contributor rankNew Contributor
5 years ago

differential sma output issue

Hi all, I am trying to pass a clock to a differential sma output(pins c42,c41) on my board (Arria 10 GX Development kit). But the fitter shows me this error: Error(14566): The Fitter cannot pla...
Ash_R_Altera's avatar
Ash_R_Altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,


Please provide more details on the design:

1) What is the IO standard applied to these pins?

2) Is the XCVR bank correctly clocked?

3) What are the other pins located in this bank?


Note that these pins are transceiver output only pins and cannot be used as a normal GPIO (reference: device pin-out file).

If you can provide a simple design to reproduce this case, we can debug it further.


Regards.


  • johnzaf's avatar
    johnzaf
    Icon for New Contributor rankNew Contributor
    5 years ago

    Hi thanks for the reply,

    I just want to take a clock out of these differentials sma. I am trying with a simple design now and I try to connect for example the 50mhz clock (pin au33) to these sma.

    1) the pin planner allows me to choose the 'high speed differential I/0' only for these pins (c42,c41)

    2) how to check this?

    3) i dont use other pins. I just want to connect pin au33 for example to these pins (c42,c41). Is this possible? Is any other way to connect a clock to these pins ?

    Regards