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SAnan1's avatar
SAnan1
Icon for New Contributor rankNew Contributor
7 years ago

Cyclone IV GX Transceiver starter kit pin_planner disagrees with documentation

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Image 1 : clock_pins_cycloneivgx

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Pin A9,A10 : clock

Pin F12,F13 : clock

pin G13,H13 : clock

pin E6,E7 : clock (transceiver 1 clock)

pin J6,J7 : clock (transceiver 0 clock)

pin M7,N7 : clock

Open up the attached reference manual and search for those pins. They all have some other functionality other than clock. What is going on here?!!?! the only thing that made sense was for J6,J7 where the document describes it as PCIE clock received from from the mother board...

Please help.

1 Reply

  • CheepinC_altera's avatar
    CheepinC_altera
    Icon for Regular Contributor rankRegular Contributor
    7 years ago

    Hi,

    As I understand it, you are observing some pin function mismatch between the pin planner vs the reference manual of the CIV GX starter devkit. From pin planner you are observing some pins as clock but in the manual, they have other functionality. Would you mind to help cross-checking with the devkit schematic on these pins to see if it matches the manual or pin planner.

    Thank you very much.

    Chee Pin