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CWarr1's avatar
CWarr1
Icon for New Contributor rankNew Contributor
7 years ago

can't place multiple pins assigned to pin location

I understand from other posts that the root cause of this error is that the pin in question has already been assigned by QSYS.

My question is: why are pins allocated in QSYS not marked as 'used' in the Pin Planner or the Assignment Editor ?

Thanks

1 Reply

  • sstrell's avatar
    sstrell
    Icon for Super Contributor rankSuper Contributor
    7 years ago

    Without seeing the actual message or your design, it's impossible to figure out what's going on here. Qsys (now called Platform Designer) does not allocate or assign I/O pins. Perhaps you mean that the Fitter selects I/O locations during compilation. However, the locations selected by the Fitter are not user assignments so they are not "locked" into place.