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amildm's avatar
amildm
Icon for Contributor rankContributor
3 years ago
Solved

[SignalTap] How to add signals defined as "wire" in RTL?

Hi All, How can I add signals, which are defined as "wire" in RTL, to SignalTap ? Thank you!
  • sstrell's avatar
    sstrell
    3 years ago

    Well, there's your problem. It's getting optimized away. Tap the "upstream" signals that drive this or add virtual pin assignments to the signal in the Assignment Editor.

sstrell's avatar
sstrell
Icon for Super Contributor rankSuper Contributor
3 years ago

What does pix_data_in_422 connect to? Can you tap anything else ahead of this signal that drives it or whatever it feeds into?

  • amildm's avatar
    amildm
    Icon for Contributor rankContributor
    3 years ago

    Actually the pix_data_in_422 signal doesn't drive any logic...

    But is there a way it will not be optimized out and be able to be added to SignalTap ? None of the synthesis directives or attributes were able to prevent it from being optimized out...