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Altera_Forum
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14 years ago

An important warning confused me--tri-state nodes do not directly drive top-level

Hi all, Recently I compile a project in Quartus 9.0 and make some changes. The results comes out with some strange warnings: Tri-state nodes do not directly drive top-level. I look up in...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Theres your problem. You're trying to tri-state your data out from the test component. It is just an output, so doesnt need tri-stating. The tri-stating is done at the top level.