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Altera_Forum's avatar
Altera_Forum
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15 years ago

Error:TRI or OPNDRN buffers permanently enabled

1.Warning: TRI or OPNDRN buffers permanently enabled 2.Warning (10235):variable "readMem" is read inside the Always Construct but isn't in the Always Construct's Event Control 3.Warning (10272):...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Warnings are no error. They may also report a behaviour that has been intentionally set in your design. If you however placed a tristate or open drain driver, that is expected to be in both enabled and disabled state during device operation, then your design has been obviously implemented incorrectly. Check the logic driving the output enable signal respectively the assignments driving the inout pin.

Warnings 2 and 3 are pretty self explanatory, I think.