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Altera_Forum's avatar
Altera_Forum
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17 years ago

No output enable on Bidirectional pins

Hello, I have noticed a warning in the fitter that the bidirectional pins I am connecting to the DQ lines for the SSRAM aboard the Cyclone III starter kit have permanently disabled output enab...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Permanently disabled means the OE = GND (if active high) or VCC (if active low). I can never remember which. In any case, the I/O driver is always disabled, making it a bidir pin that's basically just an input. Did you give it a non-Z driver in your design?