Forum Discussion
Altera_Forum
Honored Contributor
18 years agoNo 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
Honored Contributor
18 years agoPermanently 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?