Forum Discussion
Altera_Forum
Honored Contributor
16 years agoModelSim does not show FIFO's signals
Hello, I got a NIOS-II system with a custom avalon interface. This custom block extantiate a FIFO, which was created using the Megawizard tool. When I run ModelSim everything seems to be worki...
Altera_Forum
Honored Contributor
16 years agoTipically the some/all of the output signals are only defined if all input signals are defined (!= X).
So please fix your testbench so that it provides valid inputs to the FIFO. After that the outputs of the FIFO should be valid (!= X)