Honored ContributorHello,
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 working but all the FIFO's signal are undefined. ModelSim does not generate any errors or warning. The testbench does not have reference of the FIFO. I'm running Quartus 8.1. Thanks Horacio
Honored ContributorHello horacioEsta,
>># ** Warning: (vsim-3473) Component instance "fifo1 : fifo512x32" is not bound.>> This means that the FIFO instance from the Quartus library is not available for the simulation environment. Thats the reason why you see the signal are undefined. Please create a simulation library in Modelsim and copy the models from Quartus and the start the simulation. You will see the required signals at the output. To see how to make library please refer the Modelsim userguide, its pretty simple. All the best. rsenthil78
