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Altera_Forum
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12 years ago

annul signals in megafuntions?

Hello I Am using instantation megafuntions in vhdl. And generate it, many pins. Is possible to annul signals that are not in use of these megafunctions? Regards and Thanks
Altera_Forum's avatar
Altera_Forum
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12 years ago

Hello Tricky, First pardon for my english, it is not my native language.

I am trying to do a board with a cyclone the III or IV, for an university work. And it has to include the basic controllers, Bus PCI, controllers of memory SDRAM and Flash.

I start by compiling only the megafunction of the bus PCI (pci_mt32) and appear 217 pines in the compilation (quartus 12.1) and 185 pines (quartus 9.1). They are a lots. I readed that for a basic bus with 47 or 49 pines is enough. I suppose that they are exceed pines and I do not need to use all the signals. Or am I doing something badly?

Regards

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