Bysis 3 16 bit multiplier project

[Samson]

So I am working on a bit multiplier project

How can I input two 16-bit inputs with only having 16 switches on the board? Is there a way after inputting the first 16-bit I can toggle the switches again to input the second 16-bit?

Thanks so much.

 

[hamster]

My suggestion would be to use one of the push-buttons as a "Store switch value in X", and another as "Store switch value in Y".

You could maybe use the other buttons as "Show me X" and "Show me Y", and the center button as "Show me X*Y" - with no buttons pushed it could just show you the value of the switches.

[D@n]

@Samson,

I love @hamster's solution!  Don't forget, though, if you use buttons you'll want to use at least a 2FF synchronizer and (depending on your purpose), you may want to debounce them as well.

Dan

[jpeyron]

Hi @Samson,

Here is the basys 3's resource center. Here is the Basys 3 General I/O Demo that uses switches, buttons(with debouncer) , seven segment display,  usb host(mouse) and the VGA in VHDL. This Demo should be a good reference for @hamster and @D@n project suggestions.

cheers,

Jon