Using 7 segment on De1 Board

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for assignment a variable to an hardware component, for example an X input with key / sw

is enough do for example:

signal X: KEY[0]

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Not quite. There's two ways you could do something like this;

signal x : std_logic;
-- "Read" the state of key(0) into x
x <= key(0);

or the shorthand version

alias x is key(0);

Note: VHDL is case insensitive, so writing capitals makes no difference. A typical "convention" is to write generics in capitals, but even that is not universal.

Cheers,

Dave

Hi Dave,

Thanks a lot for all your help, now i start to use seriously the board and i understood most of their function but there is another request, for that exam i ll prepare

a project. I can decide what prepare and with my colleague we decide to create a simply game like ping pong / arkanoid. I find on youtube video about game like that

but in my book i didn't find any reference about the library that i must use and also a manual of that library. My request is referred to the graphic part of my project.

Thanks a lot for your cooperation

Cheers

Michele

Hi Michele,

I have not needed to implement graphics. This site has some examples

http://users.ece.gatech.edu/~hamblen/altera/altera.htm

I have not looked at or used this code.

Cheers,

Dave