Newbie - selecting digit and adding one to current digit Spartan 3

[fabynx]

Hello everyone


I would like to know how to make one push button cycle through selecting each of the four digits separately in a 7 segment display?
and adding 1 to the selected digit using another push button?







I've added a rar file of the example code before I edited any of it to create my digital clock. I think the "signal curr : std_logic_vector(3 downto 0);" has something to do with the current value and "signal cd : std_logic_vector(2 downto 0);" has something to do with changing digits. However I am not quite sure how to go about coding the push buttons (signal pb).

View attachment 7segclock.rar


Any help will be appreciated.

Thanks

 

[TrickyDicky]

And what is the problem? the pushbuttons will just be inputs to the system.

 

[fabynx]

Was just wondering how but I worked it out.
Thanks anyway