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Altera_Forum's avatar
Altera_Forum
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14 years ago

Vhdl codes for counter to start and purse

Hi, I need urgent help on how to design a stopwatch that can stop/purse using vhdl code. I will really appreciate any urgent reply to this. Thanks. Waiting for your replies.
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

in that case it should not be called clock enable.

-- on clock edge

if sw = '1' then

toggle <= not toggle;

end if;

if toggle = '1' then

count <= 0;

else

count up...

you will need to manage the logic of various switches now with care otherwise they might get in conflict. This where simulations helps.