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Altera_Forum's avatar
Altera_Forum
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9 years ago

Customized signal

Hello, for my project, i need to generate an input that is customizable. Means that i want to customize the high state and low state. For example, I set 1 sec for high state and 0.5 sec for low state...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago


signal cnt : unsigned(31 downto 0); 
process(clk)
begin
  if rising_edge(clk) then
    cnt <= cnt + 1;
     if cnt = ONE_S then
       op <= '1';
    elsif cnt = ONE_S_PLUS_0_5s then
       op <= '0';
    end if;
  end if;
end process;