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Altera_Forum's avatar
Altera_Forum
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8 years ago

Implementation of VHDL program on FPGA

Hello, I try to implement a simple vhdl program " if the switch button is ON then the led has to be ON" on FPGA using Quartus but it doesn't work means the switch is ON but the led is still OFF. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

yes i have the correct pinout.

library ieee;

use ieee.std_logic_1164.all;

use IEEE.STD_LOGIC_ARITH.ALL;

use IEEE.STD_LOGIC_UNSIGNED.ALL;

entity TEST is port (

bouton: in std_logic;

led0: out std_logic ;

led1: out std_logic ;

led2: out std_logic ;

led3: out std_logic

);

end TEST;

architecture behavior of TEST is

begin

process (bouton)

begin

if bouton = '1' then

led0 <= '0';

led1 <= '1';

led2 <= '1';

led3 <= '1';

else

led0 <= '1';

led1 <= '0';

led2 <= '0';

led3 <= '0';

end if;

end process;

end behavior;