Design a BCD counter with a asynchronous master reset. Display the values 0 to 9 on the 7-segment display and whenever the count is 1, 3 or 5, a Led will turn on.
HI,i have a problem with the program with regards to the led_on.Can any kind soul provides some advice on this?
This is so far what i've done,
-- a BCD coubter with asynchronous reset
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity bcd_counter is
port ( clk, reset_bar,led_on: in std_logic;
q : out std_logic_vector (9 downto 0));
end bcd_counter;
architecture flow of bcd_counter is
signal count_sig: unsigned (9 downto 0);
begin
process (clk, reset_bar,led_on)
begin
if (reset_bar = '1' and led_on = '1') then
count_sig <= "0000000000";
elsif falling_edge (clk) then
if (count_sig = 9) then
count_sig <= "0000000000";
else
count_sig <= count_sig +1;
if(led_on = '1') then
count_sig <="0000000000";
else
count_sig<= count_sig +1;
end if;
end if;
end if;
end process;
q <= std_logic_vector (count_sig);
end flow;
