pwm5.vhd

用VKDL语言编写的PWM控制程序很有用本例只做了5路PWM

library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;
entity pwm5 is
port(dout:in std_logic_vector(7 downto 0);
	 pwm5:out std_logic);
end;
architecture one of pwm5 is
begin
process(dout)
begin
	if dout<20 then
		pwm5<='0';
	else pwm5<='1';	
end if;
end process;
end;