给大家分享下我的按键消抖程序(VHDL)

Sea_eeworld

给大家分享下我的按键消抖程序(VHDL) [复制链接]

网上也很多，这是前一段自己写的一个：

--filename : main part of digital clock system
--designed by : TangQF
--inputs&outputs introduction:
--clk_key_deal : clk_key_deal input
--reset : system reset signal
--key_mode : key input of the board to alter clock's work-mode
--key_add : key input of the board to add the number of

time'second or minute or hour
--key_mode_out : the key output after being delt
--key_add_out : the key output after being delt
--date : 2010.03.14

--begin of text
entity key_deal is
port (key_mode,key_add,clk_key_deal : in bit;
      key_mode_out,key_add_out : out bit);
end key_deal;

architecture ocean of key_deal is

signal k00,k01 : bit;
signal k10,k11 : bit;

begin

process(clk_key_deal)
begin
if clk_key_deal'event and clk_key_deal='1' then
k00<=k01;
k01<=key_mode;
key_mode_out<=k00 and k01 and key_mode;

k10<=k11;
k11<=key_add;
key_add_out<=k10 and k11 and key_add;
end if;
end process;

end ocean;
--the end

[ 本帖最后由 Sea_eeworld 于 2010-6-24 11:25 编辑 ]

soso

谢谢分享