顶层程序与仿真,音阶发生器程序与仿真,数控分频模块程序与仿真,自动演奏模块程序与仿真设计例见随书所附光盘中文件:。
(1)顶层VHDL程序
--文件名:
--功能:顶层文件
--最后修改日期:
library IEEE;
use ;
use ;
use ;
entity top is
Port ( clk32MHz :in std_logic; --32MHz系统时钟
handTOauto : in std_logic; --键盘输入/自动演奏
code1 :out std_logic_vector(6 downto 0); --音符显示信号
index1 :in std_logic_vector(7 downto 0); --键盘输入信号
high1 :out std_logic; --高低音节信号
spkout :out std_logic); --音频信号
end top;
architecture Behavioral of top is
component automusic
Port ( clk :in std_logic;
Auto: in std_logic;
index2:in std_logic_vector(7 downto 0);
index0 : out std_logic_vector(7 downto 0));
ponent;
component tone
Port ( index : in std_logic_vector(7 downto 0);
code : out std_logic_vector(6 downto 0);
high : out std_logic;
tone0 : out integer range 0 to 2047);
ponent;
component speaker
Port ( clk1 : in std_logic;
tone1 : in integer range 0 to 2047;
spks : out std_logic);
ponent;
signal tone2: integer range 0 to 2047;
signal indx:std_logic_vector(7 downto 0);
begin
u0:automusic port map(clk=>clk32MHZ,index2=>index1,index0=>indx,Auto=>handtoAuto);
u1: tone port map(index=>indx,tone0=>tone2,code=>code1,high=>high1);
u2: speaker port map(clk1=>clk32MHZ,tone1=>tone2,spks=>spkout);
end Behavioral;
(2)仿真
。
8.18 电子琴程序设计与仿真 来自淘豆网www.taodocs.com转载请标明出处.