名稱(chēng)：Quartus簡(jiǎn)易樂(lè)曲發(fā)生器VHDL代碼AX301開(kāi)發(fā)板

軟件：Quartus

語(yǔ)言：VHDL

代碼功能：

12、簡(jiǎn)易樂(lè)曲發(fā)生器

利用音名與頻率的關(guān)系制作簡(jiǎn)易樂(lè)曲發(fā)生器，要求能循環(huán)播放一首樂(lè)曲，并顯示樂(lè)曲演奏時(shí)對(duì)應(yīng)的音符。

FPGA代碼Verilog/VHDL代碼資源下載：www.hdlcode.com

本代碼已在AX301開(kāi)發(fā)板驗(yàn)證，開(kāi)發(fā)板如下，其他開(kāi)發(fā)板可以修改管腳適配：

設(shè)計(jì)文檔：

1. 工程文件

2. 程序文件

3. 程序編譯

4. 管腳分配

5. RTL圖

6. Testbench

7. 仿真圖

整體仿真圖

頻率控制字產(chǎn)生模塊

音樂(lè)控制模塊

顯示模塊

部分代碼展示:

LIBRARY?ieee;
???USE?ieee.std_logic_1164.all;
--音樂(lè)播放器
ENTITY?music?IS
???PORT?(
??????sysclk??????:?IN?STD_LOGIC;--50M晶振
??????stop_key????:?IN?STD_LOGIC;--reset
??????start_key???:?IN?STD_LOGIC;--開(kāi)始
??????led?????????:?OUT?STD_LOGIC;--指示燈
??????spkout??????:?OUT?STD_LOGIC;--蜂鳴器輸出
??????bit_select??:?OUT?STD_LOGIC_VECTOR(5?DOWNTO?0);--數(shù)碼管位選
??????seg_select??:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0)--數(shù)碼管段選
???);
END?music;
ARCHITECTURE?trans?OF?music?IS
???COMPONENT?music_ctrl?IS
??????PORT?(
?????????sysclk??????:?IN?STD_LOGIC;
?????????stop_key????:?IN?STD_LOGIC;
?????????start_key???:?IN?STD_LOGIC;
?????????tonecode????:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0);
?????????tonestep????:?IN?STD_LOGIC_VECTOR(9?DOWNTO?0);
?????????led?????????:?OUT?STD_LOGIC;
?????????spkout??????:?OUT?STD_LOGIC
??????);
???END?COMPONENT;
???
???COMPONENT?display?IS
??????PORT?(
?????????clk?????????:?IN?STD_LOGIC;
?????????tonecode????:?IN?STD_LOGIC_VECTOR(7?DOWNTO?0);
?????????bit_select??:?OUT?STD_LOGIC_VECTOR(5?DOWNTO?0);
?????????seg_select??:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0)
??????);
???END?COMPONENT;
???
???COMPONENT?musicdec?IS
??????PORT?(
?????????tonecode????:?IN?STD_LOGIC_VECTOR(7?DOWNTO?0);
?????????tonestep????:?OUT?STD_LOGIC_VECTOR(9?DOWNTO?0)
??????);
???END?COMPONENT;
???
???
???SIGNAL?tonestep?????????:?STD_LOGIC_VECTOR(9?DOWNTO?0);
???SIGNAL?tonecode?????????:?STD_LOGIC_VECTOR(7?DOWNTO?0);
???SIGNAL?music_num????????:?STD_LOGIC_VECTOR(3?DOWNTO?0);
???
???SIGNAL?clk_valid????????:?STD_LOGIC;
???
???SIGNAL?led_buf????????:?STD_LOGIC;
BEGIN
???clk_valid?<=?sysclk;
????
?--頻率控制字產(chǎn)生模塊
???u_musicdec?:?musicdec
??????PORT?MAP?(
?????????tonecode??=>?tonecode,--輸入簡(jiǎn)譜
?????????tonestep??=>?tonestep--輸出頻率控制字
??????);
???
???
???--音樂(lè)控制模塊
???i_music_ctrl?:?music_ctrl
??????PORT?MAP?(
?????????sysclk?????=>?sysclk,
?????????start_key??=>?start_key,
?????????stop_key???=>?stop_key,
?????????tonecode???=>?tonecode,--簡(jiǎn)譜
?????????tonestep???=>?tonestep,--頻率控制字
?????????spkout?????=>?spkout,
?????????led????????=>?led
??????);
???
???
???--顯示模塊
???i_display?:?display
??????PORT?MAP?(
?????????clk?????????=>?sysclk,
?????????tonecode????=>?tonecode,
?????????bit_select??=>?bit_select,--數(shù)碼管位選
?????????seg_select??=>?seg_select--數(shù)碼管段選
??????);
???
END?trans;

點(diǎn)擊鏈接獲取代碼文件：http://www.hdlcode.com/index.php?m=home&c=View&a=index&aid=340