含：電路圖及編寫程序
摘要
現(xiàn)當(dāng)今,單片機(jī)的應(yīng)用無(wú)處不在.利用單片機(jī)控制音樂(lè)播放也多不勝舉.音樂(lè)芯片也相當(dāng)之多,而利用單片機(jī)存儲(chǔ)音樂(lè),控制播放最為廣泛.它有功能多﹑價(jià)格優(yōu)﹑外圍電路簡(jiǎn)單的特點(diǎn),備受音樂(lè)愛好者及音樂(lè)芯片制造商的青昧.本章中,用80C51單電機(jī)及少數(shù)外圍電路控制MUSIC播放,產(chǎn)生“生日快樂(lè)歌”,并伴有彩燈閃爍.利用軟件的功能設(shè)置,使音樂(lè)和燈光有同步的效果.
對(duì)于單電機(jī)產(chǎn)生音樂(lè),關(guān)鍵是控制頻率的輸出.我們知道,不同的聲音對(duì)應(yīng)不同的頻率,產(chǎn)生有規(guī)律的頻率輸出就可以得到相應(yīng)規(guī)律的聲音.音樂(lè)中,有8個(gè)基本音符:do﹑re﹑mi﹑fa﹑so﹑la﹑xi﹑do,八個(gè)不同的音符對(duì)應(yīng)著不同的頻率.只要我們對(duì)照音符輸出相對(duì)應(yīng)的頻率,就可以產(chǎn)生美妙的音樂(lè)了.本章中采用了T0中斷的方法產(chǎn)生不同頻率,并用兩個(gè)鍵控制播放和停止.
這里，我用8051單片機(jī)控制音樂(lè)。由鍵盤控制播放，用運(yùn)算放大器的同相放大方式驅(qū)動(dòng)SPEAKER.

Now, the applying of micro chip is in anywhere, music playing is a lots which micro chip control. The music chip is very much. But it is at best to apply the micro chip.It has the characteristic which function is much and price is a little and out’s circuit is a few.So it is used by people who like music and manufacture the music chip.This chapter,using 80c51 micro chip and a few out circuit control the playing of music,and give birth to music of happy birthday, withing lampion swichover working.Music and light have synchronous effect.
For the micro chip giving birth to music,the importance is controlling output of frequence.As we know,the different music has the different frequence,the output of frequence which has rule can gain music that rule accordingly.Have eight basic music’s bits:do,re,mi,fa,so,la,xi,do,eight basic bits have different frequence.So if we output frequence of music basic bit accordingly,music can gain accordingly too.The output of frequence used method of T0 stopping in this chapter,and two keypress control playing and stop. This chapter,We control music by 8051 micro chip,the keypress control playing,and control speaker by in-phase blowing up method of counting blowing up.


關(guān)鍵詞：8051單片機(jī)，編程，音樂(lè)，音級(jí)，音程﹑T0:中斷﹑外部中斷﹑發(fā)光二極管﹑鍵盤﹑音樂(lè)﹑揚(yáng)聲器﹑頻率.


目錄

1.摘要
2. 正文
2.1 前言
2.2 基本構(gòu)成,硬件軟件,提綱圖器器件原理,定理
2.2.1 計(jì)算T值
2.2.2音拍的產(chǎn)生
2.2.3驅(qū)動(dòng)電路
2.2.4程序框圖
3. 結(jié)果（補(bǔ)充，討論，為什么）
4. 參考資料
5. 致謝