【正文】 但是，光是完成了還是不可以自我滿足的，在從一開始的時(shí)候就懷著將制作得更加人性化，更加令人滿意，更加地使功能完美又方便地被應(yīng)用領(lǐng)域這個(gè)最終目的下，隨著對單片機(jī)這門學(xué)科的認(rèn)識(shí)加深，到達(dá)了拓展的程度，我想這個(gè)目的將在不遠(yuǎn)的時(shí)期內(nèi)被實(shí)現(xiàn)。 TL1 = Sound_Temp_TL1。 TL1 = Sound_Temp_TL1。 //算出頓音的演奏長度 else LDiv1=LDiv。 //加12是對中斷延時(shí)的補(bǔ)償 } SLen=LengthTab[Length%10]。 //計(jì)算出是否升半 CurrentFre = NewFreTab[SignTab[SL1]+SH]。 // 讀出第一個(gè)音符和它時(shí)時(shí)值 LDiv0 = 12000/Speed。 } else NewFreTab[i] = FreTab[j]。 //新的頻率表 unsigned char i,j。 ET1 = 0。 //音符定時(shí)器初值暫存 unsigned char Sound_Temp_TH1,Sound_Temp_TL1。 |調(diào)號(hào)(011) : 是指樂曲升多少個(gè)半音演奏。 //播放音樂2 Delay1ms(500)。i++) for(j=0。 簡譜對應(yīng)的簡譜碼、T值、節(jié)拍數(shù)簡譜發(fā)音簡譜碼T值節(jié)拍碼節(jié)拍數(shù)5低音SO16426011/4拍6低音LA26440022/4拍7低音TI36452433/4拍1中音DO46458041拍2中音RE56468451又1/4拍3中音MI66477761又1/2拍4中音FA76482082拍5中音SO864898A2又1/2拍6中音LA964968C3拍7中音TIA65030F3又3/4拍1高音DOB650582高音REC651103高音MID651574高音FAE651785高音SOF65217十五、歌曲的代碼 //揮著翅膀的女孩unsigned char code Music_Girl[]={ 0x17,0x02, 0x17,0x03, 0x18,0x03, 0x19,0x02, 0x15,0x03, 0x16,0x03, 0x17,0x03, 0x17,0x03, 0x17,0x03, 0x18,0x03, 0x19,0x02, 0x16,0x03, 0x17,0x03, 0x18,0x02, 0x18,0x03, 0x17,0x03, 0x15,0x02, 0x18,0x03, 0x17,0x03, 0x18,0x02, 0x10,0x03, 0x15,0x03, 0x16,0x02, 0x15,0x03, 0x16,0x03, 0x17,0x02, 0x17,0x03, 0x18,0x03, 0x19,0x02, 0x1A,0x03, 0x1B,0x03, 0x1F,0x03, 0x1F,0x03, 0x17,0x03, 0x18,0x03, 0x19,0x02, 0x16,0x03, 0x17,0x03, 0x18,0x03, 0x17,0x03, 0x18,0x03, 0x1F,0x03, 0x1F,0x02, 0x16,0x03, 0x17,0x03, 0x18,0x03, 0x17,0x03, 0x18,0x03, 0x20,0x03, 0x20,0x02, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x20,0x03, 0x21,0x03, 0x20,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x1F,0x03, 0x1B,0x03, 0x19,0x03, 0x19,0x03, 0x15,0x03, 0x1A,0x66, 0x1A,0x03, 0x19,0x03, 0x15,0x03, 0x15,0x03, 0x17,0x03, 0x16,0x66, 0x17,0x04, 0x18,0x04, 0x18,0x03, 0x19,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x20,0x03, 0x21,0x03, 0x20,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x1F,0x03, 0x1B,0x03, 0x19,0x03, 0x19,0x03, 0x15,0x03, 0x1A,0x66, 0x1A,0x03, 0x19,0x03, 0x19,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x00, 0x1A,0x03, 0x1A,0x03, 0x1A,0x03, 0x1B,0x03, 0x1B,0x03, 0x1A,0x03, 0x19,0x03, 0x19,0x02, 0x17,0x03, 0x15,0x17, 0x15,0x03, 0x16,0x03, 0x17,0x03, 0x18,0x03, 0x17,0x04, 0x18,0x0E, 0x18,0x03, 0x17,0x04, 0x18,0x0E, 0x18,0x66, 0x17,0x03, 0x18,0x03, 0x17,0x03, 0x18,0x03, 0x20,0x03, 0x20,0x02, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x20,0x03, 0x21,0x03, 0x20,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x1F,0x04, 0x1B,0x0E, 0x1B,0x03, 0x19,0x03, 0x19,0x03, 0x15,0x03, 0x1A,0x66, 0x1A,0x03, 0x19,0x03, 0x15,0x03, 0x15,0x03, 0x17,0x03, 0x16,0x66, 0x17,0x04, 0x18,0x04, 0x18,0x03, 0x19,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x20,0x03, 0x21,0x03, 0x20,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x1F,0x03, 0x1B,0x03, 0x19,0x03, 0x19,0x03, 0x15,0x03, 0x1A,0x66, 0x1A,0x03, 0x19,0x03, 0x19,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x00, 0x18,0x02, 0x18,0x03, 0x1A,0x03, 0x19,0x0D, 0x15,0x03, 0x15,0x02, 0x18,0x66, 0x16,0x02, 0x17,0x02, 0x15,0x00, 0x00,0x00}。 1/4和1/8節(jié)拍的時(shí)間設(shè)定曲調(diào)值DELAY曲調(diào)值DELAY調(diào)4/4125毫秒調(diào)4/462毫秒調(diào)3/4187毫秒調(diào)3/494毫秒調(diào)2/4250毫秒調(diào)2/4125毫秒十四、 編碼do re mi fa so la si分別編碼為1~7，重音do編為8,重音re編為9，停頓編為0。一首音樂是由許多不同的音符組成的，而每個(gè)音符對應(yīng)著不同頻率，這樣就可以利用不同的頻率的組合，加以與拍數(shù)對應(yīng)的延時(shí)，構(gòu)成音樂。中音DO（523Hz）。﹟叫升記號(hào)，表示把音在原來的基礎(chǔ)上升高半音，b叫降記音，表示在原來的基礎(chǔ)上降低半音。由于外部時(shí)鐘信號(hào)是通過一個(gè)2分頻觸發(fā)器后作為內(nèi)部時(shí)鐘信號(hào)的，所以對外部時(shí)鐘信號(hào)的占空比沒有特殊要求，但最小高電平持續(xù)時(shí)間和最大的低電平持續(xù)時(shí)間應(yīng)符合產(chǎn)品技術(shù)條件的要求。 AT89C51系列單片機(jī)九、時(shí)鐘震蕩電路AT89C51中有一個(gè)用于構(gòu)成內(nèi)部振蕩器的高增益反相放大器，引腳XTAL1和XTAL2分別是該放大器的輸入端和輸出端。Keil C51生成的目標(biāo)代碼效率非常之高，多數(shù)語句生成的匯編代碼很緊湊，容易理解。Proteus是世界上著名的EDA工具(