基于單片機(jī)音樂(lè)播放器課程設(shè)計(jì)-免費(fèi)閱讀
【正文】 單片微型機(jī)原理、應(yīng)用與實(shí)驗(yàn)（第四版）。要想在競(jìng)爭(zhēng)異常激烈的現(xiàn)代社會(huì)立足，就必須有實(shí)力。第一天剛開(kāi)始的時(shí)候感覺(jué)很難，不知道怎么去做，怎么去編寫(xiě)程序...好多的空白，特別是在不見(jiàn)老師情況下，只能自己看書(shū)查資料。x26。 mydelay(5)。 k=_crol_(0xef,m)。mydelay(3)。counter=key*7。 WriteCMD(0x01)。 break。 if (temp!=0x0f) { temp=P1。 if (temp!=0x0f) { for(i=50。mydelay(5)。 WriteCMD(0x80+0x40)。 InitialSound()。i0。} void inicry(){ LCDRW=0。 LCDE=1。 LCDRW=0。 for(uiCount=0。 } }Point+=2。} }if(LDiv2!=0) {TR0=0。 LDiv2=LDivLDiv1。 //算出音符類(lèi)型(0普通1連音2頓音) FD=Length/100。 //低音 if (SM==3) CurrentFre = 2。 // 算出4分音符的長(zhǎng)度 LDiv4 = LDiv4LDiv4*SOUND_SPACE。 else if(Octachord == 3) NewFreTab[i]=2。 unsigned char Tone,Length,SL,SH,SM,SLen,XG,FD。TR1 = 0。 Sound_Temp_TH1 = (65535(1/1200)*SYSTEM_OSC)/256。//兩只蝴蝶unsigned char code Music_Two[] ={ 0x17,0x03, 0x16,0x03, 0x17,0x01, 0x16,0x03, 0x17,0x03, 0x16,0x03, 0x15,0x01, 0x10,0x03, 0x15,0x03, 0x16,0x02, 0x16,0x0D, 0x17,0x03, 0x16,0x03, 0x15,0x03, 0x10,0x03, 0x10,0x0E, 0x15,0x04, 0x0F,0x01, 0x17,0x03, 0x16,0x03, 0x17,0x01, 0x16,0x03, 0x17,0x03, 0x16,0x03, 0x15,0x01, 0x10,0x03, 0x15,0x03, 0x16,0x02, 0x16,0x0D, 0x17,0x03,0x16,0x03, 0x15,0x03, 0x10,0x03, 0x15,0x03, 0x16,0x01,0x17,0x03, 0x16,0x03, 0x17,0x01, 0x16,0x03, 0x17,0x03, 0x16,0x03, 0x15,0x01, 0x10,0x03, 0x15,0x03, 0x16,0x02,0x16,0x0D, 0x17,0x03, 0x16,0x03, 0x15,0x03, 0x10,0x03,0x10,0x0E, 0x15,0x04, 0x0F,0x01, 0x17,0x03, 0x19,0x03, 0x19,0x01, 0x19,0x03, 0x1A,0x03, 0x19,0x03, 0x17,0x01,0x16,0x03, 0x16,0x03, 0x16,0x02, 0x16,0x0D, 0x17,0x03,0x16,0x03, 0x15,0x03, 0x10,0x03, 0x10,0x0D, 0x15,0x00, 0x19,0x03, 0x19,0x03, 0x1A,0x03, 0x1F,0x03, 0x1B,0x03,0x1B,0x03, 0x1A,0x03, 0x17,0x0D, 0x16,0x03, 0x16,0x03, 0x16,0x0D, 0x17,0x01, 0x17,0x03, 0x17,0x03, 0x19,0x03,0x1A,0x02, 0x1A,0x02, 0x10,0x03, 0x17,0x0D, 0x16,0x03, 0x16,0x01, 0x17,0x03, 0x19,0x03, 0x19,0x03, 0x17,0x03,0x19,0x02, 0x1F,0x02, 0x1B,0x03, 0x1A,0x03, 0x1A,0x0E,0x1B,0x04, 0x17,0x02, 0x1A,0x03, 0x1A,0x03, 0x1A,0x0E, 0x1B,0x04, 0x1A,0x03, 0x19,0x03, 0x17,0x03, 0x16,0x03,0x17,0x0D, 0x16,0x03, 0x17,0x03, 0x19,0x01, 0x19,0x03, 0x19,0x03, 0x1A,0x03, 0x1F,0x03, 0x1B,0x03, 0x1B,0x03 0x1A,0x03, 0x17,0x0D, 0x16,0x03, 0x16,0x03, 0x16,0x03,0x17,0x01, 0x17,0x03, 0x17,0x03, 0x19,0x03, 0x1A,0x02, 0x1A,0x02, 0x10,0x03, 0x17,0x0D, 0x16,0x03, 0x16,0x01, 0x17,0x03, 0x19,0x03, 0x19,0x03, 0x17,0x03, 0x19,0x03,0x1F,0x02, 0x1B,0x03, 0x1A,0x03, 0x1A,0x0E, 0x1B,0x04,0x17,0x02, 0x1A,0x03, 0x1A,0x03, 0x1A,0x0E, 0x1B,0x04,0x17,0x16, 0x1A,0x03, 0x1A,0x03, 0x1A,0x0E, 0x1B,0x04,0x1A,0x03, 0x19,0x03, 0x17,0x03, 0x16,0x03, 0x0F,0x02,0x10,0x03, 0x15,0x00, 0x00,0x00 }。 功能說(shuō)明：1 先把樂(lè)譜的音符找出，然后建立表建立T值的順序2 把T值表建立在TABLE1，構(gòu)成發(fā)音符的記數(shù)值放在“TABLE”3 簡(jiǎn)譜碼為高位，節(jié)拍為低四位，音符節(jié)拍碼放在程序的“TABLE”處。3 記數(shù)脈沖值與頻率的關(guān)系公式如：N=Fi/2/Fr。我們可以用T0來(lái)產(chǎn)生10毫秒的時(shí)間基準(zhǔn)，然后設(shè)置一個(gè)中斷計(jì)數(shù)器，通過(guò)判別中斷計(jì)數(shù)器的值來(lái)控制節(jié)拍時(shí)間的長(zhǎng)短。第16腳：背光源負(fù)極。第2腳：VDD接5V正電源。擴(kuò)充外部存儲(chǔ)器時(shí)，作地址總線(xiàn)（A8~A15）使用。 芯片引腳簡(jiǎn)要說(shuō)明Vcc (40) ：+5V 電源Vss (20) ：接地P0 口（32~39）：為8位雙向三態(tài)I/O口P1口（8~1）：是帶內(nèi)部上拉電阻結(jié)構(gòu)的8位準(zhǔn)雙向I/O口P2口（28~21）：也是帶內(nèi)部上拉電阻結(jié)構(gòu)的8位準(zhǔn)雙向I/O口 P3（17~ 10）：也是帶內(nèi)部上拉電阻結(jié)構(gòu)的8位準(zhǔn)雙向I/O口，但在整個(gè)系統(tǒng)中，對(duì)相應(yīng)的口鎖存器置“1” 后，這8個(gè)腳還具有第二功能。 設(shè)計(jì)要求：（1）按設(shè)計(jì)指標(biāo)進(jìn)行電路設(shè)計(jì)；（2）列出音階與單片機(jī)定時(shí)器輸出頻率關(guān)系表格；（3）制作符合設(shè)計(jì)指標(biāo)的硬件電路。隨著
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