【正文】 單片微型機原理、應(yīng)用與實驗（第四版）。要想在競爭異常激烈的現(xiàn)代社會立足，就必須有實力。第一天剛開始的時候感覺很難，不知道怎么去做，怎么去編寫程序...好多的空白，特別是在不見老師情況下，只能自己看書查資料。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 }。 功能說明：1 先把樂譜的音符找出，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來產(chǎn)生10毫秒的時間基準，然后設(shè)置一個中斷計數(shù)器，通過判別中斷計數(shù)器的值來控制節(jié)拍時間的長短。第16腳：背光源負極。第2腳：VDD接5V正電源。擴充外部存儲器時，作地址總線（A8~A15）使用。 芯片引腳簡要說明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位準雙向I/O口，但在整個系統(tǒng)中，對相應(yīng)的口鎖存器置“1” 后，這8個腳還具有第二功能。 設(shè)計要求：（1）按設(shè)計指標進行電路設(shè)計；（2）列出音階與單片機定時器輸出頻率關(guān)系表格；（3）制作符合設(shè)計指標的硬件電路。隨著