基于單片機(jī)的電子音樂門鈴設(shè)計(jì)-閱讀頁
2025-07-12 20:17本頁面
【正文】 ,num。//簡譜//編程規(guī)則:字節(jié)高位是簡譜,低位是持續(xù)時(shí)間,//代表多少個(gè)十六分音符//17代表中央C調(diào),8E代表高八度,0代表停頓//最后的0是結(jié)束標(biāo)志//歌曲1：千年之戀uchar code qnzl[]={ //千年之戀0x12,0x22,0x34,0x84,0x74,0x54,0x38,0x42,0x32,0x22,0x42,0x34,0x84,0x72,0x82,0x94,0xA8,0x08,0x32,0x31,0x21,0x32,0x52,0x32,0x31,0x21,0x32,0x62,0x32,0x31,0x21,0x32,0x82,0x71,0x81,0x71,0x51,0x32,0x22,0x32,0x31,0x21,0x32,0x52,0x32,0x31,0x21,0x32,0x62,0x32,0x31,0x21,0x32,0x83,0x82,0x71,0x72,0x02,0x63,0xA1,0xA2,0x62,0x92,0x82,0x52,0x31,0x51,0x63,0x51,0x63,0x51,0x63,0x51,0x62,0x82,0x7C,0x02,0x61,0x71,0x82,0x71,0x62,0xA2,0x71,0x76,0x61,0x71,0x82,0x71,0x62,0x52,0x31,0x36,0x61,0x71,0x82,0x71,0x62,0xA3,0x73,0x62,0x53,0x42,0x63,0x83,0x83,0x91,0x91,0x61,0x71,0x82,0x71,0x62,0x0A2,0x71,0x76,0x61,0x71,0x82,0x71,0x62,0x52,0x31,0x36,0x61,0x71,0x82,0x71,0x62,0xA3,0x73,0x62,0x53,0x42,0x82,0x88,0x02,0x74,0x93,0x89,0xff//結(jié)束標(biāo)志}。//歌曲3：小小葫蘆娃uchar code hlw[]={ //小小葫蘆娃0x83,0x63,0x51,0x61,0x03,0x81,0x61,0x51,0x81,0x63,0x01,0x81,0x61,0x63,0x51,0x63,0x01}。//簡譜音調(diào)對應(yīng)的定時(shí)器初值//uchar code cuzhi[]={ 0xff,0xff,//占位 0xFC,0x8E,//中央C調(diào)17 0xFC,0xED, 0xFD,0x43, 0xFD,0x6A, 0xFD,0xB3, 0xFD,0xF3, 0xFE,0x2D, 0xFE,0x47, //高八度17 0xFE,0x76, 0xFE,0xA1, 0xFE,0xC7, 0xFE,0xD9, 0xFE,0xF9, 0xFF,0x16 }。 //延時(shí)1MSvoid Delay(uint z)。 //播放音樂子程序void beep()。 P2=0X3F。//開總中斷 EX0=1。//外部中斷0下降沿觸發(fā)方式 EX1=1。//外部中斷1下降沿觸發(fā)方式 TMOD=0x11。ET1=1。TR1=0。 TL1=(6553650000)%256。 Delay1(1000)。//關(guān)總中斷 Delay1(1)。//不讓蜂鳴器唱歌 TR0=0。 TR1=0。 P2=0X3F。//開總中斷}void int1() interrupt 2 //門鈴按鍵：每按一次會自動(dòng)切換音樂，計(jì)時(shí)也會從新開始{ EA=0。//去抖 if(key2==0) { TR0=1。 i=0。 if(count==5) count=1。//開總中斷}void timer0() interrupt 1 //用于產(chǎn)生各種音調(diào){ TH0=timeh。 fm=~fm。 TL1=(6553650000)%256。 ++num。 P2=DSY_CODE[num%10]。 }}void song(){ uint temp。//jp是簡譜 i=0。 if(count==1) //選曲 temp=qnzl[i]。 if(count==3) temp=hlw[i]。 if(temp==0xff) break。 //取數(shù)的高4位 if(jp!=0) { timeh=cuzhi[jp*2]。 } else{ TR0=0。//關(guān)蜂鳴器 } Delay(temp%16)。 //唱完一個(gè)音停10MS fm=1。 TR0=1。 } TR0=0。 }void Delay(uint z) //延時(shí)165MS,即十六分音符{ uint x,y。x0。y0。}void Delay1(uint z) //延時(shí)1MS{ uint x,y。x0。y0。}void beep() //蜂鳴器響起{ uchar i。i50。 Delay1(1)。}第三部分：指導(dǎo)教師評語第四部分：成績評定指導(dǎo)教師簽名： 填表
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