51單片機(jī)實(shí)現(xiàn)音樂播放
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2022-1-30 04:27 上傳
#include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit SPK = P2^7;
uchar tone_h; //高音
uchar tone_l; //低音
uint note = 1; //音符
uchar beat; //節(jié)拍
uchar code chuzhi[3][16]={ //音調(diào)對應(yīng)的計(jì)數(shù)初值
0xff,0xff,//占0位
0xf8,0x8c,//低1
0xf9,0x5b,// 2
0xfa,0x15,// 3
0xfa,0x67,// 4
0xfb,0x04,// 5
0xfb,0x90,// 6
0xfc,0x0c,//低7
0xff,0xff,//占0位
0xfc,0x44,//中1
0xfc,0xac,// 2
0xfd,0x09,// 3
0xfd,0x34,// 4
0xfd,0x82,// 5
0xfd,0xc8,// 6
0xfe,0x06,//中7
0xff,0xff,//占0位
0xfe,0x22,//高1
0xfe,0x56,// 2
0xfe,0x85,// 3
0xfe,0x9a,// 4
0xfe,0xc1,// 5
0xfe,0xe4,// 6
0xff,0x03 //高7
};
//****** 測試曲譜 ****** 個位：音調(diào) ，十位：低中高音 對應(yīng) 0 1 2，千百位：節(jié)拍 1~16
uint code test2[] = { 120, //曲速 暫時未用到
401,402,403,404,405,406,407,
611,612,613,614,615,616,617,
821,822,823,824,825,826,827,
0xffff //0xffff表示結(jié)尾
};
//****** 生日快樂,蟲兒飛 ******
uint code test[] = { 120,
413,213,213,414,415,813,812,
411,211,211,412,413,313,107,807,//加點(diǎn)40X，只有加橫為11X，兩個連起來加橫21X.
406,413,812,406,413,812,406,413,312,811,410,
213,412,815,214,413,812,
215,414,213,412,315,113,812,
406,413,812,
406,413,812,
214,213,214,213,811,
214,213,214,213,811,612,211,411,410,
0xffff
};
void delayms(uint ms) /*ms 等于1時，延時1ms 等于2時，延時2ms，以此類推*/
{
uchar a,b,c; //+3
while(ms--)
{
for(c=1;c>0;c--) // 1+2 = 3
for(b=142;b>0;b--) // 1*( 1+142*2)) = 285
for(a=2;a>0;a--); // 142*(1+2*2) = 710
}
}
void delay125ms(uint pai) //延時 ？*125ms 即？個節(jié)拍
{
uchar a,b,c;
while(pai--)
{
for(c=239;c>0;c--)
for(b=104;b>0;b--)
for(a=1;a>0;a--);
}
}
void timer0() interrupt 1
{
TH0 = tone_h;
TL0 = tone_l;
SPK = ~SPK;
}
void timer_init()
{
EA = 1;
ET0 = 1;
PT0 = 1;
TMOD = 0x11;
TH0 = 255;
TL0 = 255;
}
void main()
{
timer_init();
note = 1;
while(1)
{
if(test[note] == 0xffff)
{
note = 1;
}
if(test[note]%10 != 0) //音調(diào)不為0 【音調(diào)為0時表示不發(fā)聲，但有節(jié)拍】
{
tone_h = TH0 = chuzhi[test[note]%100/10][(test[note]%10)*2 ]; //音調(diào)高位 【二維數(shù)組 第1維表示低中高音，第二維表示音調(diào)】
tone_l = TL0 = chuzhi[test[note]%100/10][(test[note]%10)*2 + 1]; //音調(diào)低位
TR0 = 1;
}
delay125ms(test[note]/100); //節(jié)拍
TR0 = 0;
delayms(30);
note++; //下一個音符
}
}
// 411,411,415,415,416,416,815,
// 414,414,413,413,412,412,811,
// 415,415,414,414,413,413,812,
// 415,415,414,414,413,413,812,
// 411,411,415,415,416,416,815,
// 411,411,415,415,416,416,815,
// 414,414,413,413,412,412,811,410,//一閃一閃亮晶晶
//生日歌//
// 205,205,406,405,411,807,
// 205,205,406,405,412,811,
// 205,205,415,413,411,407,406,
// 314,114,413,411,413,812,
// 305,105,406,405,411,807,
// 305,105,406,405,412,811,
// 305,105,415,413,411,407,406,
// 314,114,413,411,412,811,410,
//歡樂頌//
// 413,413,414,415,415,414,413,412,411,411,412,413,313,412,812,
// 413,413,414,415,415,414,413,412,411,411,412,413,312,411,811,
// 412,412,413,411,412,213,214,213,211,412,213,214,213,212,411,412,415,413,413,413,414,415,
// 215,214,213,214,412,411,411,412,413,312,411,811,410,
//大海//
//205,206,111,411,111,411,206,205,111,411,112,411,206,211,112,412,112,412,211,206,112,412,113,412,213,215,
//116,415,115,416,215,213,212,213,212,211,406,205,206,111,411,111,411,406,811,410,
//213,215,116,416,116,416,211,216,115,415,116,415,213,212,111,411,111,411,412,813,410,
//213,212,111,411,111,411,211,216,115,415,116,415,213,215,316,211,411,216,215,815,410,
//213,215,116,416,116,416,211,216,115,415,116,415,213,212,111,411,111,411,415,813,410,
//213,212,111,411,111,411,212,213,115,415,113,415,213,215,806,410,210,206,113,412,111,411,410,
//205,206,111,411,111,411,206,205,111,411,112,411,206,211,112,412,112,412,211,206,112,412,113,412,213,215,
//116,415,115,416,215,213,212,213,212,211,406,205,206,111,411,112,411,212,211,411,
//213,215,116,416,116,416,211,216,115,415,116,415,213,212,111,411,111,411,412,813,410,
//213,212,111,411,111,411,211,216,115,415,116,415,213,215,316,211,411,216,215,815,410,
//213,215,116,416,116,416,211,216,115,415,116,415,213,212,111,411,111,411,415,813,410,
//213,212,111,411,111,411,212,213,115,415,113,415,213,215,806,410,210,206,113,412,111,411,410,
//大海舒緩版本//
//205,206,211,411,211,411,206,205,211,411,212,411,206,211,212,412,212,412,211,206,212,412,213,412,213,215,
//216,415,215,416,215,213,212,213,212,211,406,205,206,211,411,211,411,406,811,410,
//213,215,216,416,216,416,211,216,215,415,216,415,213,212,211,411,211,411,412,813,410,
//213,212,211,411,211,411,211,216,215,415,216,415,213,215,316,211,411,216,215,815,410,
//213,215,216,416,216,416,211,216,215,415,216,415,213,212,211,411,211,411,415,813,410,
//213,212,211,411,211,411,212,213,215,415,213,415,213,215,806,410,210,206,213,412,211,411,410,
//205,206,211,411,211,411,206,205,211,411,212,411,206,211,212,412,212,412,211,206,212,412,213,412,213,215,
//216,415,215,416,215,213,212,213,212,211,406,205,206,211,411,212,411,212,211,411,
//213,215,216,416,216,416,211,216,215,415,216,415,213,212,211,411,211,411,412,813,410,
//213,212,211,411,211,411,211,216,215,415,216,415,213,215,316,211,411,216,215,815,410,
//213,215,216,416,216,416,211,216,215,415,216,415,213,212,211,411,211,411,415,813,410,
//213,212,211,411,211,411,212,213,215,415,213,415,213,215,806,410,210,206,213,412,211,411,410,
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