簡(jiǎn)易單片機(jī)Mp3程序蜂鳴器播放敢問路在何方（新手入門級(jí)）

ID:964116 · 發(fā)表于 2021-9-8 19:55

包含Proteus仿真和源碼

單片機(jī)源程序如下:

#include <reg52.h>
sbit beep = P2^3;
unsigned char timer0H, timer0L, time;
//單片機(jī)晶振采用11.0592MHz
code unsigned char FREQH[] = {
0xF2, 0xF3, 0xF5, 0xF5, 0xF6, 0xF7, 0xF8, //低音1234567
0xF9, 0xF9, 0xFA, 0xFA, 0xFB, 0xFB, 0xFC, 0xFC,//1,2,3,4,5,6,7,i
0xFC, 0xFD, 0xFD, 0xFD, 0xFD, 0xFE, //高音 234567
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFF}; //超高音 1234567
code unsigned char FREQL[] =
{
0x42, 0xC1, 0x17, 0xB6, 0xD0, 0xD1, 0xB6, //低音1234567
0x21, 0xE1, 0x8C, 0xD8, 0x68, 0xE9, 0x5B, 0x8F, //1,2,3,4,5,6,7,i
0xEE, 0x44, 0x6B, 0xB4, 0xF4, 0x2D, //高音 234567
0x47, 0x77, 0xA2, 0xB6, 0xDA, 0xFA, 0x16 //超高音 1234567
};
code unsigned char song[] =
{
6, 1, 2, 1, 2, 4, 6, 1, 2, 3, 2, 4, 2, 2, 2, 2, 2, 2, 3, 2, 1, 2, 2, 1, 1, 1, 6, //你挑著擔(dān)
7, 1, 2, 6, 1, 4, 7, 1, 2, 2, 2, 4, 3, 2, 2, 1, 2, 2, //我牽著馬
6, 1, 4, 6, 1, 6, 3, 2, 6, 6, 2, 5, 3, 2, 2, 6, 2, 5,
5, 2, 2, 4, 2, 2, 3, 2, 6, 1, 2, 5, 2, 2, 2, 3, 2, 6,
4, 2, 2, 3, 2, 2, 2, 2, 10, //迎來日出，送走晚霞
6, 1, 4, 3, 2, 4, 2, 2, 2, 3, 2, 2, 6, 1, 4, 1, 2, 8,
3, 2, 4, 2, 2, 2, 7, 1, 4, 3, 2, 2, 2, 2, 2, 6, 1, 2, 1, 2, 2, 2, 2, 2, 3, 2, 10, //踏平坎坷成大道
3, 2, 6, 6, 2, 4, 3, 2, 2, 6, 2, 4, 5, 2, 2, 4, 2, 2, 3, 2, 6, 5, 2, 2, 2, 2, 4,
4, 2, 2, 3, 2, 2, 2, 2, 2, 1, 2, 4, 2, 2, 8, 3, 2, 4, //斗罷艱險(xiǎn)又出發(fā)
2, 2, 2, 7, 1, 4, 3, 2, 2, 7, 1, 2, 6, 1, 2, 5, 1, 4, 6, 1, 8,
3, 2, 4, 5, 2, 8, 3, 2, 2, 5, 2, 2, 6, 2, 5,
1, 3, 2, 7, 2, 2, 6, 2, 2, 5, 2, 4, 6, 2, 10, //啦啦啦啦啦啦啦啦
1, 3, 6, 7, 2, 5, 6, 2, 2, 6, 2, 4, 5, 2, 6, 5, 2, 2, 6, 2, 2, 3, 2, 10, //一番番春秋冬夏
1, 3, 6, 7, 2, 5, 6, 2, 2, 6, 2, 4, 5, 2, 6, 6, 2, 2, 3, 2, 10, //一番番酸甜苦辣
6, 1, 5, 1, 2, 2, 3, 2, 5, 1, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 8, //敢問路在何方
2, 2, 2, 7, 3, 4, 2, 2, 2, 7, 1, 2, 6, 1, 2, 5, 1, 4, 6, 1, 10, //路在腳下
6, 1, 5, 1, 2, 2, 3, 2, 5, 1, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 8, //敢問路在何方
3, 2, 4, 5, 2, 6, 3, 2, 4, 7, 2, 5,
1, 3, 2, 7, 2, 2, 6, 2, 2, 5, 2, 4, 6, 2, 10, 6, 2, 10, 0, 0, 0 //路在腳下
};
void t0int() interrupt 1 //T0中斷程序，控制發(fā)音的音調(diào)
{
TR0 = 0; //先關(guān)閉T0
beep = !beep; //輸出方波, 發(fā)音
TH0 = timer0H; //下次的中斷時(shí)間, 這個(gè)時(shí)間, 控制音調(diào)高低
TL0 = timer0L;
TR0 = 1; //啟動(dòng)T0
}
void delay(unsigned char t) //延時(shí)程序，控制發(fā)音的時(shí)間長度
{
unsigned char t1;
unsigned long t2;
for(t1 = 0; t1 < t; t1++) //雙重循環(huán), 共延時(shí)t個(gè)半拍
for(t2 = 0; t2 < 4000; t2++); //延時(shí)期間, 可進(jìn)入T0中斷去發(fā)音
TR0 = 0; //關(guān)閉T0, 停止發(fā)音
}
void sing() //演奏一個(gè)音符
{
TH0 = timer0H; //控制音調(diào)
TL0 = timer0L;
TR0 = 1; //啟動(dòng)T0, 由T0輸出方波去發(fā)音
delay(time); //控制時(shí)間長度
}
void main(void)
{
unsigned char k, i;
TMOD = 1; //置T0定時(shí)工作方式1
ET0 = 1; //開T0中斷
EA = 1; //開總中斷
while(1)
{
i = 0;
time = 1;
while(time)
{
k = song[i] + 7 * song[i + 1] - 1;//第i個(gè)是音符, 第i+1個(gè)是第幾個(gè)八度
timer0H = FREQH[k]; //從數(shù)據(jù)表中讀出頻率數(shù)值
timer0L = FREQL[k]; //實(shí)際上, 是定時(shí)的時(shí)間長度
time = song[i + 2]; //讀出時(shí)間長度數(shù)值
i += 3;
sing(); //發(fā)出一個(gè)音符
}
}
}