求单片机电子音乐盒的设计 -

标题: 求单片机电子音乐盒的设计 [打印本页]

作者: joeky 时间: 2017-5-12 18:00
标题: 求单片机电子音乐盒的设计
电子音乐盒的设计
设计任务：
1、查阅资料，了解单片机控制单音喇叭发声原理
2、设计一款基于单片机的音乐盒
3、通过按钮可以选择不同的音乐（点击按钮切换下一首）

作者: joeky 时间: 2017-5-12 18:44
#include<reg52.h>             //库文件
#define uchar unsigned char//宏定义无符号字符型
#define uint unsigned int  //宏定义无符号整型

uchar Count;
sbit Key=P3^4;//P3.4控制T0口中断
sbit _Speak =P2^0 ; //讯响器控制脚  //定义一个位变量_Speak

unsigned char code SONG[] ={
//路边的野华不要采
0xFF,0x20,0x30,0x1C,0x10,0x18,0x20,
0x15,0x20,0x1C,0x20,0x20,0x20,0x26,0x40,0x20,0x20,0x2B,0x20,0x26,0x20,0x20,0x20,
0x30,0x80,0xFF,0x20,0x20,0x1C,0x10,0x18,0x10,0x20,0x20,0x26,0x20,0x2B,0x20,0x30,
0x20,0x2B,0x40,0x20,0x20,0x1C,0x10,0x18,0x10,0x20,0x20,0x26,0x20,0x2B,0x20,0x30,
0x20,0x2B,0x40,0x20,0x30,0x1C,0x10,0x18,0x20,0x15,0x20,0x1C,0x20,0x20,0x20,0x26,
0x40,0x20,0x20,0x2B,0x20,0x26,0x20,0x20,0x20,0x30,0x80,0x20,0x30,0x1C,0x10,0x20,
0x10,0x1C,0x10,0x20,0x20,0x26,0x20,0x2B,0x20,0x30,0x20,0x2B,0x40,0x20,0x15,0x1F,
0x05,0x20,0x10,0x1C,0x10,0x20,0x20,0x26,0x20,0x2B,0x20,0x30,0x20,0x2B,0x40,0x20,
0x30,0x1C,0x10,0x18,0x20,0x15,0x20,0x1C,0x20,0x20,0x20,0x26,0x40,0x20,0x20,0x2B,
0x20,0x26,0x20,0x20,0x20,0x30,0x30,0x20,0x30,0x1C,0x10,0x18,0x40,0x1C,0x20,0x20,
0x20,0x26,0x40,0x13,0x60,0x18,0x20,0x15,0x40,0x13,0x40,0x18,0x80,0x00,
//
0x26,0x20,0x20,0x20,0x20,0x20,0x26,0x10,0x20,0x10,0x20,0x80,0x26,0x20,0x30,0x20,
0x30,0x20,0x39,0x10,0x30,0x10,0x30,0x80,0x26,0x20,0x20,0x20,0x20,0x20,0x1c,0x20,
0x20,0x80,0x2b,0x20,0x26,0x20,0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x80,0x26,0x20,
0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x60,0x40,0x10,0x39,0x10,0x26,0x20,
0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x80,0x26,0x20,0x2b,0x10,0x2b,0x10,
0x2b,0x20,0x30,0x10,0x39,0x10,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x20,
0x20,0x10,0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x18,0x20,0x18,0x20,0x26,0x20,
0x20,0x20,0x20,0x40,0x26,0x20,0x2b,0x20,0x30,0x20,0x30,0x20,0x1c,0x20,0x20,0x20,
0x20,0x80,0x1c,0x20,0x1c,0x20,0x1c,0x20,0x30,0x20,0x30,0x60,0x39,0x10,0x30,0x10,
0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x10,0x26,0x10,0x26,0x10,0x2b,0x10,0x2b,0x80,
0x18,0x20,0x18,0x20,0x26,0x20,0x20,0x20,0x20,0x60,0x26,0x10,0x2b,0x20,0x30,0x20,
0x30,0x20,0x1c,0x20,0x20,0x20,0x20,0x80,0x26,0x20,0x30,0x10,0x30,0x10,0x30,0x20,
0x39,0x20,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x10,0x40,0x10,0x20,0x10,
0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x00,};

void Time0_Init()//初始化函数
{
TMOD = 0x01;//定时器中断地工作状态为1
IE = 0x82;  //p127 中断允许寄存器，82=10000010，IE.7位为1表示CPU开放中断，IE.1表示允许定时器T0溢出中断
TH0 = 0xD8; //为T0计数器付初值，高位TH0=0XD8,低位TL0=0XF0，65536-55536=10000，表明T0计数器计数10000个计数周期后溢出
TL0 = 0xF0; //12MZ晶振，10ms
}

void Time0_Int() interrupt 1 //定时计数器T0中断p128
{
TH0 = 0xD8;  //重装初值
TL0 = 0xF0;
Count++; //长度加1，执行一次，中断计数器加一
}

void Delay_xMs(unsigned int x) //1MS 延时子程序
{
unsigned int i,j;
for( i =0;i < x;i++ )
{
for( j =0;j<3;j++ );
}
}

void Play_Song(unsigned char i) //:歌曲播放子程序i 为播放哪一段曲目
{
unsigned char Temp1,Temp2;
unsigned int Addr=0;
Count = 0; //中断计数器清0
Addr=i*165;
while(1)
{
Temp1 = SONG[Addr++];
if ( Temp1 == 0xFF ) //休止符
{
TR0 = 0; Delay_xMs(100);
}
else if ( Temp1 == 0x00 ) //歌曲结束符
{
return;
}
else
{
Temp2 = SONG[Addr++];
TR0 = 1;
while(1)
{
_Speak = ~_Speak; //按位取反指令
Delay_xMs(Temp1);
if ( Temp2 == Count )
{
Count = 0;
break;
}
}
}
}
}
void main() //主程序
{
Time0_Init(); //定时器0 中断初始化
while(1)
{
   if(Key==0){
Play_Song(0);
if(Key==0){
Play_Song(1);}}else{
TR0=0;
}
} //播放
}

这是目前的代码，我想知道怎么通过点击P3.4的按钮实现切换到下一首歌曲的功能

作者: joeky 时间: 2017-5-12 18:45
对了，main函数那里是错的，并不能实现切换歌曲

作者: 单片机啊啊啊6 时间: 2019-11-12 19:46
代码：
#include <reg51.h>

sbit speaker = P3^1;
sbit key0 = P2^0;
sbit key1 = P2^1;
sbit key2 = P2^2;
sbit key3 = P2^3;
unsigned char k, i;
unsigned char timer0h, timer0l, time ,num ,tempi,tempstop,tempan,temptime;

unsigned char code table[]={//我做的数码管数字显示
0x3f,0x30,0xed,0x79,
0x72,0x5b,0x5f};
/*
unsigned char code table[]={ //数码管数字显示
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
*/
//---------------------------------1 2 3 4 5 6 7音调
code unsigned char FREQH[] = { //TH0部分
0xF2, 0xF3, 0xF5, 0xF5, 0xF6, 0xF7, 0xF8, //低音1234567
0xF9, 0xF9, 0xFA, 0xFA, 0xFB, 0xFB, 0xFC, 0xFC, //中
0xFC, 0xFD, 0xFD, 0xFD, 0xFD, 0xFE,             //高
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFF //超高
};
code unsigned char FREQL[] = { //TL0部分
0x42, 0xC1, 0x17, 0xB6, 0xD0, 0xD1, 0xB6,
0x21, 0xE1, 0x8C, 0xD8, 0x68, 0xE9, 0x5B, 0x8F,
0xEE, 0x44, 0x6B, 0xB4, 0xF4, 0x2D,
0x47, 0x77, 0xA2, 0xB6, 0xDA, 0xFA, 0x16
};
code unsigned char song[][150]={ //歌曲

{3,2,2, 3,2,2, 3,2,2, 1,2,1, 3,2,2, 0,0,0, 5,2,2, 0,0,0,
5,1,2, 0,0,0, 1,2,1, 0,0,0, 5,1,1, 0,0,0, 3,1,2, 0,0,0,
6,1,2, 7,1,2, 7,1,2, 6,1,2, 5,1,2, 3,2,2, 5,2,1, 6,2,1,
0,0,0, 4,2,1, 5,2,1, 0,0,0, 3,2,1, 0,0,0, 1,2,1, 2,2,1,
7,1,2, 0,0,0, 1,2,2, 0,0,0, 5,1,1, 0,0,0, 0,0,0, 3,1,1,
0,0,0, 6,1,2, 7,1,2, 0,0,0, 7,1,2, 6,1,2, 5,1,2, 3,2,2, 0,0,100
},

{6, 2, 3,  5, 2, 1,  3, 2, 2,  5, 2, 2,  1, 3, 2,  6, 2, 1,  5, 2, 1,
//一个音符有三个数字。前为第几个音、中为第几个八度、后为时长（以半拍为单位）。
//6, 2, 3 分别代表：６, 中音, ３个半拍;
//5, 2, 1 分别代表：５, 中音, １个半拍;
//3, 2, 2 分别代表：３, 中音, ２个半拍;
//5, 2, 2 分别代表：５, 中音, ２个半拍;
//1, 3, 2 分别代表：１, 高音, ２个半拍;
6, 2, 4, 3, 2, 2, 5, 2, 1, 6, 2, 1, 5, 2, 2, 3, 2, 2, 1, 2, 1,
6, 1, 1, 5, 2, 1, 3, 2, 1, 2, 2, 4, 2, 2, 3, 3, 2, 1, 5, 2, 2,
5, 2, 1, 6, 2, 1, 3, 2, 2, 2, 2, 2, 1, 2, 4, 5, 2, 3, 3, 2, 1,
2, 2, 1, 1, 2, 1, 6, 1, 1, 1, 2, 1, 5, 1, 6, 0, 0, 100},

{6, 3, 1, 6, 3, 1, 6, 3, 1, 6, 3, 1, 6, 3, 1, 6, 3, 1, 0,0,100},

{0,0,1, 0,0,100},

};

void delay(unsigned char t)    //节拍
{
unsigned char t1;
unsigned long t2;
for(t1 = 0; t1 < t; t1++)
for(t2 = 0; t2 < 8000; t2++);
TR0 = 0;
}

void delaya(unsigned char t)    //节拍
{
unsigned char t1;
unsigned long t2;
for(t1 = 0; t1 < t; t1++)
for(t2 = 0; t2 < 2000; t2++);
TR0 = 0;
}

void delay1(int z) //延迟z ms
{
int i,j;
for(i=0;i<110;i++)
for(j=0;j<z;j++);
}
/*
void an() //按键检测
{
P2=0xff;
if(key1==0||key2==0||key3==0)
{
delay1(10);
if(key1==0)
{
num++;
if(num==4)
num=0;
i=0;
time=0;
}
if(key2==0)
{
num--;
if(num==-1)
num=3;
i=0;
time=0;
}
if(key3==0)
{
tempstop=!tempstop;
}
while(!key1||!key2||!key3);
delay1(5);
while(!key1||!key2||!key3);
}
}*/

void an() //按键检测
{
P2=0xff;
tempan=P2;
tempan=tempan&0x0f;
while(tempan!=0x0f)
{
delay1(5);
tempan=P2;
tempan=tempan&0x0f;
while(tempan==0x0f);
switch(tempan)
{
case 0x0e:
num++;
if(num==4)
num=0;
i=0;
time=0;
break;
case 0x0d:
num--;
if(num==-1)
num=3;
i=0;
time=0;
break;
case 0x0b:
tempstop=!tempstop;
break;
case 0x07:
temptime=!temptime;
break;
}
while(tempan!=0x0f)
{
tempan=P2;
tempan=tempan&0x0f;
delay1(5);
}
}
}

//--------------------------------------
void main(void)
{
tempi=1;

TMOD = 1;
ET0 = 1;
EA = 1;

while(1)
{
if(song[num][i+2]==100)
i=0;
k = song[num][i]+7*(song[num][i + 1]-1);
timer0h = FREQH[k];
timer0l = FREQL[k];
time = song[num][i + 2];
if(tempi==1)
i += 3;

TH0 = timer0h;
TL0 = timer0l;
TR0 = 1;
if(!temptime)
delay(time);
else
delaya(time);

P1=table[num+1];
while(tempstop)
an();
}
}

void t0int() interrupt 1
{
TR0 = 0;
speaker = !speaker;
TH0 = timer0h;
TL0 = timer0l;
TR0 = 1;

an();
}

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