单片机实现电子琴并可播放歌曲

0xC0,0xF9,0xA4,0xB0,
0x99,0x92,0x82,0xF8,
0x80,0x90,0x88,0x83,
0xC6,0xA1,0x86,0x8e};
//中音1-7和高音1-7对应频率列表
uint16 code NoteFrequ[] = {
523,587,659,698,784,880,988, //中音1-7
for(i=0;i<4;i++)
{
P2=buff[i];
temp=P2;
temp&=0xf0;//取P2的高四位；
while(temp!=0xf0)
{
delay5ms(5);//延时5ms去除抖动；
temp=P2;
temp&=0xf0;
while(temp!=0xf0)
{
switch(temp)
{
case 0xe0:num=i*4+0;break;//获取键值；
}
if(num==8)
{
T0LoadH = 0xff;
T0LoadL = 0x00;
TR0 = 1;
flag = 0;
ADDR0 = 0;
ADDR1 = 1;
ADDR2 = 1;
P0 = 0x00;
for(i=0;i<10000;i++);//闪烁灯全亮
PlayTwoTiger();
}
}
void PlayTwoTiger()
//计算发生时间，为总时间的0.75
/***********去除抖动********************/
while(temp!=0xf0)
{
temp=P2;
temp=temp&0xf0;
}
/************************************/
}
}
}
}
void zhongyin(uint8 num)//对应的发出中音
};
for(beat=0;beat<sizeof(TwoTigerNote);)//用节拍索引作为循环变量
{
while(!tmrflg);//每次定时器中断完成后检查并处理节拍
tmrflg = 0;
if(time == 0)
{
//启动一个新的节拍
note = Leabharlann woTigerNote[beat]-1;
void zhongyin(uint8 num);//对应发出高音
void gaoyin(uint8 num);//对应的发出高音
void main()
{
Init();
while(1)
{
KeyPress();
}
}
void Init()//函数的初始化
{
ADDR3 = 1;
ENELD = 0;
ADDR0 = 0;
sbit ADDR0 = P1^0;
sbit ADDR1 = P1^1;
sbit ADDR2 = P1^2;
sbit ADDR3 = P1^3;
sbit ENELD = P1^4;//LED控制使能
sbit BUZZ = P1^6;//蜂鸣器控制使能
//数码管的真值表
code uint8 array[]={
case 6: T0LoadH = (uint8)(NoteReload[12]>>8);T0LoadL=(uint8)NoteReload[12];TR0 = 1;flag = 1;enable = 1;break;
case 7: T0LoadH = (uint8)(NoteReload[13]>>8);T0LoadL=(uint8)NoteReload[13];TR0 = 1;flag = 1;enable = 1;break;
ADDR1 = 0;
ADDR2 = 0;
P0 = 0x00;
TMOD = 0x01;//配置T0在工作模式1
TH0 = T0LoadH;
TL0 = T0LoadL;
ET0 = 1;//使能T0中断
TR0 = 0;//占时不启动T0
EA = 1;//使能全局中断
}
void delay5ms(uint8z)//延时5ms
T0LoadH = NoteReload[note] >> 8;
T0LoadL = NoteReload[note];
//右移两位相当于除以4，移位代替除法可以加快执行速度
beatTime = (TwoTigerBeat[beat] * NoteFrequ[note]) >> 2;//计算节拍总时间
{
uint16 i;
switch(num)
{
case 1: T0LoadH = (uint8)(NoteReload[0]>>8);T0LoadL=(uint8)NoteReload[0];TR0 = 1;flag = 1;enable = 1;break;
case 2: T0LoadH = (uint8)(NoteReload[1]>>8);T0LoadL=(uint8)NoteReload[1];TR0 = 1;flag = 1;enable = 1;break;
65536 - (11059200/12)/(1047*2),
65536 - (11059200/12)/(1175*2),
65536 - (11059200/12)/(1319*2),
65536 - (11059200/12)/(1397*2),
65536 - (11059200/12)/(1568*2),
if(num==0||num<=8)
{
if(num == 0)
{
bb++;
if(bb==3)
bb = 1;
}
switch(bb)
{
case 1: zhongyin(num);break;
case 2: gaoyin(num);break;
}
}
/********************************************/
case 7: T0LoadH = (uint8)(NoteReload[6]>>8);T0LoadL=(uint8)NoteReload[6];TR0 = 1;flag = 1;enable = 1;break;
}
if(num==8)
{
T0LoadH = 0xff;
T0LoadL = 0x00;
TR0 = 1;
{
uint8x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void keypress()
{
uint8 i,temp,num;
uint8 buff[4]={0xfe,0xfd,0xfb,0xf7};//P2口每次扫描行时，只有一个低电平其他全为高电平，只改变前四位。?
case 3: T0LoadH = (uint8)(NoteReload[2]>>8);T0LoadL=(uint8)NoteReload[2];TR0 = 1;flag = 1;enable = 1;break;
case 4: T0LoadH = (uint8)(NoteReload[3]>>8);T0LoadL=(uint8)NoteReload[3];TR0 = 1;flag = 1;enable = 1;break;
1, 2, 3, 1, 1, 2, 3, 1, 3, 4, 5, 3, 4, 5,
5,6, 5,4, 3, 1, 5,6, 5,4, 3, 1, 1, 5, 1, 1, 5, 1,
};
uint8 code TwoTigerBeat[] = {
//两只老虎节拍，4表示一拍，1就是1/4拍，8就是2拍
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 4, 4, 8,3,1, 3,1, 4, 4, 3,1, 3,1, 4, 4, 4, 4, 8, 4, 4, 8,
case 5: T0LoadH = (uint8)(NoteReload[4]>>8);T0LoadL=(uint8)NoteReload[4];TR0 = 1;flag = 1;enable = 1;break;
case 6: T0LoadH = (uint8)(NoteReload[5]>>8);T0LoadL=(uint8)NoteReload[5];TR0 = 1;flag = 1;enable = 1;break;
flag = 0;
ADDR0 = 0;
ADDR1 = 1;
ADDR2 = 1;
P0 = 0x00;
for(i=0;i<10000;i++);//闪烁灯全亮
PlayTwoTiger();
}
}
void gaoyin(uint8 num)//对应的发出高音
{
uint16 i;
switch(num)
{
case 1: T0LoadH = (uint8)(NoteReload[7]>>8);T0LoadL=(uint8)NoteReload[7];TR0 = 1;flag = 1;enable = 1;break;
单片机实现电子琴并可播放歌曲可以音乐播放播放音乐单片机电子琴单片机实现音乐播放电子音乐实现歌曲
//两只老虎歌曲部分代码参考了金山摊工作室
#include<reg52.h>