“屏幕式”聲光電子琴程序
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8個按鍵發出8個基本音，
能播放內置音樂，音樂跟隨燈光閃爍
版權所有，翻版必究
作者博客：http://hi.baidu.com/haorongwu/home*/
sfr P4=0xe8;//定義P4組I0口
#include
#define uint unsigned int
#define uchar unsigned char
sbit speaker=P1^4;//喇叭接30腳
sbit key1=P4^4;//流水燈按鍵(暫時)
sbit key2=P4^6;//播放音樂按鍵（暫定）
uchar a,b,num1,s1num,n1,n2;
char num;//定義num為可以負數
uchar code yinfu[]={0xfb,0xe9, //Do
0xfc,0x5c, //Re
0xfc,0xc1, //Mi
0xfc,0xef, //Fa
0xfd,0x45, //So
0xfd,0x92, //La
0xfd,0xd0, //Si
0xfd,0xee, //Do#
0x00,0x00, //間隔
};
uchar code shengri_tone[]={ 1,0,1,2,1,4,3,0, //生日快樂音調
1,0,1,2,1,5,4,0,
1,0,1,8,6,4,3,2,0,
7,0,7,6,4,5,4,0 //0代表不發聲，即停頓；數字即為音調
};
uchar code shengri_beat[]={ 24,1,24,48,48,48,72,5,//節拍
24,1,24,48,48,48,72,5,
24,1,24,48,48,48,48,72,5,
24,1,24,48,48,48,72,5 //節拍，即tone表各音調的延時
};
uchar code ledtable[]={0x7f,0xbf,0xdf,0xef, //取反
0xf7,0xfb,0xfd,0xfe};//P0組口的發光二極管代碼（焊接過程可能會相反，具體更改）
uchar code ledtable2[]={0x7f,0xbf,0xdf,0xef, //取反
0xf7,0xfb,0xfd,0xfe};//P2組口發光二極管代碼,相反！
void check_key();//改為P3組為按鍵
void keyscan();
void turn();//順時針流動
void back();
void qianhou();
void dangshuang();
void delay(uint z);//延時函數聲明
void delay1(void);//聲明第二個延時函數
void play1(void);//播放生日快樂
void main()
{
s1num=0;//流水燈種類標志
key1=1;
key2=1;
TMOD=0x01;
TH0=a;
TL0=b;
ET0=1;//打開定時器，但是未允許中斷
TR0=1;
while(1)
{
check_key();
keyscan();
}
}
void time0() interrupt 1
{
TH0=a;
TL0=b;
speaker=~speaker;
}
void check_key()
{
P3=0xff;//先賦給P2組口高電平
switch(P3)//按下一個鍵相應4個燈亮
{
case 0xfe:P0=0xee;P2=0x77;a=0xfb;b=0xe9;EA=1;break;//P0,P2組為發光二極管組
case 0xfd:P0=0xdd;P2=0xbb;a=0xfc;b=0x5c;EA=1;break;//注意：EA不能改為TR0
case 0xfb:P0=0xbb;P2=0xdd;a=0xfc;b=0xc1;EA=1;break;
case 0xf7:P0=0x77;P2=0xee;a=0xfc;b=0xef;EA=1;break;
case 0xef:P0=0xee;P2=0x77;a=0xfd;b=0x45;EA=1;break;
case 0xdf:P0=0xdd;P2=0xbb;a=0xfd;b=0x92;EA=1;break;
case 0xbf:P0=0xbb;P2=0xdd;a=0xfd;b=0xd0;EA=1;break;
case 0x7f:P0=0x77;P2=0xee;a=0xfd;b=0xee;EA=1;break;
default:EA=0;speaker=0;//P0=0xff;P2=0xff ;
}
}
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void keyscan()
{
if(key1==0)
{
delay(5);
if(key1==0)
{
s1num++;
while(!key1);
if(s1num==1)
{
turn();
}
}
if(s1num==2)
{
back();
}
if(s1num==3)
{
qianhou();
}
if(s1num==4)
{
dangshuang();
}
if(s1num==5)
s1num=1;
}
if(key2==0)
{
delay(5);
while(~key2);
play1();
}
關鍵詞：
聲光電子琴流水
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