//《世上只有妈妈好》51单片机C语言程序
//2007-5-22作者：徐学军
//注意有一个51单片机汇编语言程序与之对应
//此程序在硬件上调试通过
//本程序的单片机晶振采用１１．０５９２ＭＨＺ
#include
sbitspeaker=P1^7;
unsigned char timer0h,timer0l,time;
//世上只有妈妈好数据表
code unsigned char sszymmh[]={ 6,2,3,5,2,1,3,2,2, 5,2,2, 1,3,2, 6,2,1, 5,2,1,
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, 0,0,0
};
// 音阶频率表 高八位
code unsigned char FREQH[]={
0xF2,0xF3,0xF5,0xF5,0xF6,0xF7,0xF8,
0xF9,0xF9,0xFA,0xFA,0xFB,0xFB,0xFC,0xFC, //1,2,3,4,5,6,7,8,i
0xFC,0xFD,0xFD,0xFD,0xFD,0xFE,
0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFF,
} ;
// 音阶频率表 低八位
code unsigned char FREQL[]={
0x42,0xC1,0x17,0xB6,0xD0,0xD1,0xB6,
0x21,0xE1,0x8C,0xD8,0x68,0xE9,0x5B,0x8F, //1,2,3,4,5,6,7,8,i
0xEE,0x44, 0x6B,0xB4,0xF4,0x2D,
0x47,0x77,0xA2,0xB6,0xDA,0xFA,0x16,
};
void delay(unsigned char t)
{
unsigned char t1;
unsigned long t2;
for(t1=0;t1{
for(t2=0;t2<8000;t2++)
{
;
}
}
TR0=0;
}
void t0int() interrupt 1
{
TR0=0;
speaker=!speaker;
TH0=timer0h;
TL0=timer0l;
TR0=1;
}
void song()
{
TH0=timer0h;
TL0=timer0l;
TR0=1;
delay(time);
}
void main(void)
{
unsigned char k,i;
TMOD=1; //置CT0定时工作方式1
EA=1;ET0=1;//IE=0x82 //CPU开中断,CT0开中断
while(1)
{
i=0;
time=1;
while(time)
{
k=sszymmh[i]+7*sszymmh[i+1]-1;
timer0h=FREQH[k];
timer0l=FREQL[k];
time=sszymmh[i+2];
i=i+3;
song();
}
}
} |
