想讓蜂鳴器唱歌，但現在我實在是不知道我定時器延時這塊邏輯哪出問題了求各位賜教

ID:442241 · 發表于 2019-10-18 00:10

想讓蜂鳴器唱歌，但現在我實在是不知道我邏輯在哪出問題了，感覺是定時器這塊求各位賜教

單片機源程序如下:

#include<reg52.h>
sbit sound=P1^5;
unsigned int p, k,j,z;unsigned int c=0;
unsigned int f=0;
unsigned int sound_high;unsigned int sound_low;
unsigned int pace;
unsigned char code MUSICHIGH[3][8]={{0xff,0xf9,0xf9,0xfa,0xfa,0xfb,0xfb,0xfc},//di
{0xff,0xfc,0xfc,0xfd,0xfd,0xfd,0xfd,0xfe},
{0xff,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xff}
};//三個音階高電位
unsigned char code MUSICLOW[3][8]={{0xff,0x21,0xe1,0x8c,0xd8,0x68,0xe9,0x5b},
{0xff,0x8f,0xef,0x45,0x6c,0xb4,0xf4,0x2e},
{0xff,0x47,0x78,0xa2,0xb6,0xda,0xfa,0x17}};//三個音階低電位
unsigned char code MUSIC[]={1,1,1, 1,1,1, 1,1,2, 5,0,2,
3,1,1, 3,1,1, 3,1,2, 1,1,2,
1,1,1, 3,1,1, 5,1,2, 5,1,2, 4,1,1, 3,1,1, 2,1,4,
2,1,1, 3,1,1, 4,1,2, 4,1,2, 3,1,1, 2,1,1, 3,1,2,
1,1,2, 1,1,1, 3,1,1, 2,1,2,
5,0,2, 7,0,1, 2,1,1, 1,1,3, 9 };//音符，音階，節拍
void init()
{
TMOD=0x11; //開兩定時器
TH0=0Xd8;
TL0=0Xf0;
EA=1;
ET0=1;
}
void timer0() interrupt 1//節拍
{
TH0=0Xd8;
TL0=0Xf0;
pace--;
}
void delay(unsigned char x)//延遲毫秒
{
unsigned int i,h;
for(i=x;i>0;i--)
for(h=120;h>0;h--)
;
}
void sound_delay(unsigned int sound_high,unsigned int sound_low)//產生音調
{
TH1=sound_high;
TL1=sound_low;
TR1=1;
while(TF1==0);
TR1=0;
TF1=0;
}
void main()
{
c=0;
init();
play:
while(1);
{
p=MUSIC[c];
if(p==9)
{ c=0, delay(1000); goto play;}
else
{
j=MUSIC[c++];
k=MUSIC[c++];//取音符和音高
sound_high=MUSICHIGH[k][j];
sound_low=MUSICLOW[k][j];//高低電位取數值
pace=40*MUSIC[c++];
TR0=1;
}
while(pace!=0)
{
sound=~sound;
sound_delay(sound_high,sound_low);
TR0=0;
}
}
}