我想要實現蜂鳴器和點陣的同時工作,蜂鳴器工作,點陣顯示字,每一個分開運行都沒問題,但我想讓他們同時工作,我覺得應該是中斷沖突,大神們給點指點吧。。不勝感激。。。
蜂鳴器程序
#include <REG51.H> #define uchar unsigned char sbit beepIO=P1^5; uchar m,n; uchar code T[49][2]={{0,0}, {0xF8,0x8B},{0xF8,0xF2},{0xF9,0x5B},{0xF9,0xB7},{0xFA,0x14},{0xFA,0x66},{0xFA,0xB9},{0xFB,0x03},{0xFB,0x4A},{0xFB,0x8F},{0xFB,0xCF},{0xFC,0x0B}, {0xFC,0x43},{0xFC,0x78},{0xFC,0xAB},{0xFC,0xDB},{0xFD,0x08},{0xFD,0x33},{0xFD,0x5B},{0xFD,0x81},{0xFD,0xA5},{0xFD,0xC7},{0xFD,0xE7},{0xFE,0x05}, {0xFE,0x21},{0xFE,0x3C},{0xFE,0x55},{0xFE,0x6D},{0xFE,0x84},{0xFE,0x99},{0xFE,0xAD},{0xFE,0xC0},{0xFE,0x02},{0xFE,0xE3},{0xFE,0xF3},{0xFF,0x02}, {0xFF,0x10},{0xFF,0x1D},{0xFF,0x2A},{0xFF,0x36},{0xFF,0x42},{0xFF,0x4C},{0xFF,0x56},{0xFF,0x60},{0xFF,0x69},{0xFF,0x71},{0xFF,0x79},{0xFF,0x81} }; uchar code music[][2]={{0,4}, {14,2},{14,2},{16,8},{14,8},{19,8},{18,8},{0,8},{14,4},{14,4},{16,8},{14,8},{21,8},{19,8},{0,8},{14,4},{14,4},{26,8},{23,8},{19,8},{18,8},{29,10},{24,4},{24,4},{23,8},{19,8},{21,8},{23,8}, {0xFF,0xFF}};
void delay(uchar p) { uchar i,j; for(;p>0;p--) for(i=181;i>0;i--) for(j=181;j>0;j--); }
void pause() { uchar i,j; for(i=150;i>0;i--) for(j=150;j>0;j--); }
void T0_int() interrupt 1 { beepIO=!beepIO; TH0=T[m][0]; TL0=T[m][1]; }
void main() { uchar i=0; TMOD=0x01; EA=1; ET0=1; while(1) { m=music[0];n=music[1]; if(m==0x00) {TR0=0;delay(n);i++;} else if(m==0xFF) {TR0=0;delay(30);i=0;} else if(m==music[i+1][0]) {TR0=1;delay(n);TR0=0;pause();i++;} else {TR0=1;delay(n);i++;} } }
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