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发表于 2021-7-20 15:57:16
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#include "reg51.h" typedef unsigned int u16; typedef unsigned char u8; sbit LSA=P2^2; sbit LSB=P2^3; sbit LSC=P2^4; u8 code smgduan[17]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; u8 ssec,sec,min,shi; u8 DisplayData[8]; void delay(u16 i) { while(i--); } void Timer0Init() { TMOD|=0X01; TH0=0Xd8; TL0=0Xf0; ET0=1; EA=1; TR0=1; } void DigDisplay() { u8 i; for(i=0;i<8;i++) { switch(i) { case(0): LSA=1;LSB=1;LSC=1; break; case(1): LSA=0;LSB=1;LSC=1; break; case(2): LSA=1;LSB=0;LSC=1; break; case(3): LSA=0;LSB=0;LSC=1; break; case(4): LSA=1;LSB=1;LSC=0; break; case(5): LSA=0;LSB=1;LSC=0; break; case(6): LSA=1;LSB=0;LSC=0; break; case(7): LSA=0;LSB=0;LSC=0; break; } P0=DisplayData[i]; delay(100); P0=0x00; } } void datapros() { DisplayData[0]=smgduan[shi/10]; DisplayData[1]=smgduan[shi%10]; DisplayData[2]=0x40; DisplayData[3]=smgduan[min/10]; DisplayData[4]=smgduan[min%10]; DisplayData[5]=0x40; DisplayData[6]=smgduan[sec/10]; DisplayData[7]=smgduan[sec%10]; } void main() { Timer0Init(); while(1) { datapros(); DigDisplay(); } } void Timer0() interrupt 1 { TH0=0Xd8; TL0=0Xf0; ssec++; if(ssec>=100) { ssec=0; sec++; if(sec>=60) { sec=0; min++; if(min>=60) { shi++; min=0; } { if(shi>=60) { shi=0; } } } } } |
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