数码管循环显示控制.doc

#includereg52.h #define uint unsigned int #define uchar unsigned char sbit w2=P2^1; sbit w1=P2^0; uchar n; uchar code table[]={ 0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71 }; void delay(); void main() { w2=1; P0=0xf0; w2=0; while(1) { for(n=0;n16;n++) { w1=1; P0=table[n]; w1=0;delay(); } } } //延迟程序 void delay() { uint x,y; for(x=200;x0;x--) for(y=400;y0;y--); } #includereg52.h #define uint unsigned int #define uchar unsigned char sbit w2=P2^1; sbit w1=P2^0; sbit D1=P1^0; uchar n; uchar code table[]={ 0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71 }; void delay(); void main() { D1=1; EA=1; EX0=1; w2=1; P0=0xf0; w2=0; while(1) { for(n=0;n16;n++) { w1=1; P0=table[n]; w1=0;delay(); } } } //延迟程序 void delay() { uint x,y; for(x=200;x0;x--) for(y=400;y0;y--); } //中断0服务程序 void exter0() interrupt 0 { D1=0; } #includereg52.h #define uint unsigned int # sbit w1=P2^0; sbit w2=P2^1; void delay(); void first(); void second(); void third(); void fourth(); void all(); void all4(); void main() { while(1) { first(); delay(); second(); delay(); third(); delay(); fourth(); delay(); all(); delay(); } } //第一个数码管显示 void first() { w2=1; P0=0xfe; w2=0; w1=1; P0=0x3f; w1=0; delay(); } //第二个数码管显示 void second() { w2=1; P0=0xfd; w2=0; w1=1; P0=0x06; w1=0; delay(); } //第三个数码管显示 void third() { w2=1; P0=0xfb; w2=0; w1=1; P0=0x5b; w1=0; delay(); } //第四个数码管显示 void fourth() { w2=1; P0=0xf7; w2=0; w1=1; P0=0x4f; w1=0; delay(); } //全部显示 void all() { all4(); P0=0x66; delay1(); all4(); P0=0x6d; delay1(); all4(); P0=0x7d; delay1(); all4(); P0=0x07; delay1(); all4(); P0=0x7f; delay1(); all4(); P0=0x6f; delay1(); all4(); P0=0x77; delay1(); all4(); P0=0x7c; delay1(); all