C51单片机学习资料.zip

#include "reg52.h" typedef unsigned char u8; typedef unsigned int u16; sbit LSA=P2^2; sbit LSB=P2^3; sbit LSC=P2^4; u8 code smgduan[16]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; void delay(u16 i) { while(i--); } void DipDisplay() { u8 i; for(i=0;i<8;i++) { switch(i) { case (0): LSA=0;LSB=0;LSC=0;break; case (1): LSA=1;LSB=0;LSC=0;break; case (2): LSA=0;LSB=1;LSC=0;break; case (3): LSA=1;LSB=1;LSC=0;break; case (4): LSA=0;LSB=0;LSC=1;break; case (5): LSA=1;LSB=0;LSC=1;break; case (6): LSA=0;LSB=1;LSC=1;break; case (7): LSA=1;LSB=1;LSC=1;break; } P0=smgduan[i]; delay(100); P0=0x00; } } void main() { while(1) { DipDisplay(); } }