Proteus仿真51单片机控制LCD1602并行显示(含Keil源码)

#include <reg52.h> #include <intrins.h> #define uchar unsigned char #define uint unsigned int sbit RS = P2^0; sbit RW = P2^1; sbit EN = P2^2; void Delayms(uint ms) { uchar i; while(ms--) { for(i=0;i<120;i++); } } uchar Busy_Check() { uchar LCD_Status; RS = 0; RW = 1; EN = 1; Delayms(1); LCD_Status = P0; EN = 0; return LCD_Status; } void Write_LCD_Command(uchar cmd) { while((Busy_Check()&0x80)==0x80); RS = 0; RW = 0; EN = 0; P0 = cmd; EN = 1; Delayms(1); EN = 0; } void Write_LCD_Data(uchar dat) { while((Busy_Check()&0x80)==0x80); RS = 1; RW = 0; EN = 0; P0 = dat; EN = 1; Delayms(1); EN = 0; } void Initialize_LCD() { Write_LCD_Command(0x38); Delayms(1); Write_LCD_Command(0x01); Delayms(1); Write_LCD_Command(0x06); Delayms(1); Write_LCD_Command(0x0c); Delayms(1); } void ShowString(uchar x,uchar y,uchar *str) { uchar i = 0; if(y == 0) Write_LCD_Command(0x80 | x); if(y == 1) Write_LCD_Command(0xc0 | x); for(i=0;i<16;i++) { Write_LCD_Data(str[i]); } }