液晶1602显示矩阵键盘(共3页).doc

精选优质文档-倾情为你奉上#include#include#define uchar unsigned char#define uint unsigned intsbit lcd_RS=P25;sbit lcd_RW=P26;sbit lcd_en=P27;void delay(uint z) uint i,j; for(i=0;i200;i+) for(j=0;jz;j+);*名称:write_command(uchar com)*功能:1602命令函数*输入:输入的命令值*输出:无void write_command(uchar com) /*LCD写命令*/ lcd_RS=0; lcd_RW=0; P0=com; delay(5); lcd_en=1; delay(5); lcd_en=0;void lcd_init() /*LCD