1602lcd_show(keil代码+proteus仿真文件).rar

#include<reg52.h> #define uint unsigned int #define uchar unsigned char sbit rs= P2^0; //0输入指令，1输入数据 sbit rw = P2^1; //0向lcd写入指令或者数据，1从lcd读取信息 sbit en= P2^2; //1时读取信息，下降沿执行指令 sbit key1 = P2^4; sbit key2 = P2^5; sbit key3 = P2^6; sbit key4 = P2^7; uchar code table2[]={0x0f,0x09,0x0f,0x09,0x0f,0x09,0x13,0x00, 0x1f,0x11,0x11,0x1f,0x11,0x11,0x1f,0x00};//月，日 uchar code table3[]={0x00,0x00,0x00,0x02,0x02,0x02,0x02,0x02, 0x00,0x00,0x00,0x08,0x08,0x08,0x08,0x08, 0x1f,0x07,0x0a,0x12,0x02,0x02,0x02,0x02, 0x1f,0x1c,0x0a,0x09,0x08,0x08,0x08,0x08};//林 uchar code table4[]={0x0a,0x1f,0x0a,0x0e,0x0a,0x0e,0x1f,0x1f, 0x00,0x09,0x05,0x09,0x05,0x01,0x1f,0x1f, 0x16,0x16,0x19,0x10,0x1f,0x00,0x00,0x00, 0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x00};//斟 uchar code table5[]={ 0x04,0x16,0x0d,0x04,0x14,0x0f,0x04,0x00, 0x11,0x15,0x19,0x11,0x11,0x1d,0x11,0x00, 0x04,0x05,0x0e,0x14,0x04,0x04,0x00,0x00, 0x11,0x1b,0x15,0x11,0x11,0x11,0x00,0x00};//渊 unsigned char code dis1[] = {"electrical"}; unsigned char code dis2[] = {"engineering"}; unsigned char code dis3[] = {"201736110116"}; void delay(uint n) //延时函数 { uint x,y; for(x=n;x>0;x--) for(y=110;y>0;y--); } void lcd_wcom(uchar com) //指令写入函数 { rs=0; //输入指令 rw=0; P0=com; delay(5); en=1; en=0; } void lcd_wdat(uchar dat) //数据写入函数 { rs=1; //输入数据 rw=0; P0=dat; delay(5); en=1; en=0; } void lcd_init() //1602lcd初始化函数 { lcd_wcom(0x38); //功能设定指令：1.数据总线8位 2.显示两行 3. 5*8总线字符 lcd_wcom(0x0c); //控制整体显示并且关闭光标 lcd_wcom(0x06); //屏幕上的文字左移或者右移无效 lcd_wcom(0x01); //清显示，光标复位到地址00H位置 } void main() { char m,i,j,k=0; lcd_init(); //初始化lcd //日期显示 while(key1==0&&key2==1&&key3==1&&key4==1) //如果key1按下 { lcd_wcom(0x40); //设定CGRAM地址 for(m=0;m<16;m++) //将字符“日，月”代码写入CGRAM中 { lcd_wdat(table2[m]); } lcd_wcom(0x86);//指定显示位置 lcd_wdat(0x33);//3 lcd_wcom(0x87); //指定显示位置 lcd_wdat(0); //月 lcd_wcom(0x88);//指定显示位置 lcd_wdat(0x31);//1 lcd_wcom(0x89);//指定显示位置 lcd_wdat(0x38);//8 lcd_wcom(0x8a);//指定显示位置 lcd_wdat(1); //日 if(key1==1&&key2==1&&key3==1&&key4==1) break; } //专业显示 while(key1==1&&key2==0&&key3==1&&key4==1) { lcd_wcom(0x80); while(dis1[i] != '\0') { lcd_wdat(dis1[i]); i++; } lcd_wcom(0xc0); while(dis2[j] != '\0') { lcd_wdat(dis2[j]); j++; } if(key1==1&&key2==1&&key3==1&&key4==1) break; } //学号显示 while(key1==1&&key2==1&&key3==0&&key4==1) { lcd_wcom(0x80); while(dis3[k] != '\0') { lcd_wdat(dis3[k]); k++; } if(key1==1&&key2==1&&key3==1&&key4==1) break; } //姓名显示 while(key1==1&&key2==1&&key3==1&&key4==0) //如果key4按下 { while(1){ lcd_wcom(0x40); //设定CGRAM地址 for(m=0;m<32;m++) { lcd_wdat(table3[m]); } //显示“林” lcd_wcom(0x83); lcd_wdat(0); lcd_wcom(0x84); lcd_wdat(1); lcd_wcom(0xc3); lcd_wdat(2); lcd_wcom(0xc4); lcd_wdat(3); delay(500); //在原来显示“林”的位置用空字符代替，下面同理 lcd_wcom(0x83); lcd_wdat(0x20); lcd_wcom(0x84); lcd_wdat(0x20); lcd_wcom(0xc3); lcd_wdat(0x20); lcd_wcom(0xc4); lcd_wdat(0x20); lcd_wcom(0x40); for(m=0;m<32;m++) { lcd_wdat(table4[m]); } lcd_wcom(0x86); lcd_wdat(0); lcd_wcom(0x87); lcd_wdat(1); lcd_wcom(0xc6); lcd_wdat(2); lcd_wcom(0xc7); lcd_wdat(3); delay(500); lcd_wcom(0x86); lcd_wdat(0x20); lcd_wcom(0x87); lcd_wdat(0x20); lcd_wcom(0xc6); lcd_wdat(0x20); lcd_wcom(0xc7); lcd_wdat(0x20); lcd_wcom(0x40); for(m=0;m<32;m++) { lcd_wdat(table5[m]); } lcd_wcom(0x89); lcd_wdat(0); lcd_wcom(0x8a); lcd_wdat(1); lcd_wcom(0xc9); lcd_wdat(2); lcd_wcom(0xca); lcd_wdat(3); delay(500); lcd_wcom(0x89); lcd_wdat(0x20); lcd_wcom(0x8a); lcd_wdat(0x20); lcd_wcom(0xc9); lcd_wdat(0x20); lcd_wcom(0xca); lcd_wdat(0x20); if(key1==1&&key2==1&&key3==1&&key4==1) break; } break; } }