12864显示屏4*4键盘实验输出结果：获得键值通过发光二极管显示
#include <reg52.h>
unsigned char code IC_DAT[];
sbit RS=P3^6; //RS="H",表示DB7--DB0为显示数据,
//RS="L",表示DB7--DB0为显示指令数据
sbit WRD = P2^5; //R/W="H",E="H",数据被读到DB7--DB0
//R/W="L",E="H→L", DB7--DB0的数据被写到IR或DR
sbit E = P2^6; //使能信号
sbit PSB = P2^3; //H:并口方式 L:串口方式
void TransferData(char data1,bit DI); //传送数据或者地址命令(data),
//当DI=0是,传送命令,当DI=1,传送数据.
void display(void);
void display_grapic(void);
void delay1(unsigned int t);
void delay(unsigned int m);
void delayms(unsigned int n);
void DisplayLine(unsigned char line1,unsigned char line2);
void DisplayGraphic(unsigned char code *adder);
void LCD_mesg(unsigned char code *adder1);
Key_return(char keyvalue);
keysCAN();
/***************屏幕显示结果*********************/
unsigned char code IC_DAT[]={
"天华杯老师培训班"
"****** ******"
" 按键键值 "
"地点：35号楼 505"
};
unsigned char data1[]={"0123456789ABCDEF "};
/***************LCD字库初始化程序*********************/
void initinal(void)
{
delay(40); //大于40MS的延时程序
PSB=1; //设置为8BIT并口工作模式
delay(1); //延时
// RES=0; //复位
// delay(1); //延时
// RES=1; //复位置高
delay(10);
TransferData(0x30,0); //Extended Function Set :8BIT设置,RE=0: basic instruction set, G=0 :graphic display OFF
delay(100); //大于100uS的延时程序
TransferData(0x30,0); //Function Set
delay(37); ////大于37uS的延时程序
TransferData(0x08,0); //Display on Control
delay(100); //大于100uS的延时程序
TransferData(0x10,0); //Cursor Display Control光标设置
delay(100); //大于100uS的延时程序
TransferData(0x0C,0); //Display Control,D=1,显示开
delay(100); //大于100uS的延时程序
TransferData(0x01,0); //Display Clear 清屏
delay(10); //大于10mS的延时程序
TransferData(0x06,0); //Enry Mode Set,光标从右向左加1位移动
delay(100); //大于100uS的延时程序
}
//*************显示函数******************************
void lcd_mesg(unsigned char code *adder1)
{
unsigned char i;
TransferData(0x80,0); //Set Graphic Display RAM Address 传地址指令
delay(100);
for(i=0;i<32;i++)
{
TransferData(*adder1,1);
adder1++;
}
TransferData(0x90,0); //Set Graphic Display RAM Address
delay(100);
for(i=0;i<32;i++)
{
TransferData(*adder1,1);
adder1++;
}
}
//*************位置显示函数******************************
void lcd_wxs1(unsigned int adder2)
{
TransferData(0x8C,0); //Set Graphic Display RAM Address 传地址指令
delay(100);
