📄 lcd1.c
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//实验目的：熟悉12864LCD的使用
//12864LCD带中文字库
//编程让12864LCD显示一幅毛主席头像
//硬件设置：
//关断所有拨码开关。
#include<pic.h>
__CONFIG(0x1832);
//芯片配置字，看门狗关，上电延时开，掉电检测关，低压编程关，加密，4M晶体HS振荡
#define rs RA5 //命令/数据选择
#define rw RA4 //读/写选择
#define e RA3 //使能
#define psb RA2 //8位/4位并口选择
#define rst RA0 //复位
#define nop() asm("nop")
const unsigned char TAB1[ ]={ //定义显示图片的数据表
0X1F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XC0,0X00,0X00,
0X18,0XFC,0XB7,0X80,0X00,0X00,0X00,0X00,0X00,0X00,0X03,0XFF,0XFF,0XE0,0X00,0X00,
0X1E,0X7F,0X0C,0X00,0X00,0X07,0XFF,0XFF,0X80,0X00,0X0F,0XF8,0X7F,0XE0,0X03,0XC0,
0X1F,0XE7,0X80,0X00,0X00,0X7F,0XFF,0XFF,0XC0,0X00,0X7F,0XE1,0XFF,0XE0,0X0C,0X60,
0X1F,0X9B,0XE0,0X00,0X01,0XFF,0XFF,0XFF,0XF0,0X01,0X80,0X07,0XFF,0XE0,0X0C,0X60,
0X1F,0XCF,0XE0,0X00,0X1F,0XFF,0XFF,0XFF,0XF8,0X01,0X00,0X1F,0XFF,0XE0,0X0C,0X60,
0X13,0XE4,0XF0,0X00,0X7F,0XFF,0XFF,0XFF,0XFE,0X00,0X00,0XFF,0X0E,0X20,0X0C,0X60,
0X10,0XF0,0XF0,0X00,0XFF,0XFE,0XFF,0XFF,0XFF,0X00,0X00,0XF8,0X0E,0X20,0X0C,0X60,
0X1C,0X7C,0X38,0X01,0XEF,0XF4,0X0F,0XFF,0XFF,0X80,0X00,0X00,0X7F,0XE0,0X0C,0X60,
0X1F,0X1E,0X08,0X03,0X9F,0XC0,0X00,0XFE,0XFF,0XC0,0X00,0X07,0XFF,0XE0,0X0D,0X60,
0X1F,0X03,0X80,0X07,0X27,0X80,0X00,0X3F,0X3F,0XE0,0X00,0X7F,0XFF,0XE0,0X0D,0XE0,
0X1E,0XE0,0XC0,0X06,0X4F,0X00,0X00,0X3F,0XBF,0XF0,0X00,0XFE,0X1C,0X20,0X07,0XC0,
0X1F,0XF0,0X20,0X0E,0X4E,0X00,0X00,0X1F,0XCF,0XF8,0X00,0X00,0X7F,0XA0,0X00,0XC0,
0X1F,0XFE,0X00,0X0C,0X9C,0X00,0X00,0X0F,0XFF,0XF8,0X00,0X00,0X7F,0XE0,0X00,0XE0,
0X1F,0XFF,0X80,0X1D,0XF8,0X00,0X00,0X0F,0XF3,0XFC,0X00,0X3F,0X8E,0XE0,0X00,0X00,
0X1E,0X03,0X00,0X1F,0X78,0X00,0X00,0X07,0XC7,0XFC,0X00,0X0F,0X7F,0XA0,0X00,0X00,
0X1F,0X80,0X00,0X1B,0XF0,0X00,0X00,0X09,0XCF,0XFC,0X00,0X00,0X0F,0XE0,0X0F,0X00,
0X1F,0XFE,0X00,0X19,0XF0,0X00,0X00,0X07,0XC9,0XFE,0X00,0X07,0X1F,0XE0,0X06,0X00,
0X1F,0XFF,0XC0,0X0F,0XE0,0X00,0X00,0X03,0XC1,0XFE,0X00,0XFF,0XFF,0XE0,0X06,0X00,
0X1F,0XC0,0X40,0X0F,0XC0,0X00,0X00,0X03,0XE7,0XFE,0X00,0X9F,0XFF,0X20,0X06,0X00,
0X1F,0X00,0X00,0X0F,0XC0,0X00,0X00,0X07,0XE7,0XFC,0X00,0X0B,0XCF,0X20,0X06,0X00,
0X1F,0X78,0X00,0X0F,0XC0,0X00,0X00,0X07,0XE7,0XFC,0X00,0X00,0X0F,0XE0,0X06,0X00,
0X1F,0XFF,0X80,0X07,0XF0,0X00,0X00,0X03,0XEF,0XFC,0X00,0X00,0X3F,0XE0,0X06,0X00,
0X13,0XFF,0XE0,0X07,0XFE,0X01,0XE0,0X01,0XCF,0XFC,0X00,0X00,0X3F,0XE0,0X06,0X60,
0X1F,0XFC,0X00,0X07,0XE3,0X03,0XF8,0X06,0XDF,0XFC,0X00,0X1F,0XFE,0X60,0X06,0X60,
0X1F,0X80,0X00,0X03,0X80,0X80,0XC0,0X01,0XFF,0XF8,0X00,0X0F,0X3F,0XE0,0X0F,0XE0,
0X1C,0X00,0X00,0X01,0X80,0X41,0XC0,0X06,0XFF,0XF8,0X00,0X00,0XF3,0XE0,0X00,0X00,
0X13,0XFC,0X00,0X03,0XFC,0X41,0XFC,0X03,0X7F,0XF0,0X00,0X00,0X0F,0XE0,0X00,0X00,
0X1F,0XFF,0X00,0X03,0XFE,0X40,0XFF,0X00,0XFF,0XF0,0X00,0X07,0XFF,0XE0,0X07,0XC0,
0X1F,0XC0,0X00,0X02,0XF0,0X40,0XE1,0X00,0X78,0XF0,0X00,0X3C,0XFC,0X20,0X0C,0X60,
0X1E,0X00,0X00,0X02,0XC0,0XC0,0X60,0X00,0XF3,0X70,0X00,0X03,0XFF,0XE0,0X00,0X60,
0X10,0X00,0X00,0X02,0X00,0X80,0X60,0X00,0X67,0X30,0X00,0X00,0X7F,0XE0,0X00,0XC0,
0X17,0XFF,0X00,0X03,0X01,0X80,0X30,0X00,0XFC,0XB0,0X00,0X3F,0XCF,0XE0,0X01,0X80,
0X1F,0XFA,0X00,0X03,0X03,0X80,0X18,0X01,0XFC,0X70,0X00,0X3C,0X8F,0XE0,0X03,0X00,
0X1F,0XB0,0X00,0X03,0X0F,0X00,0X0C,0X02,0XFE,0X30,0X00,0X0D,0X3F,0X60,0X06,0X00,
0X1F,0X00,0X00,0X03,0X0F,0X00,0X04,0X05,0XEE,0X30,0X00,0X03,0XDF,0X20,0X0C,0X00,
0X1C,0X00,0X00,0X02,0X01,0X06,0X00,0X07,0XE3,0X30,0X01,0X00,0XDF,0XE0,0X0C,0X60,
0X10,0X1E,0X00,0X03,0X03,0X03,0X80,0X07,0XF1,0X30,0X00,0XE0,0X33,0XE0,0X0F,0XE0,
0X1F,0XEC,0X00,0X02,0X03,0X01,0XE0,0X09,0XF0,0X60,0X00,0X3C,0X8E,0X60,0X00,0X00,
0X1F,0X30,0X00,0X03,0X03,0X9D,0X30,0X13,0XFC,0X60,0X00,0X1F,0X3F,0XA0,0X00,0X00,
0X1F,0XC1,0X8C,0X02,0X81,0XF3,0X10,0X0F,0XF0,0XC0,0X03,0X87,0XC7,0XE0,0X03,0X80,
0X1A,0X06,0X30,0X03,0X03,0X80,0X08,0X13,0XE0,0XC0,0X00,0XE3,0XF1,0XE0,0X06,0XC0,
0X1C,0X1C,0X40,0X01,0X82,0X00,0X04,0X0F,0XE1,0X80,0X00,0X78,0XFE,0X60,0X0C,0X60,
0X13,0XF8,0X80,0X01,0X46,0X00,0X00,0X07,0XE3,0X00,0X00,0X3E,0X7F,0XE0,0X0C,0X60,
0X1F,0X63,0X00,0X01,0X8C,0X00,0X00,0X07,0XFE,0X00,0X00,0X0F,0X9F,0XE0,0X0D,0X60,
0X1F,0X8E,0X04,0X01,0X47,0XEE,0X00,0X07,0XFE,0X00,0X00,0X87,0XEF,0XE0,0X0D,0X60,
0X1E,0X3C,0X1C,0X00,0XA7,0XFF,0X8C,0X03,0XF8,0X00,0X00,0XC1,0XFF,0XE0,0X0C,0X60,
0X1F,0X78,0X38,0X00,0XC3,0X93,0X8E,0X07,0XF0,0X00,0X00,0X78,0X7F,0XE0,0X0C,0X60,
0X1F,0XF1,0X60,0X00,0XE3,0X80,0X06,0X07,0XF0,0X00,0X00,0X3A,0X1F,0XE0,0X06,0XC0,
0X1F,0XE1,0X40,0X00,0X13,0XC8,0X00,0X0B,0XF0,0X00,0X00,0X1E,0X13,0XE0,0X03,0X80,
0X17,0X8F,0X84,0X00,0X61,0XF8,0X00,0X17,0XF0,0X00,0X00,0X0F,0XB0,0XE0,0X00,0X00,
0X1F,0X1E,0X29,0X80,0X33,0X00,0X00,0X0F,0XFC,0X00,0X00,0X43,0XFD,0X60,0X00,0X00,
0X1E,0X7C,0X73,0X00,0X3A,0X10,0X00,0X0F,0XF4,0X00,0X00,0X21,0XFF,0XA0,0X03,0X80,
0X15,0XF8,0XE3,0X00,0X1E,0X18,0X00,0X1F,0XF6,0X00,0X00,0X18,0XFF,0XE0,0X06,0XC0,
0X1B,0XE1,0X86,0X00,0X1E,0X00,0X00,0X3F,0XE6,0X00,0X03,0X0E,0X7F,0XE0,0X0C,0X60,
0X1F,0XC7,0X8C,0X00,0X1E,0X00,0X00,0X7F,0XE7,0X00,0X03,0X85,0X1B,0XE0,0X0C,0X60,
0X1F,0X0F,0X39,0X20,0X07,0X00,0X01,0XFF,0XCF,0X00,0X01,0XC3,0XCD,0XE0,0X0D,0X60,
0X1E,0X3E,0X73,0X40,0X03,0X80,0X0F,0XFF,0X9F,0X80,0X00,0XF1,0XF0,0X60,0X0D,0X60,
0X18,0X7C,0XF6,0X20,0X01,0XE0,0X3F,0XFE,0X3F,0XE0,0X00,0X78,0XFE,0X60,0X0C,0X60,
0X11,0XFB,0XE6,0X40,0X01,0XFF,0XFF,0XFC,0X7F,0XFC,0X08,0X3C,0X7F,0XE0,0X0C,0X60,
0X1F,0XF7,0XFE,0X40,0X02,0XFF,0XFF,0XF9,0XFF,0XFF,0X00,0X0F,0X3F,0XE0,0X06,0XC0,
0X1F,0XFF,0XFC,0X88,0X06,0XFF,0XFD,0XF3,0XFF,0XFF,0XC1,0X8F,0X9F,0XE0,0X03,0X80,
0X1F,0XFF,0XB9,0X38,0X0E,0XFE,0X71,0XE7,0XFF,0XFF,0XE8,0XC3,0XEF,0XE0,0X00,0X00,
0X0F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XC0,0X00,0X00,
};
unsigned int lcd_x; //X地址
unsigned int lcd_y; //Y地址
bit busy; //忙标志位
void init(); //系统初始函数
void lcd_init(); //LCD初始函数
void clear_p(); //清屏函数
void han_wr2a(); //写函数
void wr_zb(); //写准备函数
void qushu(); //查表函数
void send_d(unsigned char x); //写一字节数据函数
void send_i(unsigned char x); //写一字节命令函数
void chk_busy(); //查LCD忙函数
void delay();
//-------------------------------------------
void main()
{
init(); //系统初始化
lcd_init(); //LCD初始化
clear_p(); //清除显示
han_wr2a(); //写数据到LCD显示
while(1); //停机
}
//-------------------------------------------
void init()
{
TRISA=0X00; //设置A口为输出
TRISD=0X00; //设置D口为输出
ADCON1=0X06; //设置A口为普通IO口
}
//-------------------------------------------
void lcd_init()
{
rst=0; //复位LCD
delay();
rst=1; //LCD正常工作
nop();
psb=1; //8位并行通信
send_i(0x30); //基本操作指令
send_i(0x01); //关显示
send_i(0x06); //指定在写入或读取时，光标的移动方向
send_i(0x0c); //开显示，关光标，不闪烁
}
//-------------------------------------------
void han_wr2a()
{
qushu(); //查表取数送显示
}
//-------------------------------------------
void wr_zb()
{
send_i(0x34); //扩展操作指令
send_i(lcd_y); //设置Y地址
send_i(lcd_x); //设置X地址
send_i(0x30); //基本操作指令
}
//-------------------------------------------
void clear_p()
{
send_i(0x1); //清除显示
send_i(0x34); //扩展操作指令
send_i(0x30); //基本操作指令
}
//------------------------------------------
void qushu()
{
int i,j,k,temp,temp1; //定义临时变量
temp=0; //查表偏移地址
lcd_x=0x80; //上半屏X地址80H
for(i=2;i>0;i--) //共两屏
{
lcd_y=0x80; //每一行的Y地址80H（即顶格显示）
for(j=0x20;j>0;j--) //每半屏共20H行
{
wr_zb(); //写准备（设置X地址和Y地址）
for(k=0x10;k>0;k--) //每一行16字节（因为顶格写）
{
temp1=TAB1[temp]; //查表获取显示数字
send_d(temp1); //送LCD显示
temp++; //查表偏移地址+1
}
lcd_y++; //送下一行数据
send_i(0x36); //扩展指令操作：图形显示开
send_i(0x30); //基本指令操作
}
// send_i(0x36);
// send_i(0x30);
lcd_x=0X88; //下半屏X地址
}
}
//-------------------------------------------
void send_d(unsigned char x)
{
chk_busy(); //判断LCD是否忙
rs=1; //总线上是数据
rw=0; //写操作
PORTD=x; //数据送总线
e=1; //使能
nop();
nop();
nop();
e=0;
}
//--------------------------------------------
void send_i(unsigned char x)
{
chk_busy(); //判断忙信号
rs=0; //总线上是命令
rw=0; //写操作
PORTD=x; //数据送总线
e=1; //使能
nop();
nop();
nop();
e=0;
}
//-------------------------------------------
void chk_busy()
{
busy=1; //先置忙信号
TRISD=0XFF; //更改总线方向为输入
rs=0; //总线上为命令
rw=1; //读操作
while(busy)
{
nop();
nop();
nop();
e=1;
nop();
nop();
nop();
if(!RD7) busy=0; //RD7为0表示LCD空闲
nop();
nop();
nop();
e=0;
}
e=0;
TRISD=0X00; //总线还原为输出
}
//-------------------------------------------
void delay()
{
int i;
for(i=0;i<5000;i++)
{;}
}
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