12864编程
clude "intrins.h"
sbit io_LCD12864_RS = P1^0 ;
sbit io_LCD12864_RW = P1^1 ;
sbit io_LCD12864_EN = P1^2 ;
#define io_LCD12864_DATAPORT P0
#define SET_DATA io_LCD12864_RS = 1 ;
#define SET_INC io_LCD12864_RS = 0 ;
#define SET_READ io_LCD12864_RW = 1 ;
#define SET_WRITE io_LCD12864_RW = 0 ;
#define SET_EN io_LCD12864_EN = 1 ;
#define CLR_EN io_LCD12864_EN = 0 ;
void v_Lcd12864CheckBusy_f( void ) //忙检测函数
{
unsigned int nTimeOut = 0 ;
SET_INC
SET_READ
CLR_EN
SET_EN
while( ( io_LCD12864_DATAPORT & 0x80 ) && ( ++nTimeOut != 0 ) ) ;
CLR_EN
SET_INC
SET_READ
}
void v_Lcd12864SendCmd_f( unsigned char byCmd ) //发送命令
{
v_Lcd12864CheckBusy_f() ;
SET_INC
SET_WRITE
CLR_EN
io_LCD12864_DATAPORT = byCmd ;
_nop_();
_nop_();
SET_EN
_nop_();
_nop_();
CLR_EN
SET_READ
SET_INC
}
void v_Lcd12864SendData_f( unsigned char byData ) //发送数据
{
v_Lcd12864CheckBusy_f() ;
SET_DATA
SET_WRITE
CLR_EN
io_LCD12864_DATAPORT = byData ;
_nop_();
_nop_();
SET_EN
_nop_();
_nop_();
CLR_EN
SET_READ
SET_INC
}
void v_DelayMs_f( unsigned int nDelay ) //延时
{
unsigned int i ;
for( ; nDelay > 0 ; nDelay-- )
{
for( i = 125 ; i > 0 ; i-- ) ;
}
}
void v_Lcd12864Init_f( void ) //初始化
{
v_Lcd12864SendCmd_f( 0x30 ) ; //基本指令集
v_DelayMs_f( 50 ) ;
v_Lcd12864SendCmd_f( 0x01 ) ; //清屏
v_DelayMs_f( 50 ) ;
v_Lcd12864SendCmd_f( 0x06 ) ; //光标右移
v_DelayMs_f( 50 ) ;
v_Lcd12864SendCmd_f( 0x0c ) ; //开显示
}
void v_Lcd12864SetAddress_f( unsigned char x, y ) //地址转换
{
unsigned char byAddress ;
switch( y )
{
case 0 : byAddress = 0x80 + x ;
break;
case 1 : byAddress = 0x90 + x ;
break ;
case 2 : byAddress = 0x88 + x ;
break ;
case 3 : byAddress = 0x98 + x ;
break ;
default :
break ;
}
v_Lcd12864SendCmd_f( byAddress ) ;
}
void v_Lcd12864PutString_f( unsigned char x, unsigned char y, unsigned char *pData )
{
v_Lcd12864SetAddress_f( x, y ) ;
while( *pData != '\0' )
{
v_Lcd12864SendData_f( *pData++ ) ;
}
}
void main( void )
{
v_Lcd12864Init_f() ;
v_Lcd12864PutString_f( 0,0, "快乐随行") ;
v_Lcd12864PutString_f( 2,1, "分都不给") ;
v_Lcd12864PutString_f( 0,2, "*LCD12864ST7920*") ;
v_Lcd12864PutString_f( 0,3, "辛苦回答了半天") ;
while( 1 ) ;
}
㈡ 单片机 12864液晶 我的8位数据线连接了P2.0-P2.5，和P1.2和P1.3，程序里怎么编程啊
这样接程序麻烦一些，执行效率也比较低，原来一条指令可以完成的操作现在需好多条指令才能实现
原来这条语句 LCD12864_DA_PORT＝DATE 要进行修改
如果P2.6-P2.7没有被占用,送数据时（变量名DATE)可以这样写
P2=DATE;
if(DATE&0x80) P1^3=1;
else P1^3=0;
if(DATE&0x40) P1^2=1;
else P1^2=0;
如果P2.6-P2.7已被占用,送数据时（变量名DATE)可以这样写 ：
temp1=0xc0&P2;/暂存P2高2位状态
P2=temp1|(0X3F&DATE);//取数据的低6位 加原来的高2位
if(DATE&0x80) P1^3=1;//取数据的第8位D7
else P1^3=0;
if(DATE&0x40) P1^2=1;//取数据的第7位D6
else P1^2=0;
以上是C语言程序，看起来不算长，但换成汇编语言又多了好几条指令，因此执行比较慢
㈢ 12864液晶不带字库的用C语言和51单片机编程
#include<reg51.h>
#include<absacc.h>
#define uchar unsigned char
#define datawr 0x1200 //写数据通道
#define comwr 0x1000 //写控制命令通道
#define datare 0x1300 //读数据通道
#define comre 0x1100 //读忙通道
uchar code disp_data[]={" 浙江大学 " //第一行，第一页
"04级通信工程一班" //第三行
" 宁波理工学院 " //第二行
" 竞赛小组 " //第四行
"128X64液晶显示器" //第一行，第二页
" 测试程序 " //第三行
" 07年07月25日 " //第二行
" Tornado "}; //第四行
void set12864();
void write_command(uchar command);
void write_page(uchar data_add);
void read_page(uchar data_add);
void delays(uchar cont);
void main()
{
while(1)
{
set12864(); //初始化12864
write_page(0); //写入一页数据
read_page(0x30); //读出一页数据到内部RAM
delays(2); //延时2s
write_page(64); //写入下一页数据
delays(2); //延时2s
}
}
//初始化12864子程序
void set12864()
{
write_command(0x30); //功能设定控制字
write_command(0x0c); //显示开关控制字
write_command(0x01); //清除屏幕控制字
write_command(0x06); //进入设定点控制字
}
//写控制命令子程序
void write_command(uchar command)
{
bit flag="1"; //12864空闲标志位
while(flag) //检查12864是否空闲
flag="XBYTE"[comre]&0x80;
XBYTE[comwr]=command; //空闲传送控制字
}
//写一页子程序
void write_page(uchar data_add)
{
bit flag="1"; //12864空闲标志位
uchar num="64"; //64个循环,连续写入32个汉字或是64个西文字符
write_command(0x80);
for(;num>0;num--)
{
while(flag) //检查12864是否空闲
flag="XBYTE"[comre]&0x80;
XBYTE[datawr]=disp_data[data_add++]; //空闲传送数据
}
}
//读一页子程序
void read_page(uchar data_add)
{
bit flag="1"; //12864空闲标志位
uchar num="64"; //64个循环,连续写入32个汉字或是64个西文字符
write_command(0x80);
for(;num>0;num--)
{
while(flag) //检查12864是否空闲
flag="XBYTE"[comre]&0x80;
DBYTE[data_add++]=XBYTE[datare]; //空闲传送数据
}
}
//延时cont秒子程序
void delays(uchar count)
{
unsigned char h,i,j,k;
do
{
for(h=5;h>0;h--)
for(i=4;i>0;i--)
for(j=116;j>0;j--)
for(k=214;k>0;k--);
}while(--count);
}
这是图象显示程序：
#include<reg51.h>
#include<absacc.h>
#define uchar unsigned char
#define uint unsigned int
#define datawr 0x1200 //写数据通道
#define comwr 0x1000 //写控制命令通道
#define datare 0x1300 //读数据通道
#define comre 0x1100 //读忙通道
uchar code disp_data[] = // 数据表
{
0x00,0x01,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,
0x00,0x01,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x80,0x00,0x00,0x00,0x00,
0x00,0x07,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC0,0x00,0x00,0x00,0x00,
0x00,0x07,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xE0,0x00,0x00,0x00,0x00,
0x00,0x0F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF0,0x00,0x00,0x00,0x00,
0x00,0x0F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF8,0x00,0x00,0x00,0x00,
0x00,0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0x00,0x00,0x00,0x00,
0x00,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0x80,0x00,0x00,0x00,
0x00,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x03,0xFF,0xFF,0xFF,
0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x07,0xFF,0xFF,
0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x80,0x00,0x0B,0xFF,
0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x80,0x00,0x00,0x1F,
0x01,0xFF,0xFF,0xFF,0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC0,0x00,0x00,0x00,
0x01,0xFF,0xFF,0xFF,0xF3,0x79,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC0,0x00,0x00,0x00,
0x03,0xFF,0xFF,0xFF,0xE6,0x62,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xE1,0x60,0x00,0x68,
0x01,0xFF,0xFF,0xFE,0x00,0x60,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xE1,0x00,0x00,0x0E,
0x01,0xFF,0xFF,0xF8,0x00,0x4B,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF0,0x8E,0x08,0x79,
0x07,0xFF,0xFF,0xF0,0x00,0x41,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xE6,0xC0,0x07,0x61,
0xC3,0xFF,0xFE,0xC0,0x00,0x00,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xED,0xEF,0x3F,
0x83,0xFF,0xFE,0x60,0x00,0x00,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xC0,0xFF,0xFD,0xFC,0x6C,0x00,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xF0,0x7F,0xF3,0xFF,0xFE,0x60,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xF3,0xFF,0xFF,0x50,0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,
0xFB,0xFF,0xF1,0xF8,0x8C,0xD8,0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFB,0x6F,0xD9,
0xC2,0x3F,0xF8,0x40,0x00,0x00,0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0xF6,0xDF,0x1E,0xFF,
0xFF,0x7F,0xFC,0x38,0x00,0x00,0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0x64,0x2F,0x6F,0xFF,
0xFD,0x7B,0xFC,0x1F,0xE0,0x00,0x1F,0xFF,0xFF,0xFF,0xFF,0xFF,0x5F,0x7C,0xEE,0xFF,
0xC7,0xFF,0xBC,0x0F,0xFF,0x00,0x03,0xFF,0xFF,0xFF,0xFF,0xFF,0xDF,0xFE,0xEF,0xFF,
0xFF,0xE7,0xDC,0x07,0xE7,0xF8,0x12,0x7F,0xFF,0xFF,0xFF,0xFF,0x47,0xFF,0xFF,0xFF,
0xFF,0xE7,0x80,0x03,0xF4,0x00,0x00,0x5F,0xFF,0xFF,0xFE,0xFE,0xE3,0xFF,0xFF,0xFF,
0xFF,0xFE,0xC0,0x01,0xC0,0x00,0x00,0x1B,0xFF,0xFF,0xFB,0xFF,0xFF,0xFF,0xFF,0xFF,
0x7F,0xEE,0xC0,0x00,0xC0,0x00,0x00,0x03,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFE,0x98,0x00,0x00,0x00,0x00,0x00,0x03,0xFF,0xFF,0xEF,0xFF,0xFF,0xFF,0xFF,0xFF,
0x20,0x0E,0x60,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0x8F,0xFF,0xFF,0xFF,0xFF,0xFF,
0x05,0x80,0xE0,0x00,0x00,0x00,0x00,0x01,0xFF,0xFD,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0x09,0x80,0xA0,0x00,0x00,0x00,0x00,0x01,0xFF,0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,
0x85,0x2A,0xC0,0x00,0x00,0x00,0x00,0x01,0xFF,0xFB,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,
0xBF,0xF3,0xC0,0x00,0x00,0x00,0x00,0x00,0xFF,0xF7,0xFF,0xFF,0xFF,0xFF,0xFF,0xF8,
0xFF,0xFF,0x80,0x00,0x00,0x00,0x00,0x01,0xFF,0xE0,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,
0xFF,0xFF,0x80,0x00,0x00,0x00,0x00,0x00,0xFF,0xC0,0xFF,0xFF,0xFF,0xFF,0xC0,0x1F,
0xFF,0xFF,0x80,0x00,0x40,0x00,0x00,0x00,0xFF,0x80,0xFF,0xFF,0xFF,0x80,0x07,0xFF,
0xFF,0xFF,0xC0,0x00,0xC0,0x00,0x00,0x01,0xFF,0x01,0xFF,0xFF,0xF8,0x00,0xFF,0xFF,
0xFF,0xFF,0xE0,0x63,0x80,0x00,0x00,0x01,0xFE,0x01,0xFF,0x18,0x00,0x3F,0xFF,0xFF,
0xFF,0xFF,0xFE,0x00,0x00,0x00,0x00,0x01,0xCC,0x01,0xFE,0x00,0x07,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFE,0x00,0x00,0x00,0x00,0x07,0xA0,0x03,0xFC,0x00,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFE,0x00,0x00,0x00,0x00,0x05,0xC0,0x03,0xC8,0x00,0x7F,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFE,0x00,0x00,0x00,0x00,0x19,0x00,0x00,0x88,0x0C,0x07,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFC,0x00,0x0C,0x00,0x00,0x00,0x00,0x01,0x00,0x01,0xC0,0x7F,0xFF,0xFF,
0xFF,0xFF,0xF8,0x07,0x0F,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x38,0x0F,0xFF,0xFE,
0xFF,0xFF,0xD0,0x07,0xFF,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x03,0xFF,0xF8,
0xFF,0xFC,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xFF,0xC0,
0xFF,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0xFF,0xF8,
0xFF,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x1F,0xFE,
0xFF,0xC0,0x00,0x00,0x00,0x00,0x00,0x78,0x02,0x00,0x00,0x00,0x00,0x00,0x0F,0xFF,
0xFF,0x00,0x00,0x00,0x00,0x00,0x03,0xF0,0x78,0x00,0x00,0x00,0x00,0x00,0x02,0xFF,
0xFE,0x00,0x00,0x00,0x00,0x00,0x1F,0xFF,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,
0xF0,0x00,0x00,0x00,0x00,0x00,0x7F,0xFF,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,
0xE0,0x00,0x00,0x00,0x00,0x00,0x3F,0xFF,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,
0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x27,
0xC0,0x00,0x00,0x00,0x00,0x00,0x01,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,
0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x80,0x00,0x00,0x00,0x00,0x00,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01
};
void set12864();
void setxy(uchar x,uchar y);
void write_command(uchar command);
void write_16byte(uint data_add);
void delays(uchar count);
void main()
{
uchar x,y,i;
while(1)
{
y="0x80"; //设置液晶上半部分坐标
x="0x80";
delays(2); //延时2s
set12864(); //初始化12864
delays(2);
for(i=0;i<32;i++) //写入液晶上半图象部分
{ //写入坐标
setxy(x,y);
write_16byte(i*16); //连续写入16字节数据
y++; //y轴地址加1
}
y="0x80"; //设置液晶下半部分坐标
x="0x88";
for(i=0;i<32;i++) //写入液晶下半图象部分
{
setxy(x,y); //写入坐标
write_16byte((32+i)*16);//连续写入16字节数据
y++; //y轴地址加1
}
write_command(0x34); //写入扩充指令命令
write_command(0x36); //显示图象
}
}
//初始化12864子程序
void set12864()
{
write_command(0x30); //功能设定控制字
write_command(0x0c); //显示开关控制字
write_command(0x01); //清除屏幕控制字
write_command(0x06); //进入设定点控制字
}
//设置绘图坐标
void setxy(uchar x,uchar y)
{
write_command(0x34); //写入扩充指令命令
write_command(y); //写入y轴坐标
write_command(x); //写入x轴坐标
write_command(0x30); //写入基本指令命令
}
//写控制命令子程序
void write_command(uchar command)
{
bit flag="1"; //12864空闲标志位
while(flag) //检查12864是否空闲
flag="XBYTE"[comre]&0x80;
XBYTE[comwr]=command; //空闲传送控制字
}
void write_16byte(uint data_add)
{
bit flag="1"; //12864空闲标志位
uchar num="16"; //16个循环,连续写入16个字节
for(;num>0;num--)
{
while(flag) //检查12864是否空闲
flag="XBYTE"[comre]&0x80;
XBYTE[datawr]=disp_data[data_add++]; //空闲传送数据
}
}
//延时count秒子程序
void delays(uchar count)
{
unsigned char h,i,j,k;
do
{
for(h=5;h>0;h--)
for(i=4;i>0;i--)
for(j=116;j>0;j--)
for(k=214;k>0;k--);
}while(--count);
}
㈣ keil中12864编程
这样的函数要自己编的，就是所谓的驱动，keil连数码管的驱动都没有怎么会有12864的驱动呢，主要原因就是因为这样程序是和硬件连接有很大关系的，比如说你数据口用的P0，别人用的P1，你P0.0连的数据口0，别人就连到数据口1这样的程序根本没办法统一，所以keil不提供硬件的驱动函数
㈤ 驰宇微12864液晶屏怎样编程实现任意位置显示字和图形
驰宇微12864液晶屏带字库的LCD模块不需要取字模，只需要向LCD模块写入需要显示的汉字的GB2312代码就可以了，显示位置可用模块手册中的定位指令代码设置，切换到点阵图形模式，并设置好书写规律，在字模相应位置写入对应字模数据就可以了，比如16*16点阵，定义第一组两个8字节数据的起始位置，连续列入两字节，然后定位下一行起始地址，再写，重复上述过程直到写完一个字的全部16行，原理都是一样的，具体命令与实现方法或有不同。
㈥ 单片机 12864 液晶，C语言基本编程完美讲解[跪求]!!!
12864基本上都有八位的地址/数据线，和一些使能、R\W、片选、屏幕负压什么的引脚构成，编程基本思路就是先给送八位地址，在发八位数据，根据你的datasheet里的控制字资料（就是那个好多的表）往里依次写初始化命令，设置显示位置等，然后发数据就行了。。只能这么讲了，你C语言要是基础过关很容易看懂。。