最新12864LCD菜单程序

12864使用说明一、串/并接口1.1 串口接口管脚信号*注释1：如在实际应用中仅使用并口通讯模式，可将PSB 接固定高电平。

*注释2：模块内部接有上电复位电路，因此在不需要经常复位的场合可将该端悬空。

*注释3：如背光和模块共用一个电源，可以将模块上的JA、JK 用焊锡短接。

1.2 并行接口管脚信号*注释1：如在实际应用中仅使用并口通讯模式，可将PSB 接固定高电平。

*注释2：模块内部接有上电复位电路，因此在不需要经常复位的场合可将该端悬空。

*注释3：如背光和模块共用一个电源，可以将模块上的JA、JK 用焊锡短接。

二、模块主要硬件构成说明控制器接口信号说明：2.1、RS，R/W的配合选择决定控制界面的4种模式：2.2、E信号●忙标志BFBF 标志提供内部工作情况.BF=1 表示模块在进行内部操作,此时模块不接受外部指令和数据.BF=0 时, 模块为准备状态,随时可接受外部指令和数据.利用STATUS RD 指令,可以将BF 读到DB7 总线,从而检验模块之工作状态.●字型产生ROM（CGROM）字型产生ROM（CGROM）提供8192 个此触发器是用于模块屏幕显示开和关的控制。

DFF=1 为开显示（DISPLAY ON),DDRAM 的内容就显示在屏幕上，DFF=0 为关显示（DISPLAY OFF)。

DFF 的状态是指令DISPLAY ON/OFF 和RST 信号控制的。

●显示数据RAM（DDRAM）模块内部显示数据 RAM 提供 64×2 个位元组的空间，最多可控制 4 行 16 字（64 个字）的中文字型显示，当写入显示数据 RAM 时，可分别显示 CGROM 与CGRAM 的字型；此模块可显示三种字型，分别是半角英、数字型(16*8)、CGRAM 字型及 CGROM 的中文字型。

三种字型的选择，由在 DDRAM 中写入的编码选择，在0000H—0006H 的编码中（其代码分别是0000、0002、0004、0006 共4 个）将选择 CGRAM 的自定义字型，02H—7FH 的编码中将选择半角英数字的字型，至于A1 以上的编码将自动的结合下一个位元组，组成两个位元组的编码形成中文字型的编码BIG5（A140—D75F），GB（A1A0-F7FFH）。

/*12864并行接口参考程序，控制器st7920*/#include <reg51.h>#include <intrins.h>#define uchar unsigned charsbit RES = P0^7;sbit PSB = P0^6; //串并口选择sbit E = P0^5;sbit RW = P0^4;sbit RS = P0^3;uchar h,l,ii;//延时子程序void delay(unsigned int t) //t=10,约1ms { unsigned int i,j;for(i=0;i<t;i++)for(j=0;j<10;j++);}//测忙void chk_busy(){ RS=0;RW=1;E=1;while((P2&0x80)==0x80);E=0;}//写数据void lcdwd(unsigned char dispdata){ chk_busy();RS=1;RW=0;E=1;P2=dispdata;delay(5);E=0;}//写指令代码void lcdwc(unsigned char cmdcode){ chk_busy();RS=0;RW=0;E=1;P2=cmdcode;delay(5);E=0;}//初始化void lcdreset(){ delay(2000);lcdwc(0x30); //选择基本指令集lcdwc(0x30); //选择8bit数据流delay(5);lcdwc(0x0c); //开显示(有游标、不反白)delay(5);lcdwc(0x01); //清除显示，并且设定地址指针为00Hdelay(5);lcdwc(0x07); //指定在资料的读取及写入时，设定游标的移动方向及指定显示的移位}void hzkdis(unsigned char code *s){ while(*s>0){ lcdwd(*s);s++;delay(500);}}void hzklib(){lcdwc(0x80);hzkdis("桂林电子科技大学");lcdwc(0x91);hzkdis("0900840115");lcdwc(0x8a);hzkdis("hyg");lcdwc(0x9b);hzkdis("男");}void lcdfill(unsigned char disdata) //纵条纹显示{ unsigned char x,y,ii;for(ii=0;ii<9;ii+=8) //ii作用:地址0x80为前32行的列首地址,0x88为后32行的列首地址for(y=0;y<0x20;y++)for(x=0;x<8;x++){ lcdwc(0x36); //8bit控制界面，扩充指令集，绘图开lcdwc(y+0x80); //第一写的为行地址，y为1bitlcdwc(x+0x80+ii); //后写的为列地址，x为1字节lcdwc(0x30); //8bit 控制界面，基本指令集，绘图关lcdwd(disdata);lcdwd(disdata);}}void lcdfill_upright(unsigned char disdata) //横条{ unsigned char x,y,ii;unsigned char i,f,k;for(ii=0;ii<9;ii+=8)for(y=0;y<4;y++){ f=disdata;for(i=0;i<8;i++){ if((f&0x80)==0x80)k=0xff;elsek=0;for(x=0;x<8;x++){ lcdwc(0x36);lcdwc(y*8+i+0x80);lcdwc(x+0x80+ii);lcdwc(0x30);lcdwd(k);lcdwd(k);}f<<=1;}}}main(){delay(10);RES=1;PSB=1;lcdreset(); //初始化LCD屏while(1){lcdwc(0x01);delay(500);lcdfill(0x80); //纵条纹显示delay(5000);lcdfill_upright(0x20); //横条delay(5000);lcdfill(0x00);hzklib();delay(10000);}}。

128X64液晶屏参数设置及显示程序（未完待续）;****************************************************************************** **/RS EQU P2.0RW EQU P2.1E EQU P2.2PSB EQU P2.3RST EQU P2.5;-----------------------------------------------LCD_X EQU 30HLCD_Y EQU 31HCOUNT EQU 32HCOUNT1 EQU 33HCOUNT2 EQU 34HCOUNT3 EQU 35H;-----------------------------------------------LCD_DATA EQU 36HLCD_DATA1 EQU 37HLCD_DATA2 EQU 38HSTORE EQU 39H;-----------------------------------------------ORG 0000HLJMP MAINORG 0100H;-----------------------------------------------MAIN:MOV SP,#5FHCLR RST ;复位LCALL DELAY4 ;延时子程序SETB RST ;复位NOPSETB PSB ;通讯方式为8位数据并口;********************初始化**********************LGS0: MOV A,#34H ;34H--扩充指令操作LCALL SEND_I ;写指令子程序MOV A,#30H ;30H--基本指令操作LCALL SEND_IMOV A,#01H ;清除显示LCALL SEND_IMOV A,#06H ;指定在资料写入或读取时，光标的移动方向LCALL SEND_I ;DDRAM 的地址计数器(AC)加1MOV A,#0CH ;开显示,关光标,不闪烁LCALL SEND_I;================================================= ;;显示汉字和字符;加入80ms的延时，使你能够看清楚显示的过程;根据汉字显示坐标分段写入（顺序写入）;================================================= HAN_WR2:LCALL CLEAR_PHAN_WR2A:MOV DPTR,#TAB1A ;显示汉字和字符MOV COUNT,#10H ;地址计数器设为16。

/*************menu.h*******************/#ifndef __MENU_H#define __MENU_H#include "stm32f10x.h"#include "SysTick.h"#include <stdlib.h>#include "12864.h"#include "AdcDisplay.h"#include "key.h"#include "spi_tm7705.h"#include "eeprom.h"typedef struct menu//定义一个菜单{u8 range_from,range_to; //当前显示的项开始及结束序号u8 itemCount;//项目总数u8 selected;//当前选择项u8 *menuItems[17];//菜单项目struct menu **subMenus;//子菜单struct menu *parent;//上级菜单,如果是顶级则为null void (**func)();//选择相应项按确定键后执行的函数}Menu;void MainDisplay(void);void DisplayMenu(u8 line);void func(void);void Unitch1(void);void Unitch2(void);void Unitch3(void);void Unitch4(void);void DiaChange(void);void MlChange(void);u16 NumLoop(u16 num,u8 pm);u8 Change(u8 Sval,uint8_t* title);void MenuInit(void);#endif /* __MENU_H *//*************menu.h*******************//************menu.c*******************//******************** ********************* 文件名：menu.c* 描述：液晶菜单函数库* 实验平台：* 硬件连接----------------------------**** ----------------------------* 库版本：ST3.0.0******************************************************************************** ***/#include "menu.h"//菜单与AD结果显示变量，0为AD，1为菜单extern u8 MenuDis=0;//typedef struct menu//定义一个菜单//{// u8 range_from,range_to; //当前显示的项开始及结束序号// u8 itemCount;//项目总数// u8 selected;//当前选择项// u8 *menuItems[17];//菜单项目// struct menu **subMenus;//子菜单// struct menu *parent;//上级菜单,如果是顶级则为null// void (**func)();//选择相应项按确定键后执行的函数////}Menu;Menu MainMenu = { //定义主菜单0,3,4,0,//默认显示0-3项，总共4项，当前选择第0项{"单位设置\x10","直径设置\x10","模量设置\x10","关于"}};Menu UnitMenu = {//单位设置菜单0,3,4,0,{"应变量ε","锁模力KN ","锁模力Ton","取消"}};u8 UnitCh;//单位选择，0为变形量ε，1为应变量σ，2为锁模力FMenu DiaMenu = {//单位设置菜单0,0,1,0,{"主999 mm"}};Menu MlMenu = {//模量设置菜单0,0,1,0,{"主999 KN/mm2"}};u8 DiaVal;//直径数值u8 MlVal;//模量数值//菜单与AD结果显示变量，0为AD，1为菜单u8 MenuDis;//复位前指数u16 BaseAD[4];//横截面积u16 mianji;//横截直径u16 zhijing;//模量u16 moliang;//按键返回值u8 keyval;uint8_t* title1="单位：MM";uint8_t* title2="单位：KN/MM2";extern u16 ADResult[4];//存储AD结果的数组extern uint16_t VirtAddVarTab[NumbOfVar];//eepromMenu *currentMenu;//当前的菜单void MainDisplay(void){if (MenuDis==0)AdUi();keyval=KeyScan();switch(keyval){case 0://什么都不干{Delay_ms(50);break;}case 1://向上{if(MenuDis==1){if(currentMenu->selected == 0)//到了第一项break;else{currentMenu->selected--;DisplayMenu(currentMenu->selected);}}break;}case 2://向下{if(MenuDis==1){if(currentMenu->selected == currentMenu->itemCount-1)break;else{currentMenu->selected++;DisplayMenu(currentMenu->selected);}}break;}case 3://确认{if(MenuDis==0){MenuDis=1;LCD_Init();DisplayMenu(currentMenu->selected);}else{if(currentMenu->subMenus[currentMenu->selected] !=NULL){LCD_Init();currentMenu = currentMenu->subMenus[currentMenu->selected];DisplayMenu(currentMenu->selected);}else{if(currentMenu->func[currentMenu->selected] != NULL){LCD_Init();currentMenu->func[currentMenu->selected]();//执行相应的函数currentMenu->selected=0;DisplayMenu(currentMenu->selected);//返回后恢复原来的菜单状态}}}break;}case 4://取消{if(MenuDis==1){if(currentMenu->parent!=NULL)//父菜单不为空，将显示父菜单{LCD_Init();currentMenu = currentMenu->parent;currentMenu->selected=0;DisplayMenu(currentMenu->selected);}else{MenuDis=0;//currentMenu = MainMenu;currentMenu->selected=0;LCD_Init();AdUi();Delay_ms(100);}}else{Clr_Scr();Delay_ms(50);Write_Char(0,0x30);//关闭扩展指令//复位归零BaseAD[0]=ADResult[0];BaseAD[1]=ADResult[1];BaseAD[2]=ADResult[2];BaseAD[3]=ADResult[3];AdUi();}break;}default:break;}}//用于显示菜单项void DisplayMenu(u8 line) //显示菜单项并设置选中的项反白{int i;line = 3-(currentMenu->range_to-line);for(i = 0;i<4;i++){LCD_Write_String(i,0,currentMenu->menuItems[i+currentMenu->range_from]); }WhiteLineInit();White_Line(line,0,8);//反白显示指定行}void func(void){uint8_t* s="为人民服务";LCD_Write_String(1,0,s);Delay_ms(3000);}void Unitch1(void){UnitCh=0;LCD_Init();currentMenu = currentMenu->parent;currentMenu->selected=0;DisplayMenu(currentMenu->selected); }void Unitch2(void){UnitCh=1;LCD_Init();currentMenu = currentMenu->parent;currentMenu->selected=0;DisplayMenu(currentMenu->selected); }void Unitch3(void){UnitCh=2;LCD_Init();currentMenu = currentMenu->parent;currentMenu->selected=0;DisplayMenu(currentMenu->selected); }void Unitch4(void){LCD_Init();currentMenu = currentMenu->parent;currentMenu->selected=0;DisplayMenu(currentMenu->selected); }void DiaChange(void){uint8_t* s="单位：MM";//测试代码u16 a=0;int i=0;//u16 tmp1;LCD_Init();LCD_Write_String(0,0,s);zhijing=Change(zhijing,title1);mianji=3.14*((zhijing/2)*(zhijing/2));EE_WriteVariable(VirtAddVarTab[0], zhijing);//测试代码//for(i=0;i<99;i++)//{//a=a+1;//LCD_Write_Tri_Value(2,3,a);//Delay_ms(50);//}}void MlChange(void){uint8_t* s="单位：KN/MM2";LCD_Init();LCD_Write_String(0,0,s);moliang=Change(moliang,title2);EE_WriteVariable(VirtAddVarTab[1], moliang);}//数字按键循环，升到9后变0，降到0后变9,参数pm为加减，1为+，0为减u16 NumLoop(u16 num,u8 pm){if (pm==1){if (num>=9)num=0;elsenum=num+1;}else{if (num<=0)num=9;elsenum=num-1;}return num;}//Sval代表直径或模量的默认值，返回修改后直径或模量的值u8 Change(u8 Sval,uint8_t* title){u16 baiwei,shiwei,gewei,Dval;//数字ascii码//char tmpval;//按键返回值u8 keyval=0;//光标位置3为百位、4为十位，5为个位u8 loc=3;//是否选中其中一位u8 clicked=0;//光标闪烁位，是否闪烁u8 flicker=0;baiwei=(u16)(Sval/100);shiwei=(u16)((Sval%100)/10);gewei=(u16)((Sval%100)%10);//tmpval=(char)baiwei + 0x30;//LCD_Write_Char(2,3,tmpval);//tmpval=(char)shiwei + 0x30;//LCD_Write_Char(2,4,tmpval);//tmpval=(char)gewei + 0x30;//LCD_Write_Char(2,5,tmpval);//LCD_Write_Single_Num(2,3,baiwei);//LCD_Write_Single_Num(2,4,shiwei);//LCD_Write_Single_Num(2,5,gewei);LCD_Write_Tri_Value(2,3,Sval);WhiteLineInit();White_Line(2,3,1);//反白显示指定行while(1){keyval=KeyScan();switch(keyval){case 0://什么都不干{if (clicked){if (flicker==0){White_Line(2,loc,1);flicker=1;}else{Shut_White_Line(2,loc,1);flicker=0;}}//else//White_Line(2,loc,1);Delay_ms(300);break;}case 1://向上{if (clicked==0){if (loc>3)loc=loc-1;elseloc=3;WhiteLineInit();White_Line(2,loc,1);}else{switch (loc){case 3:{baiwei=NumLoop(baiwei,1);LCD_Init();break;}case 4:{shiwei=NumLoop(shiwei,1);LCD_Init();break;}case 5:{gewei=NumLoop(gewei,1);LCD_Init();break;}default:break;}}break;}case 2://向下{if (clicked==0){if (loc<5)loc=loc+1;elseloc=5;WhiteLineInit();White_Line(2,loc,1);}else{switch (loc){case 3:{baiwei=NumLoop(baiwei,0);LCD_Init();break;}case 4:{shiwei=NumLoop(shiwei,0);LCD_Init();break;}case 5:{gewei=NumLoop(gewei,0);LCD_Init();break;}default:break;}}break;}case 3://确认{if (clicked)clicked=0;elseclicked=1;break;}case 4://取消{if (clicked)clicked=0;else //返回主菜单{LCD_Init();currentMenu = &MainMenu;currentMenu->selected=0;DisplayMenu(currentMenu->selected);//返回新的数值Dval=baiwei*100+shiwei*10+gewei;return Dval;}break;}default:break;}//LCD_Init();LCD_Write_String(0,0,title);Dval=baiwei*100+shiwei*10+gewei;LCD_Write_Tri_Value(2,3,Dval);Delay_ms(20);}}//初始化菜单:void MenuInit(void){MainMenu.subMenus = malloc(sizeof(&MainMenu)*4);MainMenu.subMenus[0] = &UnitMenu;//第1项没有子菜单置null,选择后程序会调用func中相应项中的函数MainMenu.subMenus[1] = NULL;//&DiaMenu;直接执行设置函数MainMenu.subMenus[2] = NULL;//&MlMenu;直接执行设置函数MainMenu.subMenus[3] = NULL;MainMenu.func = malloc(sizeof(&func)*4);MainMenu.func[0] = &func;MainMenu.func[1] = &DiaChange;MainMenu.func[2] = &MlChange;//当选择了并按了确定，会执行func函数MainMenu.func[3] = NULL;MainMenu.parent = NULL;//表示是顶级菜单UnitMenu.subMenus = malloc(sizeof(&UnitMenu)*4);UnitMenu.subMenus[0] = NULL;UnitMenu.subMenus[1] = NULL;UnitMenu.subMenus[2]= NULL;UnitMenu.subMenus[3]= NULL;UnitMenu.func = malloc(sizeof(&Unitch1)*4);UnitMenu.func[0] = &Unitch1;UnitMenu.func[1] = &Unitch2;UnitMenu.func[2] = &Unitch3;UnitMenu.func[3] = &Unitch4;UnitMenu.parent = &MainMenu;//上一级菜单是MainMenu.进入查询子菜单后按返回键，将会显示这个菜单项// DiaMenu.subMenus = malloc(sizeof(&DiaMenu)*1);// DiaMenu.subMenus[0] = NULL;// DiaMenu.func = malloc(sizeof(&func)*1);// DiaMenu.func[0] = &func;// DiaMenu.parent = &MainMenu;//上一级菜单是MainMenu.进入查询子菜单后按返回键，将会显示这个菜单项//// MlMenu.subMenus = malloc(sizeof(&MlMenu)*1);// MlMenu.subMenus[0] = NULL;// MlMenu.func = malloc(sizeof(&func)*1);// MlMenu.func[0] = &func;// MlMenu.parent = &MainMenu;//上一级菜单是MainMenu.进入查询子菜单后按返回键，将会显示这个菜单项currentMenu = &MainMenu;}/************menu.c*******************/。

一起来学LCD12864菜单程序（包含完整程序）一起来学LCD12864菜单程序（包含完整程序）/*-------------------------------------------项目名：家电中央控制系统工程程序名：显示MCU总体程序编写人：杜洋初写时间：2005年9月5日晚20时程序功能：实现液晶、语音部分的人机对话和总线的通信实现方法：用中断实现总线接收CPU说明：89S5212MHZ晶振接口说明：（详见初定义）信息说明：修改日志：NO.1--------------------------------------------*/;----------------------------------------初定义LCDDAT EQU P2RS EQU P3.5RW EQU P3.6E EQU P3.7REDLED EQU P3.4BACKLED EQU P3.1PLAY EQU P1.7STOPIN EQU P3.0LIN EQU P3.2SPDAT EQU P1XX2 EQU P0.0LT_RAM EQU 30HLR_RAM EQU 40HSP_RAM EQU 20HDIS1_RAM EQU 50HDIS2_RAM EQU 70HDIS3_RAM EQU 60HDIS4_RAM EQU 80HRR1 EQU 26HRR3 EQU 21HRR4 EQU 22HT0_RAM EQU 23HQR3_RAM EQU 24HQR2_RAM EQU 25HLCDDISPLAY EQU 26H ;菜单显示移位寄存器MENU_RAM EQU 27H;菜单位置寄存器ONOFFLCD EQU 28H;-------------------------------------程序入口ORG 0000HJMP LCD_STARTORG 0003HJMP LIN_INT0ORG 000BHJMP LED_T0ORG 0030H;--------------------------------------主程序开始LCD_START br>SETB PLAYMOV T0_RAM,#250MOV TMOD,#01HSETB ET0MOV TL0,#0B0H ;50MS 定时初值（T0计时用）MOV TH0,#3CH ;50MS定时初值CLR IT0SETB EX0SETB TR0SETB EAMOV DPTR,#TAB_0CALL START_LCD;-----自检程序CALL DL1SMOV MENU_RAM,#00HMOV DPTR,#TAB_HCALL START_LCDCLR LCDDISPLAY;--------------------------------------主循环体程序LCD_LOOP br>JB ONOFFLCD,DISPLAY_PROLCD_LOOP_1br>JMP LCD_LOOP;---------------------------- 菜单显示处理DISPLAY_PRO br>MOV A,MENU_RAMMOV DPTR,#MENUTAB_HOSTRLC AJMP @A+DPTRMENUNEXT br>CALL START_LCDCLR LCDDISPLAYCLR ONOFFLCDJMP LCD_LOOP;-------------------------MENUTAB_HOST:JMP HOST_H ;主菜单JMP HOST_1 ; 1，控制JMP HOST_2 ; 2，设置JMP HOST_3 ; 3，智能JMP HOST_4 ; 4，帮助<。

#include "reg52.h"#include "intrins.h"sbit io_LCD12864_RS = P2^5 ;sbit io_LCD12864_RW = P2^6 ;sbit io_LCD12864_EN = P2^7 ;sbit A=P3^7;#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_INCSET_READCLR_ENSET_ENwhile( ( io_LCD12864_DATAPORT & 0x80 ) && ( ++nTimeOut != 0 ) ) ;CLR_ENSET_INCSET_READ}void v_Lcd12864SendCmd_f( unsigned char byCmd ) //发送命令{v_Lcd12864CheckBusy_f() ;SET_INCSET_WRITECLR_ENio_LCD12864_DA TAPORT = byCmd ;_nop_();_nop_();SET_EN_nop_();_nop_();CLR_ENSET_READSET_INC}void v_Lcd12864SendData_f( unsigned char byData ) //发送数据{v_Lcd12864CheckBusy_f() ;SET_DATASET_WRITECLR_ENio_LCD12864_DA TAPORT = byData ;_nop_();_nop_();SET_EN_nop_();_nop_();CLR_ENSET_READSET_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}unsigned char u8_Lcd12864ReadByte_f( void ) {unsigned char byReturnValue ;v_Lcd12864CheckBusy_f() ;io_LCD12864_DA TAPORT = 0xff ;SET_DATASET_READCLR_ENSET_ENbyReturnValue = io_LCD12864_DATAPORT ;CLR_ENreturn byReturnValue ;}void v_Lcd12864DrawPoint_f( unsigned char X, unsigned char Y, unsigned char Color ) {unsigned char Row , Tier , Tier_bit ;unsigned char ReadOldH, ReadOldL ;v_Lcd12864SendCmd_f( 0x34 ) ;v_Lcd12864SendCmd_f( 0x36 ) ;Tier = X >> 4 ;Tier_bit = X & 0x0f ;if( Y < 32 ){Row = Y ;}else{Row = Y - 32 ;Tier += 8 ;}v_Lcd12864SendCmd_f( Row + 0x80 ) ;v_Lcd12864SendCmd_f( Tier + 0x80 ) ;u8_Lcd12864ReadByte_f() ;ReadOldH = u8_Lcd12864ReadByte_f() ;ReadOldL = u8_Lcd12864ReadByte_f() ;v_Lcd12864SendCmd_f( Row + 0x80 ) ;v_Lcd12864SendCmd_f( Tier + 0x80 ) ;if( Tier_bit < 8 ){switch( Color){case 0 : ReadOldH &=( ~( 0x01 << ( 7 - Tier_bit ))) ; break ;case 1 : ReadOldH |= ( 0x01 << ( 7 - Tier_bit )) ; break ;case 2 : ReadOldH ^= ( 0x01 << ( 7 - Tier_bit )) ; break ;default : break ;}v_Lcd12864SendData_f( ReadOldH ) ;v_Lcd12864SendData_f( ReadOldL ) ;}else{switch(Color){case 0 : ReadOldL &= (~( 0x01 << ( 15 - Tier_bit ))) ; break ;case 1 : ReadOldL |= ( 0x01 << ( 15 - Tier_bit )) ; break ;case 2 : ReadOldL ^= ( 0x01 << ( 15 - Tier_bit )) ; break ;default : break ;}v_Lcd12864SendData_f( ReadOldH ) ;v_Lcd12864SendData_f( ReadOldL ) ;}v_Lcd12864SendCmd_f( 0x30 ) ;}void v_Lcd12864DrawLineX_f( unsigned char X0, unsigned char X1, unsigned char Y, unsigned char Color ){unsigned char Temp ;if( X0 > X1 ){Temp = X1 ;X1 = X0 ;X0 = Temp ;}for( ; X0 <= X1 ; X0++ )v_Lcd12864DrawPoint_f( X0, Y, Color ) ;}//画垂直线：void v_Lcd12864DrawLineY_f( unsigned char X, unsigned char Y0, unsigned char Y1, unsigned char Color ){unsigned char Temp ;if( Y0 > Y1 ){Temp = Y1 ;Y1 = Y0 ;Y0 = Temp ;}for(; Y0 <= Y1 ; Y0++)v_Lcd12864DrawPoint_f( X, Y0, Color);}void gui_clear(){unsigned char i , j , k;v_Lcd12864SendCmd_f(0x34);//扩展指令集，8位数据传输v_Lcd12864SendCmd_f(0x34);//绘图显示关闭for(i = 0; i < 2; i ++)//分上下两屏写{for(j = 0; j < 32; j ++){v_Lcd12864SendCmd_f(0x80 + j);//写y坐标v_DelayMs_f( 1 ) ;if(i == 0) //写x坐标{v_Lcd12864SendCmd_f(0x80);v_DelayMs_f( 1 ) ;}else //写下半屏{v_Lcd12864SendCmd_f(0x88);v_DelayMs_f( 1) ;}for(k = 0; k < 16; k ++)//写一整行数据{v_Lcd12864SendData_f(0x00);//写高字节v_Lcd12864SendData_f(0x00);//写低字节v_DelayMs_f( 1 ) ;}}}v_Lcd12864SendCmd_f(0x36);//打开绘图显示v_Lcd12864SendCmd_f(0x30);//打开基本指令集}void main(){v_Lcd12864Init_f();gui_clear();v_DelayMs_f( 2 ) ;v_Lcd12864DrawPoint_f(15,18,1);// v_Lcd12864DrawPoint_f(16,18,1);// v_Lcd12864DrawPoint_f(17,18,1);// v_Lcd12864DrawPoint_f(18,18,1);// v_Lcd12864DrawLineX_f( 0, 127 , 0, 1 ) ;// v_Lcd12864DrawLineX_f( 0, 127 , 7, 1 ) ;// v_Lcd12864DrawLineX_f( 0, 127 , 15, 1 ) ;// v_Lcd12864DrawLineX_f( 0, 127 , 23, 1 ) ;// v_Lcd12864DrawLineX_f( 0, 127 , 31, 1 ) ;// v_Lcd12864DrawLineX_f( 0, 127 , 39, 1 ) ;// v_Lcd12864DrawLineX_f( 0, 127 , 47, 1 ) ;}。

附：实验箱程序#include<reg52.h>#include<ABSACC.H>typedef unsigned char uchar;typedef unsigned int uint;#define LLCD_CMD_WR XBYTE[0xfe04] //地址需根据实际情况计算改变（下同）#define LLCD_CMD_RD XBYTE[0xfe06]#define LLCD_DATA_WR XBYTE[0xfe05]#define LLCD_DATA_RD XBYTE[0xfe07]#define RLCD_CMD_WR XBYTE[0xfe00]#define RLCD_CMD_RD XBYTE[0xfe02]#define RLCD_DATA_WR XBYTE[0xfe01]#define RLCD_DATA_RD XBYTE[0xfe03]sbit busy=P0^7;code uchar hanzil[]={0x08,0x64,0x23,0xA6,0xAA,0xA2,0xAA,0xB4,0xA3,0xA2,0xA6,0x2A,0x22,0x62,0x20,0x00,0x00,0x00,0x00,0xFF,0x4A,0x4A,0x4A,0x4A,0x4A,0x4A,0x4B,0xF8,0x00,0x00,0x00,0x00,/*"管",0*/0x42,0x42,0xFE,0x42,0x42,0x00,0x40,0x5E,0x50,0xD0,0x5F,0x50,0x50,0x5E,0x40,0x00,0x10,0x10,0x0F,0x08,0x04,0x00,0xFF,0x01,0x01,0x7F,0x01,0x3F,0x41,0x81,0x7F,0x00,/*"瑞",1*/0x00,0x00,0x60,0x50,0x10,0x08,0x08,0x08,0x08,0x08,0x08,0x98,0xF0,0x70,0x00,0x00,0x00,0x00,0x20,0x30,0x28,0x28,0x24,0x24,0x22,0x22,0x21,0x20,0x30,0x18,0x00,0x00,/*"2",0*/0x00,0x00,0x00,0x60,0x90,0x08,0x08,0x10,0x20,0x10,0x08,0x08,0x90,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02,0x04,0x08,0x04,0x02,0x01,0x00,0x00,0x00,0x00,/*"心",0*/0x00,0x00,0x00,0x60,0x90,0x08,0x08,0x10,0x20,0x10,0x08,0x08,0x90,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02,0x04,0x08,0x04,0x02,0x01,0x00,0x00,0x00,0x00,/*"心",0*/0x00,0xE0,0xF0,0x10,0x08,0x08,0x08,0x08,0x08,0x08,0x18,0x10,0xF0,0xC0,0x00,0x00,0x00,0x00,0x11,0x33,0x22,0x22,0x22,0x22,0x22,0x32,0x11,0x1D,0x0F,0x03,0x00,0x00,/*"9",3*/0x00,0x00,0x00,0x60,0x90,0x08,0x08,0x10,0x20,0x10,0x08,0x08,0x90,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02,0x04,0x08,0x04,0x02,0x01,0x00,0x00,0x00,0x00,/*"心",0*/0x00,0x00,0x30,0x30,0x08,0x08,0x88,0x88,0x88,0x88,0x58,0x70,0x30,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x20,0x20,0x20,0x20,0x20,0x20,0x31,0x11,0x1F,0x0E,0x00,0x00,/*"3",5*/0x00,0x00,0x30,0x30,0x08,0x08,0x88,0x88,0x88,0x88,0x58,0x70,0x30,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x20,0x20,0x20,0x20,0x20,0x20,0x31,0x11,0x1F,0x0E,0x00,0x00,/*"3",6*/0x00,0x00,0x60,0x50,0x10,0x08,0x08,0x08,0x08,0x08,0x08,0x98,0xF0,0x70,0x00,0x00,0x00,0x00,0x20,0x30,0x28,0x28,0x24,0x24,0x22,0x22,0x21,0x20,0x30,0x18,0x00,0x00,/*"2",7*/0x00,0x00,0x60,0x50,0x10,0x08,0x08,0x08,0x08,0x08,0x08,0x98,0xF0,0x70,0x00,0x00,0x00,0x00,0x20,0x30,0x28,0x28,0x24,0x24,0x22,0x22,0x21,0x20,0x30,0x18,0x00,0x00,/*"2",8*/0x00,0x00,0x30,0x30,0x08,0x08,0x88,0x88,0x88,0x88,0x58,0x70,0x30,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x20,0x20,0x20,0x20,0x20,0x20,0x31,0x11,0x1F,0x0E,0x00,0x00,/*"3",9*/0x00,0x00,0x20,0x10,0x08,0x10,0x20,0x00,0x00,0x20,0x10,0x08,0x10,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x04,0x08,0x08,0x04,0x02,0x00,0x00,0x00,0x00,0x00,/*"未命名文件",0*/};void lcd_cmd_wr(uchar cmdcode,uchar right);void lcd_data_wr(uchar ldata,uchar right);void lcd_busy_rd(uchar right);void lcd_hanzi_wr(uchar posx,uchar posy,uchar *hanzi);void lcd_str_wr(uchar row,uchar col,uchar n,uchar *str);void lcd_rol();void lcd_init();void delay(uint nms);void main(){lcd_init();lcd_str_wr(1,1,13,hanzil); //起始行、列、汉字长度delay(100);while(1){lcd_rol();delay(1000);}}void lcd_cmd_wr(uchar cmdcode,uchar right) {lcd_busy_rd(right);if(right==1){ RLCD_CMD_WR=cmdcode; }else{ LLCD_CMD_WR=cmdcode; }}void lcd_data_wr(uchar ldata,uchar right) {lcd_busy_rd(right);if(right==1){RLCD_DATA_WR=ldata;}else{LLCD_DATA_WR=ldata;}}void lcd_busy_rd(uchar right){if(right==0)RLCD_CMD_RD;elseLLCD_CMD_RD;}void delay(uint nms){uint i;for(;nms>0;nms--)for(i=0;i<500;i++);}void lcd_init(void) //LCD初始化子程序{uint k,m;lcd_cmd_wr(0x3e+1,0);lcd_cmd_wr(0xc0+0,0);lcd_cmd_wr(0xb8+0,0);lcd_cmd_wr(0x40+0,0);lcd_cmd_wr(0x3e+1,1);lcd_cmd_wr(0xc0+0,1);lcd_cmd_wr(0x40+0,1);lcd_cmd_wr(0xb8+0,1);for(k=0;k<8;k++) //页循环{for(m=0;m<64;m++) //列循环{lcd_data_wr(0x00,0);lcd_data_wr(0x00,1);}lcd_cmd_wr(0xb8+k+1,0);lcd_cmd_wr(0x40+0,0);lcd_cmd_wr(0xb8+k+1,1);lcd_cmd_wr(0x40+0,1);}}void lcd_hanzi_wr(uchar posx,uchar posy,uchar*hanzi) //显示汉字子程序{uchar i;if(posy<4) //左半屏{lcd_cmd_wr(0xb8+2*posx,0);lcd_cmd_wr(0x40+16*posy,0);for(i=0;i<16;i++){lcd_data_wr(hanzi[i],0);}lcd_cmd_wr(0xb8+2*posx+1,0);lcd_cmd_wr(0x40+16*posy,0);for(i=16;i<32;i++){lcd_data_wr(hanzi[i],0);}}else //右半屏{lcd_cmd_wr(0xb8+posx*2,1);lcd_cmd_wr(0x40+16*(posy-4),1);for(i=0;i<16;i++){lcd_data_wr(hanzi[i],1);}lcd_cmd_wr(0xb8+2*posx+1,1);lcd_cmd_wr(0x40+16*(posy-4),1);for(i=16;i<32;i++){lcd_data_wr(hanzi[i],1);}}}void lcd_str_wr(uchar row,uchar col,uchar n,uchar*str) {uchar i;for(i=0;i<n;i++){if(col>7){row++;col=col-8;}lcd_hanzi_wr(row,col,str+i*32);col++;}}void lcd_rol(void) //滚动上移子程序{uchar i;for(i=0;i<64;i++){lcd_cmd_wr(0xc0+i,0);lcd_cmd_wr(0xc0+i,1);delay(10);}}PROTEUS仿真实验现象。

LCD lgm12864 程序代码/**************************************LCD:lgm12864,LCD control IC:KS0108**************************************/#define uchar unsigned char#define uint unsigned int#define DataPort P0 //LCD:D0-D7sbit RS=P2^1; //Data or Instrument Selectsbit RW=P2^2; //Write or Readsbit E=P2^3; // Enable singlesbit CS1=P2^4; //Master chip enablesbit CS2=P2^5;sbit RST=P2^6; //Lcm reset/*数字数组*/unsigned char code suzidot[160] ={/*0 CHAR_30 */0x00,0xE0,0xF0,0x18,0x08,0x18,0xF0,0xE0,0x00,0x0F,0x1F,0x30,0x20,0x30,0x1F,0x0F, /*1 CHAR_31 */0x00,0x10,0x10,0xF8,0xF8,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x3F,0x20,0x20,0x00, /*2 CHAR_32 */0x00,0x70,0x78,0x08,0x08,0x88,0xF8,0x70,0x00,0x30,0x38,0x2C,0x26,0x23,0x31,0x30, /*3 CHAR_33 */0x00,0x30,0x38,0x88,0x88,0xC8,0x78,0x30,0x00,0x18,0x38,0x20,0x20,0x31,0x1F,0x0E, /*4 CHAR_34 */0x00,0x00,0xC0,0xE0,0x30,0xF8,0xF8,0x00,0x00,0x07,0x07,0x24,0x24,0x3F,0x3F,0x24, /*5 CHAR_35 */0x00,0xF8,0xF8,0x88,0x88,0x88,0x08,0x08,0x00,0x19,0x39,0x21,0x20,0x31,0x1F,0x0E, /*6 CHAR_36 */0x00,0xE0,0xF0,0x98,0x88,0x98,0x18,0x00,0x00,0x0F,0x1F,0x31,0x20,0x31,0x1F,0x0E, /*7 CHAR_37 */0x00,0x38,0x38,0x08,0xC8,0xF8,0x38,0x08,0x00,0x00,0x00,0x3F,0x3F,0x00,0x00,0x00, /*8 CHAR_38 */0x00,0x70,0xF8,0x88,0x08,0x88,0xF8,0x70,0x00,0x1C,0x3E,0x23,0x21,0x23,0x3E,0x1C, /*9 CHAR_39 */0x00,0xE0,0xF0,0x18,0x08,0x18,0xF0,0xE0,0x00,0x00,0x31,0x33,0x22,0x33,0x1F,0x0F };/*盐CD1CE */0x80,0x88,0x88,0x88,0xFF,0x48,0x48,0x48,0x00,0xFF,0x00,0x08,0x30,0x60,0x00,0x00, 0x40,0x41,0x40,0x7E,0x42,0x42,0x7E,0x42,0x42,0x7E,0x42,0x42,0x7E,0x40,0x40,0x00,/*城CB3C7 */0x10,0x10,0xFF,0x10,0x10,0xF8,0x48,0x48,0xC8,0x08,0xFF,0x08,0x0A,0xEC,0x48,0x00, 0x04,0x0C,0x07,0x42,0x32,0x0F,0x08,0x58,0x4F,0x20,0x13,0x0C,0x33,0x40,0x38,0x00,/*工CB9A4 */0x00,0x00,0x02,0x02,0x02,0x02,0x02,0xFE,0x02,0x02,0x02,0x02,0x02,0x02,0x00,0x00, 0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x00,/*学CD1A7 */0x40,0x30,0x10,0x12,0x5C,0x54,0x50,0x51,0x5E,0xD4,0x50,0x18,0x57,0x32,0x10,0x00,0x00,0x02,0x02,0x02,0x02,0x02,0x42,0x82,0x7F,0x02,0x02,0x02,0x02,0x02,0x02,0x00,/*院CD4BA */0xFE,0x02,0x32,0x4A,0x86,0x0C,0x24,0x24,0x25,0x26,0x24,0x24,0x24,0x0C,0x04,0x00, 0xFF,0x00,0x02,0x04,0x83,0x41,0x31,0x0F,0x01,0x01,0x7F,0x81,0x81,0x81,0xF1,0x00,};unsigned char code hzdottime[] ={/*年CC4EA */0x00,0x20,0x10,0xCC,0x47,0x44,0x44,0xFC,0x44,0x44,0x44,0x64,0x46,0x04,0x00,0x00, 0x04,0x04,0x04,0x07,0x04,0x04,0x04,0xFF,0x04,0x04,0x04,0x04,0x04,0x06,0x04,0x00,/*月CD4C2 */0x00,0x00,0x00,0x00,0xFE,0x22,0x22,0x22,0x22,0x22,0x22,0xFF,0x02,0x00,0x00,0x00, 0x00,0x80,0x40,0x30,0x0F,0x02,0x02,0x02,0x02,0x42,0x82,0x7F,0x00,0x00,0x00,0x00, /*日CC8D5 */0x00,0x00,0x00,0xFE,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0xFF,0x02,0x00,0x00,0x00, 0x00,0x00,0x00,0x7F,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x7F,0x00,0x00,0x00,0x00, /*时CCAB1 */0x00,0xFC,0x84,0x84,0x84,0xFE,0x14,0x10,0x90,0x10,0x10,0x10,0xFF,0x10,0x10,0x00,0x00,0x3F,0x10,0x10,0x10,0x3F,0x00,0x00,0x00,0x23,0x40,0x80,0x7F,0x00,0x00,0x00,/*分CB7D6 */0x00,0x80,0x40,0x20,0x98,0x86,0x80,0x80,0x83,0x8C,0x90,0x20,0xC0,0x80,0x80,0x00, 0x01,0x00,0x80,0x40,0x20,0x1F,0x00,0x40,0x80,0x40,0x3F,0x00,0x00,0x01,0x00,0x00,/*秒CC3EB */0x20,0x24,0x24,0xA4,0xFE,0xA3,0x22,0x80,0x70,0x00,0xFF,0x00,0x10,0x20,0x60,0x00, 0x10,0x08,0x06,0x01,0xFF,0x00,0x81,0x80,0x40,0x20,0x17,0x08,0x04,0x03,0x00,0x00,/*周CD6DC */0x40,0x20,0x1F,0x00,0x00,0x7E,0x22,0x22,0x22,0x3F,0x42,0x80,0x7F,0x00,0x00,0x00,/*一CD2BB */0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*二CB6FE */0x00,0x00,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x0C,0x08,0x00,0x00,0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x18,0x10,0x00,/*三CC8FD */0x00,0x04,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0xC4,0x86,0x04,0x00,0x00,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x30,0x20,0x00,/*四CCBC4 */0x00,0xFC,0x04,0x04,0x04,0xFC,0x04,0x04,0x04,0xFC,0x04,0x04,0x04,0xFE,0x04,0x00,0x00,0x7F,0x20,0x28,0x24,0x23,0x20,0x20,0x20,0x21,0x22,0x22,0x22,0x7F,0x00,0x00,/*五CCEE5 */0x00,0x04,0x84,0x84,0x84,0x84,0xFC,0x84,0x84,0x84,0x84,0xC4,0x86,0x84,0x00,0x00,0x40,0x40,0x40,0x40,0x78,0x47,0x40,0x40,0x40,0x40,0x40,0x7F,0x40,0x60,0x40,0x00,/*六CC1F9 */0x20,0x20,0x20,0x20,0x20,0x22,0x2C,0x38,0x20,0x20,0x20,0x20,0x20,0x30,0x20,0x00,0x00,0x40,0x20,0x18,0x06,0x03,0x00,0x00,0x00,0x01,0x02,0x0C,0x38,0x70,0x00,0x00,/*星CD0C7 */0x00,0x00,0xBE,0x2A,0x2A,0x2A,0x2A,0xEA,0x2A,0x2A,0x2A,0x2A,0xBF,0x02,0x00,0x00, 0x48,0x44,0x4B,0x49,0x49,0x49,0x49,0x7F,0x49,0x49,0x49,0x4D,0x49,0x61,0x40,0x00,/*期CC6DA */0x00,0x08,0xFF,0xA8,0xA8,0xA8,0xFF,0x08,0x00,0xFE,0x22,0x22,0x22,0xFF,0x02,0x00, 0x84,0x44,0x37,0x04,0x04,0x14,0xA7,0x44,0x24,0x1F,0x02,0x42,0x82,0x7F,0x00,0x00};void Delay(void){ _nop_();_nop_();_nop_();_nop_();_nop_();}/*写一个字节数据或命令*/void out_byte(uchar byte,bit RW0,bit RS0){Delay();Delay();Delay();//Delay();RW=RW0;RS=RS0;Delay();DataPort=byte;Delay();E=1; Delay(); //LCD使能E=0;Delay();}void SetLine(uchar line){ line=line & 0x07; // 0<=line<=7line=line|0xb8; //1011 1xxxout_byte(line,0,0);//写行地址命令}//设定列地址--Y 0-63void SetColumn(uchar column){column=column &0x3f; // 0=<column<=63 column=column | 0x40; //01xx xxxxout_byte(column,0,0); //写列地址命令}//设定显示开始行--XXvoid SetStartLine(uchar startline) //0--63 {startline=startline & 0x3f;startline=startline|0xc0; //1100 0000out_byte(startline,0,0);}//选择屏幕//screen: 0-全屏,1-左屏,2-右屏void SelectScreen(uchar screen){switch(screen){case 0: CS1=1;Delay(); //全屏CS2=1;Delay();break;case 1: CS1=1;Delay(); //左屏CS2=0;Delay();break;case 2: CS1=0;Delay(); //右屏CS2=1;Delay();break;}}//清屏//screen: 0-全屏,1-左屏,2-右屏void ClearScreen(uchar screen){uchar i,j;SelectScreen(screen);{ SetLine(i);for(j=0;j<64;j++){out_byte(0x00,0,1); //写数据0x00清屏}}}void ClearScreen123(void){uchar i;ClearScreen(1);for(i=0;i<20;i++); //清屏ClearScreen(2);for(i=0;i<20;i++);}//显示8*8点阵//旋转90度:字模被竖着切分//lin:行(0-7), column: 列(0-7)//address : 字模区首地址void Show88(uchar lin,uchar column,uchar *str){uchar i;SetLine(lin);SetColumn(column<<3); //每隔八点为一列，共0－7列for(i=0;i<8;i++) out_byte(*(str+i) ,0,1);}//显示8*16字符//screen:屏幕选择//lin:行(0-3), column: 列(0-7)void ShowChar(uchar screen,uchar lin,uchar column,uchar *ch) { lin=lin<<1;SelectScreen(screen);Show88(lin ,column,ch);Show88(lin+1,column,ch+8);}//显示一个汉字//screen:屏幕选择//lin:行(0-3), column: 列(0-7)//hzcode: 汉字代码(自定义的)void ShowHZ(uchar screen,uchar lin,uchar column,uchar hzcode[]) { lin=lin<<1; //lin*2SelectScreen(screen);Show88(lin,column,hzcode);Show88(lin,column+1,hzcode+8);Show88(lin+1,column+1,hzcode+24);}//连续显示汉字-lin:行(0-3), column: 列(0-7)//N:一行连续显示汉字个数void ShowHZL(uchar screen,uchar lin,uchar column,uchar N,uchar hz[]) {uchar i;uchar idata n0,n1,n2,col;col=column<<3;n0=(64-col)/16; //一屏可显示汉字个数（<=4）if(N<=n0){for(i=0;i<N;i++){ShowHZ(screen,lin,column,hz+i*32);//hz+i*32表示连续的汉字column=column+2;}}else if(N>n0) //超出一屏可显示汉字个数（<=4）{for(i=0;i<n0;i++) //当前屏显示n0个字{ShowHZ(screen,lin,column,hz+i*32);column=column+2;}n1=N-n0; //剩余字数if(++screen>2) return; //在下一屏显示剩余字数，如屏幕超出则返回col=0; //在下一屏0列开始显示剩余字数if(n1<=4){for(i=0;i<n1;i++){ShowHZ(screen,lin,col,(hz+n0*32)+i*32);col=col+2;}}else if(n1>4) //超出一屏可显示汉字个数（<=4）{for(i=0;i<4;i++){ShowHZ(screen,lin,col,(hz+n0*32)+i*32);col=col+2;}n2=n1-4; //剩余字数if(++screen>2) return;col=0;for(i=0;i<n2;i++){ShowHZ(screen,lin,col,(hz+n0*32+128)+i*32);col=col+2;}}//连续显示数字或字母//N:一行连续显示字符个数void ShowCharL(uchar screen,uchar lin,uchar column,uchar N,uchar ch[]) {uchar i;uchar idata n0,n1,n2,col;col=column<<3;n0=(64-col)/8; //一屏可显示字符个数（<=8）if(N<=n0){for(i=0;i<N;i++){ShowChar(screen,lin,column,ch+i*16);column=column+1;}}else if(N>n0){for(i=0;i<n0;i++){ShowChar(screen,lin,column,ch+i*16);column=column+1;}n1=N-n0; //剩余字数if(++screen>2) return;col=0;if(n1<=8){for(i=0;i<n1;i++){ShowChar(screen,lin,col,(ch+n0*16)+i*16);col=col+1;}}else if(n1>8){for(i=0;i<8;i++){ShowChar(screen,lin,col,(ch+n0*16)+i*16);col=col+1;}n2=n1-8; //剩余字数if(++screen>2) return;col=0;for(i=0;i<n2;i++){ShowChar(screen,lin,col,(ch+n0*16+128)+i*16);col=col+1;}}//读显示数据uchar ReadByte(){uchar dat;//CheckState();RS=1; RW=1;DataPort=0xff;E=1;dat=DataPort;Delay();//for(i=0;i<10;i++);E=0;return(dat);}//反显一个8*8字块//lin:行(0-3), column: 列(0-7)void ReverseShow88(uchar lin,uchar column){uchar i;uchar tab[8];SetLine(lin);//读上部8列,每个方块8*8大小SetColumn(column<<3);tab[0]=ReadByte(); //空读!!!!! //?for(i=0;i<8;i++) tab[i]=~ReadByte();//写回SetLine(lin);SetColumn(column<<3);for(i=0;i<8;i++) out_byte(tab[i] ,0,1);}//反显一个字符8*16//lin:行(0-3), column: 列(0-7)void ReverseShowChar(uchar screen,uchar lin,uchar column) {lin=lin<<1;SelectScreen(screen);ReverseShow88(lin ,column);ReverseShow88(lin+1,column);}//lin:行(0-3), column: 列(0-7)void ReverseShowHZ(uchar screen,uchar lin,uchar column){lin=lin<<1;SelectScreen(screen);ReverseShow88(lin ,column );ReverseShow88(lin ,column+1);ReverseShow88(lin+1,column );ReverseShow88(lin+1,column+1);}//连续反白显示汉字//N:一行连续显示汉字个数void ReverseShowHZL(uchar screen,uchar lin,uchar column,uchar N) {uchar i;uchar idata n0,n1,n2,col;col=column<<3;n0=(64-col)/16; //一屏可显示汉字个数（<=4）if(N<=n0){for(i=0;i<N;i++){ReverseShowHZ( screen, lin, column);column=column+2;}}else if(N>n0){for(i=0;i<n0;i++){ReverseShowHZ( screen, lin, column);column=column+2;}n1=N-n0; //剩余字数if(++screen>2) return;col=0;if(n1<=4){for(i=0;i<n1;i++){ReverseShowHZ( screen, lin, col);col=col+2;}}else if(n1>4){for(i=0;i<4;i++){ReverseShowHZ( screen, lin, col);}n2=n1-4; //剩余字数if(++screen>2) return;col=0;for(i=0;i<n2;i++){ReverseShowHZ( screen, lin, col);col=col+2;}}}}void ShowSz(uchar screen0,uchar lin,uchar column,uchar szcode) {switch(szcode){case 0: ShowChar(screen0, lin, column,suzidot); break;case 1: ShowChar(screen0, lin, column,suzidot+16); break;case 2: ShowChar(screen0, lin, column,suzidot+32); break;case 3: ShowChar(screen0, lin, column,suzidot+48); break;case 4: ShowChar(screen0, lin, column,suzidot+64); break;case 5: ShowChar(screen0, lin, column,suzidot+80); break;case 6: ShowChar(screen0, lin, column,suzidot+96); break;case 7: ShowChar(screen0, lin, column,suzidot+112);break;case 8: ShowChar(screen0, lin, column,suzidot+128);break;case 9: ShowChar(screen0, lin, column,suzidot+144);break;default:ShowChar(screen0, lin, column,suzidot+128);//ReverseShowChar(screen0,lin,column); //反白显示'8' }}void iniLCD(void){uint i;for(i=0;i<10000;i++);RST=0;for(i=0;i<1000;i++);RST=1;SelectScreen(0);out_byte(0x3e,0,0); //关显示for(i=0;i<=100;i++);ClearScreen(0); for(i=0;i<=100;i++);//清屏SelectScreen(0);for(i=0;i<=100;i++);out_byte(0x3f,0,0); for(i=0;i<=100;i++);//开显示SelectScreen(0);for(i=0;i<=100;i++);SetStartLine(0); //开始行:0LCD lgm12864}- 11 -。

#include <reg52.h>#include <intrins.h>#define SENDCOMM 0XF8 //0XF1000#define READCOMM 0XFC //0XF1100#define SENDDATA 0XFA //0XF1010#define READDATA 0XFE //0XF1110void LCD_send_byte(unsigned char a);unsigned char LCD_read_byte(void);void LCD_comm(unsigned char comm);void LCD_setxy(unsigned char x,unsigned char y);void LCD_WriteStr(unsigned char dis_addr_x,unsigned char dis_addr_y,char* str); sbit E_CLK =P2^2; //clock inputsbit RW_SID=P2^1; //data input/outputsbit RS_CS =P2^0; //chip selectvoid delay(unsigned int n){unsigned int i;for(i=0; i<n; i++) {;}}void LCD_send_byte(unsigned char a){unsigned char i;for(i=8;i>0;i--){if(a&(0x01<<(i-1)))RW_SID=1;elseRW_SID=0;delay(100);E_CLK=1;delay(100);E_CLK=0;delay(100);}}unsigned char LCD_read_byte(void){unsigned char i,dat=0;for(i=8;i>0;i--){E_CLK=1;delay(100);if(RW_SID==1)dat|=(0x01<<(i-1));E_CLK=0;delay(100);}return dat;}unsigned char LCD_bf(void){unsigned char readh,readl;RS_CS=1;delay(100);LCD_send_byte(READCOMM);readh=LCD_read_byte();readl=LCD_read_byte();delay(100);RS_CS=0;}void LCD_comm(unsigned char comm) {unsigned char temp;RS_CS=1;delay(100);LCD_send_byte(SENDCOMM);temp=comm&0XF0;LCD_send_byte(temp);temp=((comm&0X0F)<<4)&0XF0; LCD_send_byte(temp);delay(100);RS_CS=0;}void LCD_data(unsigned char lcd_data)unsigned char temp;RS_CS=1;delay(100);LCD_send_byte(SENDDA TA);temp=lcd_data&0xf0;LCD_send_byte(temp);temp=(lcd_data&0X0F)<<4;LCD_send_byte(temp);delay(100);RS_CS=0;}void LCD_setxy(unsigned char x,unsigned char y) //设置显示位置X(1~16),Y(1~4){switch(y){case 1:LCD_comm(0X7F+x);break;case 2:LCD_comm(0X8F+x);break;case 3:LCD_comm(0X87+x);break;case 4:LCD_comm(0X97+x);break;default:break;}}void LCD_WriteStr(unsigned char dis_addr_x,unsigned char dis_addr_y,char* str)// 在指定位置显示字符串{unsigned char LCD_temp;LCD_setxy(dis_addr_x,dis_addr_y);LCD_temp=*str;while(LCD_temp != 0x00){LCD_data(LCD_temp);LCD_temp=*(++str);}}void LCD_init(void){unsigned char i;while(i==0x80)RS_CS=0;delay(500);LCD_comm(0x30);//一次送8位数据LCD_comm(0x0C);//整体显示，游标off，游标位置offLCD_comm(0x01);//清DDRAMLCD_comm(0x02);//DDRAM地址归位LCD_comm(0x80);//设定DDRAM 7位地址000，0000到地址计数器AC }void main(){LCD_init();LCD_WriteStr(3,1,"热烈欢迎");LCD_WriteStr(2,2,"宝鸡文理学院");LCD_WriteStr(1,3,"物理与信息技术系");LCD_WriteStr(2,4,"09测控测控班");while(1);}。

12864的液晶显示程序（无字库）12864.h#ifndef __12864_H__#define __12864_H__#include#include/***************************************利用I/O口模拟点阵液晶所需时序点阵液晶控制端口定义，需根据硬件适当改变****************************************/sbit LCD_RS = P2^0;//控制端口定义sbit LCD_RW = P2^1;sbit LCD_E = P2^2;sbit LCD_CSA = P2^3;//H选通，即高电平有效sbit LCD_CSB = P2^4;#define LCD_Data P0//LCD数据端口8位#define R 1#define L 2/*****************************************函数声明*****************************************/void ReadStatusLCD(unsigned char select);//从LCD读出忙标志位unsigned char ReadDataLCD(unsigned char select);//从LCD 读出数据void WriteDataLCD(unsigned char WDLCD,unsigned char select);//向LED写入数据void WriteCommandLCD(unsigned char WCLCD , unsigned char BusyC,unsigned char select);//向LCD写入命令void LcdReset(void) ;//初始化函数，完成液晶模块的初始设置void clear_LCD(unsigned char select);//清屏函数void Clr_All_Lcd(void);//全清屏函数void set_XY(unsigned char Column,unsigned char Page);//设置数据写入或读出的地址，通过页号和列数可以唯一确定一个地址void xy_Write(unsigned char Column,unsigned char Page,unsigned char dataW);//向指定行列写数据void LcmPutDots(unsigned char Column,unsigned char Page, unsigned char DotByte );//显示点void whiteword(unsigned char Column,unsigned char Page, const unsigned char puts[][16] );//显示16×16点阵的编码void WhiteWord_Com(unsigned char Column,unsigned char Page,unsigned char C_num,unsigned char V_num, unsigned char * puts );//通用的显示函数void Drawing_dot(unsigned char x,unsigned char y);void Drawing_line_vertical(unsigned x);#endif12864.c/****************************************************LCD12864点阵液晶屏，通过I/O口直接控制，采用模拟时序控制****************************************************/#include"12864.h"#include/*********************************************************** 功能：从LCD读取状态位变量：select用于选择LCD屏的左右,1选择左屏，2选择右屏***********************************************************/ void ReadStatusLCD(unsigned char select){switch(select){case 1:{LCD_CSA=1;LCD_CSB=0;break;}//左case 2:{LCD_CSA=0;LCD_CSB=1;break;}//右default: break;}LCD_Data = 0xff;//置位输入口，已实现输入LCD_RS=0;LCD_RW=1;LCD_E=1;//高电平读取数据//_nop_(); //若晶振速度高，可在此作延时处理while(LCD_Data&0x80);//最高位为忙标志,检测忙信号状态LCD_E=0;//_nop_(); //若晶振速度高，可在此作延时处理}/*********************************************************** 功能：从LCD读取数据变量：select用于选择LCD屏的左右,1选择左屏，2选择右屏***********************************************************/ unsigned char ReadDataLCD(unsigned char select){unsigned char dataR;LCD_Data = 0xff;//置位输入口，已实现输入switch(select){case 1:{LCD_CSA=1;LCD_CSB=0;break;}//左case 2:{LCD_CSA=0;LCD_CSB=1;break;}//右default: break;}LCD_RW=1;LCD_RS=1;LCD_E = 1;// 操作允许脉冲信号，高电平读出//_nop_(); //若晶振速度高，可在此作延时处理dataR = LCD_Data;LCD_E= 0;return dataR;}/***********************************************************功能：向LCD写入数据参数：WDLCD待写入的字符数据select用于选择LCD屏的左右,1选择左屏，2选择右屏***********************************************************/void WriteDataLCD(unsigned char WDLCD,unsigned char select){switch(select){case 1:{LCD_CSA=1;LCD_CSB=0;break;}//左case 2:{LCD_CSA=0;LCD_CSB=1;break;}//右default: break;}ReadStatusLCD(select);//检测忙标志LCD_RS = 1;LCD_RW = 0;LCD_Data = WDLCD;LCD_E = 1;//_nop_(); //若晶振速度高，可在此作延时处理LCD_E = 0; //下降沿写入数据//_nop_(); //若晶振速度高，可在此作延时处理}/***********************************************************功能：向LCD写入命令参数：WDLCD待写入的字符数据BusyC是否要检查忙标志位选择标志，1为进行，0为不检测select用于选择LCD屏的左右,1选择左屏，2选择右屏***********************************************************/void WriteCommandLCD(unsigned char WCLCD , unsigned char BusyC,unsigned char select) {if(BusyC) ReadStatusLCD(select);//根据需要检测忙switch(select){case 1:{LCD_CSA=1;LCD_CSB=0;break;}//左case 2:{LCD_CSA=0;LCD_CSB=1;break;}//右default: break;}LCD_Data = WCLCD;LCD_RS = 0;LCD_RW = 0;LCD_E = 1;//_nop_(); //若晶振速度高，可在此作延时处理LCD_E = 0;}/************************************************************** **************** 功能：清显示RAM区（清屏）参数：select为驱动控制器选择1为左2为右*************************************************************** **************** */void clear_LCD(unsigned char select){unsigned char i,j;for(i=0;i<8;i++){ //8页，换页清零WriteCommandLCD( 0xb8|i,1 ,select);//页面地址设置，并分别写入左右模块中WriteCommandLCD( 0x40,1 ,select);//列地址设置，设置为0列，并分别写入左右三个模块中for(j=0;j<64;j++){ //页内清零WriteDataLCD( 0 ,select);}}}/************************************************************** *************** 功能：清LCD左右屏*************************************************************** **************/ void Clr_All_Lcd(void){clear_LCD(1);clear_LCD(2);}/************************************************************** **************** 功能：LCD初始化，分为左，右模块初始化参数：select为驱动控制器选择1为左2为右*************************************************************** **************** */void LcdReset(void){unsigned char i;for(i=0;i<5;i++){WriteCommandLCD( 0xc0,0 ,R);//设置显示起始行为第一行，并分别写入左右模块中,不检测忙标志WriteCommandLCD( 0xc0,0 ,L);//_nop_(); //若晶振速度高，可在此作延时处理}WriteCommandLCD( 0xc0,1 ,R);//设置显示起始行为第一行，并分别写入左右模块中，检测忙标志WriteCommandLCD( 0xc0,1 ,L);WriteCommandLCD( 0x3f,1 ,R);//开显示设置，并分别写入左右模块中WriteCommandLCD( 0x3f,1 ,L);clear_LCD(R);//清左屏clear_LCD(L);//清右屏}/************************************************************** **************** 功能：设置数据写入或读出的地址，通过页号和列数可以唯一确定一个地址参数：Column表示列号，Page表示页号*************************************************************** **************** */void set_XY(unsigned char Column,unsigned char Page){unsigned char x,y;unsigned char select;switch (Column&0x40) //完成左右屏的判断，根据列号完成区分,<64为左屏,>=64为右屏{case 0x00: {select = 1;ReadStatusLCD(select);break;}/*为左区*/case 0x40: {select = 2;ReadStatusLCD(select);break;}/*为右区*/}x = Column&0x3F|0x40; /* col.and.0x3f.or.Set Y Address*/ y = Page&0x07|0xB8; /* row.and.0x07.or.set Page */WriteCommandLCD( y,1 ,select);//设置页面地址WriteCommandLCD( x,1 ,select);//设置列地址}/************************************************************** **************** 功能：根据地址值（页数和列号），写入数据，即写入显示缓冲区，便可以显示在LCD屏上参数：Column表示列号，Page表示页号,dataW表示待写入的数据*************************************************************** **************** */void xy_Write(unsigned char Column,unsigned char Page,unsigned char dataW){set_XY(Column,Page);LCD_RW=0;LCD_RS=1;_nop_();//若晶振速度高，可在此作延时处理LCD_Data = dataW;// 送数据_nop_(); //若晶振速度高，可在此作延时处理LCD_E = 1;_nop_(); //若晶振速度高，可在此作延时处理LCD_E= 0; // 操作允许脉冲信号，下降沿写入}/************************************************************** **************** 功能：用于显示点阵参数：Column表示列号，Page表示页号,*************************************************************** **************** */void LcmPutDots(unsigned char Column,unsigned char Page, unsigned char DotByte ){unsigned char i;i=Column;for(;Page<8;Page++){for(;Column<128;Column++){xy_Write(Column,Page,DotByte);//DotByte = ~DotByte;}Column=i;}}/************************************************************** **************** 功能：在指定列，指定页显示待显示的点阵编码,用于显示16*16点阵码参数：Column表示列号，Page表示页号,puts待显示的点阵编码首指针*************************************************************** **************** */void whiteword(unsigned char Column,unsigned char Page, const unsigned char puts[][16] ){unsigned char i,j;for(i=0;i<2;i++)//此处的2为控制点阵行数，实际点阵行数为2*8=16行，此处的16（对应的点行数）应为8的倍数{for(j=0;j<16;j++)//此处控制每行显示的列数{xy_Write(Column+j,Page+i,puts[i][j]);}}}/****************************************************************************** 功能：在指定列，指定页显示待显示指定点阵的编码参数：Column表示列号，Page表示页号,C_num为显示点阵的行数（物理行8的倍数），V_num 为列（物理列）puts待显示的点阵编码首指针*************************************************************** **************** */void WhiteWord_Com(unsigned char Column,unsigned char Page,unsigned char C_num,unsigned char V_num, unsigned char * puts){unsigned char i,j;for(i=0;i<(C_num/8);i++)//此处的2为控制点阵行数，实际点阵行数为2*8=16行，此处的16（对应的点行数）应为8的倍数{for(j=0;j<="">{xy_Write(Column+j,Page+i,*(puts+i*V_num+j));//注意地址的变化规律}}}/************************************************************** **************** 功能：绘点参数：Column表示列号，Page表示页号,C_num为显示点阵的行数（物理行8的倍数），V_num 为列（物理列）puts待显示的点阵编码首指针*************************************************************** **************** */void Drawing_dot(unsigned char x,unsigned char y){unsigned char y_byte,x_bit,y_bit,reverse_y;//此处y_byte为page，y_bit为具体行号，x_bit 为行号unsigned char dot;reverse_y=63-y;x_bit=x;y_byte=reverse_y/8;y_bit=y%8;// for(;x_bit<128;x_bit++)if(y_bit==0) dot=0x80;if(y_bit==1) dot=0x40;if(y_bit==2) dot=0x20;if(y_bit==3) dot=0x10;if(y_bit==4) dot=0x08;if(y_bit==5) dot=0x04;if(y_bit==6) dot=0x02;if(y_bit==7) dot=0x01;xy_Write(x_bit,y_byte,dot);/* reverse_y=64-y;if(y_bit==7) y_byte=y_byte-1;y_bit=y%8;if(y_byte==(-1)) break;*/}/************************************************************** **************** 功能：绘垂直直线参数：x表示列号*************************************************************** **************** */void Drawing_line_vertical(unsigned char x){xy_Write(x,0,0xff);xy_Write(x,1,0xff);xy_Write(x,2,0xff);xy_Write(x,3,0xff);xy_Write(x,4,0xff);xy_Write(x,5,0xff);xy_Write(x,6,0xff);xy_Write(x,7,0xff);}主程序.c/************************************************************** **************** ****************12864液晶屏上显示"南京绝妙科技发展有限公司，025-******** 开发板欢迎使用"，"0～9"，刷新后重显。

/*LCD.C128×64 LCD驱动程序*/#include <INTRINS.H>#include <ABSACC.H>#include "LCD.H"//定义屏幕光标（取值0～63，光标本身不可见）unsigned char LcdCursor;/*函数：LcdLightOn()功能：点亮背光灯*/void LcdLightOn(){LCD_BL = 1;}/*函数：LcdLightOff()功能：熄灭背光灯*/void LcdLightOff(){LCD_BL = 0;}/*函数：LcdGetBF()功能：读出状态位BF返回：BF=1，表示忙，不可进行任何操作BF=0，表示不忙，可以进行正常操作*/bit LcdGetBF(){unsigned char dat;dat = XBYTE[0xD002]; //XBYTE的定义见<ABSACC.H>return (bit)(dat & 0x80);}/*函数：LcdWriteCmd()功能：向LCD发送命令参数：cmd：命令字，详见器件的数据手册*/void LcdWriteCmd(unsigned char cmd){while ( LcdGetBF() );XBYTE[0xD000] = cmd;}/*函数：LcdWriteDat()功能：向LCD写入数据参数：dat，要写入的数据说明：目标地址由地址计数器AC隐含指定，写完后AC自动加1*/void LcdWriteDat(unsigned char dat){while ( LcdGetBF() );XBYTE[0xD001] = dat;}/*函数：LcdReadDat()功能：从LCD读出数据返回：读出的数据*//*unsigned char LcdReadDat(){volatile unsigned char dat;while ( LcdGetBF() );dat = XBYTE[0xD003];dat = XBYTE[0xD003]; //需要连续执行两次才能够读出真正的数据return dat;}*//*函数：LcdSetAC()功能：设置DDRAM（显示数据RAM）的AC（地址计数器）值参数：ac：地址计数器值，范围0～63*/void LcdSetAC(unsigned char ac){ac &= 0x3F;ac |= 0x80;LcdWriteCmd(ac);}/*函数：LcdClear()功能：LCD清屏，并使光标回到0*/void LcdClear(){LcdWriteCmd(0x01); //清屏命令LcdCursor = 0;}/*函数：LcdDelay()功能：延时(t*100)个机器周期*/void LcdDelay(unsigned char t){unsigned char n;do{n = 49;while ( --n != 0 );} while ( --t != 0 );}/*函数：LcdInit()功能：LCD初始化*/void LcdInit(){LcdWriteCmd(0x30); //设置基本指令集LcdDelay(3);LcdWriteCmd(0x30); //设置基本指令集（需要再执行一次）LcdDelay(1);LcdWriteCmd(0x0C); //开启显示LcdDelay(3);LcdClear(); //清屏LcdDelay(250);LcdWriteCmd(0x06); //设置进入点LcdDelay(10);}/*函数：LcdCheckAC()功能：根据光标位置调整AC*/void LcdCheckAC(){switch ( LcdCursor ){case 16:LcdSetAC(16);break;case 32:LcdSetAC(8);break;case 48:LcdSetAC(24);break;case 64:LcdCursor = 0;LcdSetAC(0);break;default:break;}/*函数：LcdPutChar()功能：显示ASCII码参数：c为可显示的ASCII码（0x20～0x7F）*/void LcdPutChar(unsigned char c){LcdWriteDat(c);LcdCursor++;LcdCheckAC();}/*函数：LcdPutHZ()功能：显示汉字参数：ch,cl：汉字编码*/void LcdPutHZ(unsigned char ch, unsigned char cl){if ( LcdCursor & 0x01 ){//显示汉字时，必须偶地址对准，即光标位置不能是奇数LcdPutChar(' '); //额外输出一个空格}LcdWriteDat(ch);LcdWriteDat(cl);LcdCursor += 2;LcdCheckAC();}/*函数：LcdPuts()功能：显示字符串参数：*s：要显示的字符串（可同时包含ASCII码和汉字）*/void LcdPuts(unsigned char *s){unsigned char ch, cl;for (;;){ch = *s++;if ( ch == '\0' ) break;if ( ch < 0x80 ){LcdPutChar(ch);}else{cl = *s++;LcdPutHZ(ch,cl);}}}。

12864使用说明一、串/并接口1.1 串口接口管脚信号*注释1：如在实际应用中仅使用并口通讯模式，可将PSB 接固定高电平。

*注释2：模块内部接有上电复位电路，因此在不需要经常复位的场合可将该端悬空。

*注释3：如背光和模块共用一个电源，可以将模块上的JA、JK 用焊锡短接。

1.2 并行接口管脚信号*注释1：如在实际应用中仅使用并口通讯模式，可将PSB 接固定高电平。

*注释2：模块内部接有上电复位电路，因此在不需要经常复位的场合可将该端悬空。

*注释3：如背光和模块共用一个电源，可以将模块上的JA、JK 用焊锡短接。

二、模块主要硬件构成说明控制器接口信号说明：2.1、RS，R/W的配合选择决定控制界面的4种模式：2.2、E信号●忙标志BFBF 标志提供内部工作情况.BF=1 表示模块在进行内部操作,此时模块不接受外部指令和数据.BF=0 时, 模块为准备状态,随时可接受外部指令和数据.利用STATUS RD 指令,可以将BF 读到DB7 总线,从而检验模块之工作状态.●字型产生ROM（CGROM）字型产生ROM（CGROM）提供8192 个此触发器是用于模块屏幕显示开和关的控制。

DFF=1 为开显示（DISPLAY ON),DDRAM 的内容就显示在屏幕上，DFF=0 为关显示（DISPLAY OFF)。

DFF 的状态是指令DISPLAY ON/OFF 和RST 信号控制的。

●显示数据RAM（DDRAM）模块内部显示数据 RAM 提供 64×2 个位元组的空间，最多可控制 4 行 16 字（64 个字）的中文字型显示，当写入显示数据 RAM 时，可分别显示 CGROM 与CGRAM 的字型；此模块可显示三种字型，分别是半角英、数字型(16*8)、CGRAM 字型及 CGROM 的中文字型。

三种字型的选择，由在 DDRAM 中写入的编码选择，在0000H—0006H 的编码中（其代码分别是 0000、0002、0004、0006 共 4 个）将选择 CGRAM 的自定义字型，02H—7FH 的编码中将选择半角英数字的字型，至于A1 以上的编码将自动的结合下一个位元组，组成两个位元组的编码形成中文字型的编码BIG5（A140—D75F），GB（A1A0-F7FFH）。

;实验目的：熟悉12864LCD的使用;12864LCD带中文字库;编程让12864LCD显示公司名称“深圳乾龙盛电子”，公司电话“5”，公司传真“6”;硬件设置：;关断所有拨码开关。

#include<p16f877a.inc>;__CONFIG_DEBUG_OFF&_CP_ALL&_WRT_HALF&_CPD_ON&_LVP_OFF&_BODEN_OFF&_PWRTE_ON&_WDT_OFF&_H S_OSC;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 PORTA,5 ;命令/数据选择#DEFINE RW PORTA,4 ;读/写选择#DEFINE E PORTA,3 ;使能信号#DEFINE PSB PORTA,2 ;并口/串口选择（H/L）#DEFINE RST PORTA,0 ;复位信号;-----------------------------------------------LCD_X EQU 30H ;页地址LCD_Y EQU 31H ;Y地址COUNT EQU 32H ;循环计数用COUNT1 EQU 33H ;循环计数用COUNT2 EQU 34H ;循环计数用POINT EQU 35H ;查表偏移地址POINT1 EQU 36H ;查表偏移地址POINT2 EQU 37H ;查表偏移地址TEMP EQU 38H ;临时寄存器TEMP1 EQU 39H ;临时寄存器;-----------------------------------------------ORG 0000H ;复位地址NOP ;ICD需要的空指令GOTO MAIN ;跳转到主程序;**********************主程序************************MAINBANKSEL TRISACLRF TRISA ;A口输出CLRF TRISD ;D口输出BANKSEL ADCON1MOVLW 06HMOVWF ADCON1 ;A口全为数字口CLRF STATUSBCF RST ;复位LCDCALL DELAY ;延时一段时间BSF RST ;清除复位信号NOPBSF PSB ;并口通讯;**************************初始化**********************MOVLW 30H ;基本指令操作CALL SEND_IMOVLW 01H ;清除显示CALL SEND_IMOVLW 06H ;指定在写入或读取时，光标的移动方向 CALL SEND_IMOVLW 0CH ;开显示，关光标，不闪烁CALL SEND_I;***********************显示汉字************************HAN_WR2CALL CLEAR_P ;清屏HAN_WR2A ;“深圳乾龙盛电子”MOVLW LOW(TAB1A)MOVWF POINTMOVLW HIGH(TAB1A)MOVWF POINT1 ;获取表格的首地址MOVLW 0eH ;数数据字节个数（7个汉字共14字节） MOVWF COUNTMOVLW 81H ;页地址CALL SEND_ICALL QUSHUHAN_WR2B ;“。