单片机c语言调试菜单,单片机+LCD12864液晶简易菜单程序-c语言

最新推荐文章于 2025-05-23 12:33:20 发布

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最新推荐文章于 2025-05-23 12:33:20 发布

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文章标签：单片机c语言调试菜单

该程序实现了液晶显示屏的初始化、位置设置、字符显示、菜单绘制等功能。通过Key1和Key2按键控制，可以滚动显示多个字符串，并且有清除屏幕和反白显示的优化。程序使用了中断和延时函数进行控制。

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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Index_Num 数组元素最大序号

Index 数组元素当前序号

Index_P 选中项序号

Index_P_Pre 上一选中项序号，用于快速清理上次所画下的图案

#include

#define delayNOP(); {_nop_();_nop_();_nop_();_nop_();};

#define LCD_data P0 //数据口

#define Index_Num 8

typedef unsigned char uchar;

typedef unsigned int uint;

sbit Key1 = P1^0;

sbit Key2 = P1^1;

sbit LCD_RS = P2^6; //寄存器选择输入 cs

sbit LCD_RW = P2^5; //液晶读/写控制 sid

sbit LCD_EN = P2^7; //液晶使能控制 clk

sbit LCD_PSB = P3^2; //串/并方式控制

sbit LCD_RST = P3^7; //液晶复位端口

bdata uchar DataBuf;

uint Index,Index_P_Pre;

uint Index_P=0;

uchar code Weibo[][16]={"hello","呀咦晗昱","weibo.com","/maixianyu","blog.163.com","maixianyu@126",

"123","456","789"};

////////////////////////////////////////////// 200us

void delay(int ms)

{

uchar t;

while(ms--)

{

for(t=0; t<20; t++) ;

}

//////////////////////////////////////////////////////////////////

void Lcd_Write_8bit(uchar msg){

uint i;

uchar DataBuffer;

DataBuffer=msg;

for(i=0;i<8;i++){

LCD_RW=(bit)(DataBuffer&0x80);

LCD_EN=1;

_nop_();

LCD_EN=0;

_nop_();

DataBuffer<<=1;

}

/////////////////////////////////////////

uchar Lcd_Rec(uint RS){

uint i;

uchar Data_H,Data_L;

LCD_RS=1;

if(RS)

Lcd_Write_8bit(0xfe);

else

Lcd_Write_8bit(0xfc);

delayNOP();

for(i=0;i<8;i++){

LCD_EN=1;

Data_H=(Data_H<<1)|LCD_RW;

LCD_EN=0;

}

delayNOP();

for(i=0;i<8;i++){

LCD_EN=1;

Data_L=(Data_L<<1)|LCD_RW;

LCD_EN=0;

}

LCD_RS=0;

DataBuf=(Data_H<<4)|Data_L;

return DataBuf;

}

/////////////////////////////////////////

bit Lcd_Busy(){

return Lcd_Rec(0)&0x80;

}

/////////////////////////////////////////

void Lcd_Write(uchar msg,uint dc){ //if dc equals 0,msg is a kind of cmd.

while(Lcd_Busy());

if(dc==0)

DataBuf=0xf8;

else

DataBuf=0xfa;

delayNOP();

LCD_RS=1;

Lcd_Write_8bit(DataBuf);

delayNOP();

DataBuf=msg&0xf0;

Lcd_Write_8bit(DataBuf);

delayNOP();

DataBuf=(msg<<4)&0xf0;

Lcd_Write_8bit(DataBuf);

LCD_RS=0;

}

////////////////////////////////////////////////////

void Disp_black() //清理上一次画下的痕迹

{

uchar i,j;

Lcd_Write(0x34,0); //写数据时,关闭图形显示

if(Index_P_Pre<2){

for(i=0+16*Index_P_Pre; i<16+16*Index_P_Pre; i++)

{

Lcd_Write(0x80+i,0);

Lcd_Write(0x80,0);

for(j=0;j<16;j++)

Lcd_Write(0x00,1);

}

}else{

for(i=0+16*(Index_P_Pre-2);i<16+16*(Index_P_Pre-2);i++)

{

Lcd_Write(0x80+i,0);

Lcd_Write(0x88,0);

for(j=0;j<16;j++)

Lcd_Write(0x00,1);

}

Lcd_Write(0x36,0); //写完数据,开图形显示

}

void convertChar(uchar CX) // 反白函数

{

uchar halfLineCnt, basicBlock,lcdPosX,lcdPosY;

// if(f==1)

Disp_black(); //清绘图区

lcdPosY = 0x80;

if (CX == 0)

{

CX = 0x80;

halfLineCnt = 16;

}

else if (CX == 1)

{

CX = 0x80;

halfLineCnt = 32;

}

else if (CX == 2)

{

CX = 0x88;

halfLineCnt = 16;

}

else if (CX == 3)

{

CX = 0x88;

halfLineCnt = 32;

}

lcdPosX = CX;

for (; halfLineCnt != 0; halfLineCnt--)

{

basicBlock = 16;

Lcd_Write(0x34,0);

Lcd_Write(lcdPosY,0);

Lcd_Write(lcdPosX,0);

Lcd_Write(0x30,0);

for (;basicBlock != 0; basicBlock--)

{

if (halfLineCnt > 16)

{

Lcd_Write(0x00,1);

}

else

{

Lcd_Write(0xff,1);

}

lcdPosY++;

}

Lcd_Write(0x36,0);

Lcd_Write(0x30,0);

}

///////////////////////////////////////////////////

void Lcd_Pos(uchar x,uchar y){

uchar pos;

if(x==1)

{x=0x80;}

else if(x==2)

{x=0x90;}

else if(x==3)

{x=0x88;}

else if(x==4)

{x=0x98;}

pos=x+y;

Lcd_Write(pos,0);

}

///////////////////////////////////////////

void Lcd_Menu(uint Head){

uint j,i;

uint Index_End=Head+3;

// if(Index_End<=Index_Num){

for(j=0;Head<=Index_End;Head++,j++){

Lcd_Pos(j+1,0);

i=0;

while(i<15){

if(Weibo[Head][i]!=0)

Lcd_Write(Weibo[Head][i++],1);

else{

Lcd_Write(0x20,1);

i++;

}

delayNOP();

}

// }

}

///////////////////////////////////////////

void Lcd_Init(void){

LCD_PSB=0;

LCD_RST=0;

LCD_RS=0;

LCD_RW=1;

LCD_EN=0;

delay(2);

LCD_RST=1;

delay(2);

Lcd_Write(0x30,0); //ordinary cmd

delay(2);

Lcd_Write(0x0c,0); //how to show

delay(2);

Lcd_Write(0x01,0); //clear

delay(2);

}

/////////////////////////////////////////

void main(void){

Lcd_Init();

Key1=1;

Lcd_Menu(Index);

convertChar(Index_P);

while(1){

if(Key1==0&&Index>=0){

delay(5);

if(Key1==0&&Index>=0){

if(Index_P==0&&Index>0)

Lcd_Menu(--Index);

if(Index_P>0){

Index_P_Pre=Index_P;

convertChar(--Index_P);

}

if(Key2==0&&Index_P<=3){

delay(5);

if(Key2==0&&Index_P<=3){

if(Index_P==3&&Index

Lcd_Menu(++Index);

if(Index_P<3){

Index_P_Pre=Index_P;

convertChar(++Index_P);

}