LCD1602显示数据异常-chenwei6991627的回答

LCD1602显示数据异常

2019-07-15 13:45发布

本帖最后由 hanhan1129 于 2016-6-2 19:46 编辑

目的：
用1602显示6行数据，分3页显示。每行数据输入后，按确定键保存当前输入的数据。两行输入完成后，按翻页键
翻到下一页，继续输入数据。当翻页键按到第4次时，重新显示第一页之前输入的数据，后面两页依次类推。

目前的主要问题是第4次按下时，无法显示之前输入的数据。

程序如下：
#include <REG52.H>
#include <absacc.h>
#include <intrins.h>
#define uint unsigned int
#define uchar unsigned char
#define ulong unsigned long
/******************LCD1602**********************/
sbit LCD_RS = P2^3;  //
sbit LCD_RW = P2^4;  //
sbit LCD_EN = P2^5;  //
sbit dula = P2^6;  //
sbit wela = P2^7;  //
sbit pulse  = P1^1;  //
#define LCD_DA P0
#define KEY  P3  //
/**************************/
uchar code title[6][16]=
{
"T :",
"t1:",
"t2:",
"d1:",
"d2:",
"N :"
};
/*****************************/
uchar code table1[]={" SVC TEST "};
uchar code table2[]={" Set Parameters "};

/************************/
long int data_a=0;
long int data_b=0;

ulong data_1=0;
ulong data_2=0;
ulong data_3=0;
ulong data_4=0;
ulong data_5=0;
ulong data_6=0;
ulong dispaly[10];
uchar i,j;
uchar key=0xff;
uchar a=0;
uchar b=8;
uchar x=0;
uchar flag=0;
uchar flag1=0;
uchar enterflag=0;
/****************************/
void delay(uint time)
{
uint i,j;
for(i=time;i>0;i--)
for(j=110;j>0;j--);
}
/****************************/
void DelayS(uint time)
{
delay(1000*time);
}
/****************************/
void delay_fmq(uint time)
{
uint x,y;
for(x=time;x>0;x--)
for(y=5;y>0;y--);
}
/****************************/
void write_com(uchar com)
{
LCD_RS=0;
LCD_RW=0;
LCD_EN=0;
LCD_DA=com;
delay(2);
LCD_EN=1;
delay(2);
LCD_EN=0;
}
/***************************/
void write_date(uchar date)
{
LCD_RS=1;
LCD_RW=0;
LCD_EN=0;
LCD_DA=date;
delay(2);
LCD_EN=1;
delay(2);
LCD_EN=0;
}
/***************************/
void LCD_Clear(void)
{
write_com(0x01);
delay(5);
}
/**********************/
void W_lcd(unsigned char x,unsigned char y,unsigned char Data)
{
if(y==0)
{
  write_com(0x80 + x);
}
else
{
  write_com(0xc0 + x);
}
write_date(Data);
}
/*****************/
void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s)
{
if(y==0)
{
  write_com(0x80 + x);
}
  else
{
  write_com(0xC0 + x);
}
while(*s)
  {
  write_date(*s);
      s++;
}
}
/*******************************/
void LCD_init()
{
dula=0;
wela=0;
write_com(0x38);
delay(5);
write_com(0x38);
delay(5);
write_com(0x38);
delay(5);
write_com(0x0f);
delay(5);
write_com(0x06);
delay(5);
write_com(0x01);
delay(5);
}
/********************************/
void Start(unsigned long T,unsigned long t1,unsigned long t2,unsigned long d1,unsigned long d2,unsigned long N)
{
unsigned long Low_time,High_time;
unsigned long Low_S,High_S;
unsigned int Low_Ms,High_Ms;
unsigned char n;
for(n=1;n<=N;n++)
{
  Low_time=t1+n*d1;
  High_time=t2+n*d2;
  Low_S=(T+Low_time)/1000;
  Low_Ms=(T+Low_time)%1000;
  High_S=High_time/1000;
  High_Ms=High_time%1000;
  pulse =0;
  DelayS(Low_S);
  delay(Low_Ms);
  pulse =1;
  DelayS(High_S);
  delay(High_Ms);
}
}
/**************************/
void stop()
{
pulse=1;
}
/**************************/
short keycheckdown()
{
short temp1,temp2,temp,a=0xff;
KEY=0xf0;
delay(20);
temp1=KEY;
KEY=0xff;
delay(20);
KEY=0x0f;
delay(20);
temp2=KEY;
KEY=0xff;
temp=(temp1&0xf0)|(temp2&0xf);
switch(temp)
{
   case 0xee :a=7;
break;
   case 0xed :a=8;
break;
   case 0xeb :a=9;
break;
  case 0xe7 :a=0x0a;
break;

   case 0xde :a=4;
break;
case 0xdd :a=5;
break;
   case 0xdb :a=6;
break;
case 0xd7 :a=0x0b;
break;
case 0xbe :a=1;
break;
   case 0xbd :a=2;
break;
   case 0xbb :a=3;
break;
  case 0xb7 :a=0x0c;
break;

   case 0x7e :a=0;
break;
case 0x7d :a=0x0e;
break;
case 0x7b :a=0x0f;
break;
case 0x77 :a=0x0d;
break;

  default :a=0xff;
}
return a;
}
/*********************************/
void display_a()
{
dispaly[6]=data_a%10000000/1000000;
dispaly[5]=data_a%1000000/100000;
dispaly[4]=data_a%100000/10000;
dispaly[3]=data_a%10000/1000;
dispaly[2]=data_a%1000/100;
dispaly[1]=data_a%100/10;
dispaly[0]=data_a%10;
write_com(0x80+3);

if(data_a>999999)
{
  write_date('0'+dispaly[6]);
}
if(data_a>99999)
{
  write_date('0'+dispaly[5]);
}
if(data_a>9999)
{
  write_date('0'+dispaly[4]);
}
if(data_a>999)
{
  write_date('0'+dispaly[3]);
}
if(data_a>99)
{
  write_date('0'+dispaly[2]);
}
if(data_a>9)
{
  write_date('0'+dispaly[1]);
}
write_date('0'+dispaly[0]);
}
/*********************************/
void display_b()
{
write_com(0xc0+3);
dispaly[6]=data_b%10000000/1000000;
dispaly[5]=data_b%1000000/100000;
dispaly[4]=data_b%100000/10000;
dispaly[3]=data_b%10000/1000;
dispaly[2]=data_b%1000/100;
dispaly[1]=data_b%100/10;
dispaly[0]=data_b%10;
if(data_b>999999)
{
  write_date('0'+dispaly[6]);
}
if(data_b>99999)
{
  write_date('0'+dispaly[5]);
}
if(data_b>9999)
{
  write_date('0'+dispaly[4]);
}
if(data_b>999)
{
  write_date('0'+dispaly[3]);
}
if(data_b>99)
{
  write_date('0'+dispaly[2]);
}
if(data_b>9)
{
  write_date('0'+dispaly[1]);
}
write_date('0'+dispaly[0]);
}
void display_1()
{
if(data_1<10000000&&data_1>-1)
{
  dispaly[6]=data_1%10000000/1000000;
  dispaly[5]=data_1%1000000/100000;
  dispaly[4]=data_1%100000/10000;
  dispaly[3]=data_1%10000/1000;
  dispaly[2]=data_1%1000/100;
  dispaly[1]=data_1%100/10;
  dispaly[0]=data_1%10;

  write_com(0x80+3);

if(data_1>999999)
{
write_date('0'+dispaly[6]);
}
if(data_1>99999)
{
write_date('0'+dispaly[5]);
}
if(data_1>9999)
{
write_date('0'+dispaly[4]);
}
if(data_1>999)
{
write_date('0'+dispaly[3]);
}
if(data_1>99)
{
write_date('0'+dispaly[2]);
}
if(data_1>9)
{
write_date('0'+dispaly[1]);
}
write_date('0'+dispaly[0]);
}
}
void display_2()
{
if(data_2<10000000&&data_2>-1)
{
  dispaly[6]=data_2%10000000/1000000;
  dispaly[5]=data_2%1000000/100000;
  dispaly[4]=data_2%100000/10000;
  dispaly[3]=data_2%10000/1000;
  dispaly[2]=data_2%1000/100;
  dispaly[1]=data_2%100/10;
  dispaly[0]=data_2%10;

  write_com(0x80+0x40+3);

if(data_2>999999)
{
write_date('0'+dispaly[6]);
}
if(data_2>99999)
{
write_date('0'+dispaly[5]);
}
if(data_2>9999)
{
write_date('0'+dispaly[4]);
}
if(data_2>999)
{
write_date('0'+dispaly[3]);
}
if(data_2>99)
{
write_date('0'+dispaly[2]);
}
if(data_2>9)
{
write_date('0'+dispaly[1]);
}
write_date('0'+dispaly[0]);
}
}
void display_3()
{
if(data_3<10000000&&data_3>-1)
{
  dispaly[6]=data_3%10000000/1000000;
  dispaly[5]=data_3%1000000/100000;
  dispaly[4]=data_3%100000/10000;
  dispaly[3]=data_3%10000/1000;
  dispaly[2]=data_3%1000/100;
  dispaly[1]=data_3%100/10;
  dispaly[0]=data_3%10;

  write_com(0x80+3);

if(data_3>999999)
{
write_date('0'+dispaly[6]);
}
if(data_3>99999)
{
write_date('0'+dispaly[5]);
}
if(data_3>9999)
{
write_date('0'+dispaly[4]);
}
if(data_3>999)
{
write_date('0'+dispaly[3]);
}
if(data_3>99)
{
write_date('0'+dispaly[2]);
}
if(data_3>9)
{
write_date('0'+dispaly[1]);
}
write_date('0'+dispaly[0]);
}
}
void display_4()
{
if(data_4<10000000&&data_4>-1)
{
  dispaly[6]=data_4%10000000/1000000;
  dispaly[5]=data_4%1000000/100000;
  dispaly[4]=data_4%100000/10000;
  dispaly[3]=data_4%10000/1000;
  dispaly[2]=data_4%1000/100;
  dispaly[1]=data_4%100/10;
  dispaly[0]=data_4%10;

  write_com(0x80+0x40+3);

if(data_4>999999)
{
write_date('0'+dispaly[6]);
}
if(data_4>99999)
{
write_date('0'+dispaly[5]);
}
if(data_4>9999)
{
write_date('0'+dispaly[4]);
}
if(data_4>999)
{
write_date('0'+dispaly[3]);
}
if(data_4>99)
{
write_date('0'+dispaly[2]);
}
if(data_4>9)
{
write_date('0'+dispaly[1]);
}
write_date('0'+dispaly[0]);
}
}
void display_5()
{
if(data_5<10000000&&data_5>-1)
{
  dispaly[6]=data_5%10000000/1000000;
  dispaly[5]=data_5%1000000/100000;
  dispaly[4]=data_5%100000/10000;
  dispaly[3]=data_5%10000/1000;
  dispaly[2]=data_5%1000/100;
  dispaly[1]=data_5%100/10;
  dispaly[0]=data_5%10;

  write_com(0x80+3);

if(data_5>999999)
{
write_date('0'+dispaly[6]);
}
if(data_5>99999)
{
write_date('0'+dispaly[5]);
}
if(data_5>9999)
{
write_date('0'+dispaly[4]);
}
if(data_5>999)
{
write_date('0'+dispaly[3]);
}
if(data_5>99)
{
write_date('0'+dispaly[2]);
}
if(data_5>9)
{
write_date('0'+dispaly[1]);
}
write_date('0'+dispaly[0]);
}
}
void display_6()
{
if(data_6<10000000&&data_6>-1)
{
  dispaly[6]=data_6%10000000/1000000;
  dispaly[5]=data_6%1000000/100000;
  dispaly[4]=data_6%100000/10000;
  dispaly[3]=data_6%10000/1000;
  dispaly[2]=data_6%1000/100;
  dispaly[1]=data_6%100/10;
  dispaly[0]=data_6%10;

  write_com(0x80+0x40+3);

if(data_6>999999)
{
write_date('0'+dispaly[6]);
}
if(data_6>99999)
{
write_date('0'+dispaly[5]);
}
if(data_6>9999)
{
write_date('0'+dispaly[4]);
}
if(data_6>999)
{
write_date('0'+dispaly[3]);
}
if(data_6>99)
{
write_date('0'+dispaly[2]);
}
if(data_6>9)
{
write_date('0'+dispaly[1]);
}
write_date('0'+dispaly[0]);
}
}
/*****************************/
void Keypro(uchar Funkey)
{

switch(Funkey)
{
  case 1: write_com(0x0f);
   write_com(0x10);
   break;

  case 2: write_com(0x0f);
   write_com(0x14);
   break;

  case 3:  if(enterflag==3) enterflag=0;
   if(flag==0)
   {
   if(enterflag==1)
   {
   data_1=data_a;
   data_a=0;
   display_b();
   }
   if(enterflag==2)
   {
   data_2=data_b;
   data_b=0;
   }
   }
   if(flag==1)
   {
   if(enterflag==1)
   {
   data_3=data_a;
   data_a=0;
   display_b();
   }
   if(enterflag==2)
   {
   data_4=data_b;
   data_b=0;
   }
   }
   if(flag==2)
   {
   if(enterflag==1)
   {
   data_5=data_a;
   data_a=0;
   display_b();
   }
   if(enterflag==2)
   {
   data_6=data_b;
   data_b=0;
   }
   }
   break;

  case 4:
   if(flag==3)  {flag=0;}
   if(flag==0)
   {
   LCD_Clear();
   LCD_Write_String(0, 0, Title[flag*2]);
         display_1();
   LCD_Write_String(0, 1, Title[flag*2+1]);
            display_2();
   }
   if(flag==1)
   {
   LCD_Clear();
   LCD_Write_String(0, 0, Title[flag*2]);
         display_3();
   LCD_Write_String(0, 1, Title[flag*2+1]);
            display_4();
   }
   if(flag==2)
   {
   LCD_Clear();
   LCD_Write_String(0, 0, Title[flag*2]);
         display_5();
   LCD_Write_String(0, 1, Title[flag*2+1]);
            display_6();
   }
   write_com(0x80+3);
   break;

  case 0: break;
}
}

void main()
{
LCD_init();
LCD_Write_String(0,0,Title[0]);
LCD_Write_String(0,1,Title[1]);

while(1)
{
  key=keycheckdown();
  if(0xff!=key)
  {
if(key<10)
{
if(a<7)
{
   data_a=data_a*10+key;
   b=8;
   display_a();
}
a++;
   if(b<7)
{
   data_b=data_b*10+key;
   a=8;
   display_b();
}
b++;
   }
      else
         {
switch(key)
{
   case 0x0a: a=0;b=0;    //left
         x=1;
         Keypro(x);
      break;

   case 0x0b: a=0;b=0;    //right
      x=2;
      Keypro(x);
      break;

   case 0x0c: a=0;b=0;    //down
      flag++;
      enterflag=0;
      x=4;
      Keypro(x);
      break;

   case 0x0d: a=8;b=0;    //enter
         enterflag++;
         x=3;
         Keypro(x);
      break;
}
   }
do{KEY=0xf0;}
while(KEY!=0xf0);
}
}
}

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3条回答

chenwei6991627

2019-07-15 16:14

是不是被你覆盖掉了啊

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