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標題: LCD12864簡易計算器 [打印本頁]

作者: LCH020105 時間: 2021-12-21 19:29
標題: LCD12864簡易計算器
#include<reg52.h>
#define K P2

typedef unsigned int u16;
typedef unsigned char u8;

sbit RS = P1^0;
sbit RW = P1^1;
sbit E =  P1^2;

void delay(int i)
{
while(i--);

}

int a;
void AJ()       //按鍵函數
{

int b=0;
K=0x0f;

  if(K!=0x0f)
{
       delay(1000);
   if(K!=0x0f)
      {
   switch(K)
   {
      case 0x07: a=0;break;
case 0x0b: a=1;break;
case 0x0d: a=2;break;
case 0x0e: a=3;break;
   }
   }
      K=0xf0;
   if(K!=0xf0)
         {
             delay(1000);
            if(K!=0xf0)
            {
            switch(K)
      {
            case 0x70: a=a;break;
               case 0xb0: a=a+4;break;
         case 0xd0: a=a+8;break;
         case 0xe0: a=a+12;break;
        }
         }
   }
         while(b<50&&K!=0xf0);
      {
   delay(100);
   b++;
      }
   }
}

u8 code  SHU[]={0x31,0x32,0x33,0x2b,0x34,0x35,0x36,0x2d,0x37,0x38,0x39,0x2a,0x2f,0x30,0x3d};
/*
{  1  2  3 +
4  5  6 -
7  8  9 *
/  0  =
}
*/
//u8 code FU[]={0x2b,0x2d,0x2a,0x2f}; // + - * /

/*LCD12864程序函數*/
void LCD12864_SetPos(unsigned char x,unsigned char y) ;
void LCD12864_WDAT(unsigned char dat);
void LCD12864_WCMD(unsigned char cmd);
void LCD12864_BusyCheck();
void LCD12846_DisHZ_Str(unsigned char *s);

void  YX()
  {
  char m[100];    //m為第一個數
char n[100];    //n為第二個數
   int i,j,b=0,c=0;
   int q,h;
   int d=-1;
   int s1=0,s2=0;
for(i=2;i>1;i++)
   {
   LCD12864_SetPos(0,b);
   b++;
   if(a)
   AJ();
   d=a;
   if(d!=-1)
   {
   LCD12864_WDAT(SHU[a]);
   if(a==15)
   {
      for(;s1>0;s1--)
   {
      q=q*10+m[s1-1];
   }
   for(;s2>0;s2--)
   {
   h=h*10+n[s2-1];
   }
   if(j==3)
   {
   LCD12864_WDAT(SHU[14]);
   LCD12864_WDAT(q+h);
   }
   else if(j==7)
   {
   LCD12864_WDAT(SHU[14]);
   LCD12864_WDAT(q-h);
   }
      else if(j==11)
   {
   LCD12864_WDAT(SHU[14]);
   LCD12864_WDAT(q*h);
   }
      else if(j==12)
   {
   LCD12864_WDAT(SHU[14]);
   LCD12864_WDAT(q/h);
   }
   }
   if(a!=3&&a!=7&&a!=11&&a!=12)
   {
   m[i-2]=a;
s1++;
   }
   else
   {
   c=1;
   i=2;
   j=a;
   }
         if(c==1)
{
n[i-2]=a;
s2++;
}

}

   a=16;
   if(a==15)
   {
         LCD12864_WCMD(0x0c);
         LCD12864_WCMD(0x30);
   }
delay(10000);
d=-1;
}
   }
void main()
{

   LCD12864_WCMD(0x0c);
LCD12864_WCMD(0x30);

// LCD12846_DisHZ_Str("歡迎使用科學計算器");
// LCD12864_SetPos(0,0);

   YX();
}
// LCD12864_WCMD(0x0c);
// LCD12864_WCMD(0x30);
//  LCD12864_SetPos(0,b);
// b++;
/*       AJ();
   m[j]=a;
   j++;
   //for(i=1;i>1;i++)
   LCD12864_WDAT(SHU[a]);
   delay(1000);
*/

//    AJ();
//    LCD12864_SetPos(0,0+b);
// b++;
// LCD12864_WDAT(SHU[a]);
// if(a==14)
// {
// LCD12864_SetPos(1,0);


/*LCD12864_WDAT(SHU[0]);
LCD12864_WDAT(0x04);
LCD12864_WDAT(0x05 + '0'); //'0' = 48 = 0x30
LCD12864_WDAT(0x06);
LCD12864_SetPos(1,0);
LCD12846_DisHZ_Str("李朝賀");
*/
/* while(1)
{
if(a==15)
break;
}
  */

void LCD12864_BusyCheck()
{
unsigned char temp;
P0 = 0xff;
RS = 0;
RW = 1;
while(1)
{
E = 1;
temp = P0;
E = 0;
if((temp & 0x80) == 0)
break;
}
}

void LCD12864_WCMD(unsigned char cmd)
{
LCD12864_BusyCheck();
RS = 0;
RW = 0;
P0 = cmd;
E = 1;
E = 0;
}

void LCD12864_WDAT(unsigned char dat)
{
LCD12864_BusyCheck();
RS = 1;
RW = 0;
P0 = dat;
E = 1;
E = 0;
}

void LCD12864_SetPos(unsigned char x,unsigned char y)
{
unsigned char pos;
switch(x)
{
case 0 : x = 0x80;break;
case 1 : x = 0x90;break;
case 2 : x = 0x88;break;
case 3 : x = 0x98;break;
default:break;
}
pos = x + y; //x范圍0-3  y范圍0-7
LCD12864_WCMD(pos);
}

void LCD12846_DisHZ_Str(unsigned char *s)
{
while(*s)
LCD12864_WDAT(*s++);

}

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