justhomework/MCU/MCU_REAL _FINAL/display.c

#include <reg52.h>
#include "display.h"
#include "delay.h"
#include "img.h"

// DB	 P1
// CTL P3

sbit RS = P3 ^ 0;
sbit RW = P3 ^ 1;
sbit E = P3 ^ 2;
sbit CSA = P3 ^ 4;
sbit CSB = P3 ^ 5;




void write()
{
  RW = 0;
  E = 0;
  E = 1;
  delay(2);
  E = 0;
}

void drawNUMBER()
{
	unsigned int j;
  for(j =0 ; j < 64; j++)
    {


      CSA = 1;
      CSB = 0;
      RS = 0;
      RW = 0;
      P1 = 0xb8 + 2;
      write();
      P1 = 0X40 + j;
      write(); //ҳ2<D2B3><32>j<EFBFBD><6A>A

      RS = 1;
      RW = 0;
      P1 = NUMBER_PAGE0[j - 1];
      write();

      RS = 0;
      RW = 0;
      P1 = 0xb8 + 3;
      write();
      P1 = 0X40 + j;
      write(); //ҳ3<D2B3><33>j<EFBFBD><6A>A

      RS = 1;
      RW = 0;
      P1 = NUMBER_PAGE1[j - 1];
      write();


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


      CSA = 0;
      CSB = 1;
      RS = 0;
      RW = 0;
      P1 = 0xb8 + 2;
      write();
      P1 = 0X40 + j;
      write(); //ҳ2<D2B3><32>j<EFBFBD><6A>A

      RS = 1;
      RW = 0;
      P1 = NUMBER_RPAGE0[j - 1];
      write();

      RS = 0;
      RW = 0;
      P1 = 0xb8 + 3;
      write();
      P1 = 0X40 + j;
      write(); //ҳ3<D2B3><33>j<EFBFBD><6A>A

      RS = 1;
      RW = 0;
      P1 = NUMBER_RPAGE1[j - 1];
      write();


    }
}

void drawNAME()
{
  unsigned int j;

  for(j = 0; j < 48; j++)
    {


      CSA = 1;
      CSB = 0;
      RS = 0;
      RW = 0;
      P1 = 0xb8 + 0;
      write();
      P1 = 0X40 + j;
      write(); //ҳ0<D2B3><30>j<EFBFBD><6A>A

      RS = 1;
      RW = 0;
      P1 = NAME_PAGE0[j - 1];
      write();

      RS = 0;
      RW = 0;
      P1 = 0xb8 + 1;
      write();
      P1 = 0X40 + j;
      write(); //ҳ1<D2B3><31>j<EFBFBD><6A>A

      RS = 1;
      RW = 0;
      P1 = NAME_PAGE1[j - 1];
      write();


    }
}

void clear()
{
  unsigned int i, j;
  CSA = 1;
  CSB = 0;
  for(i = 0; i < 8; i++)
    {
      RS = 0;
      RW = 0;
      P1 = 0xb8 + i;
      write();
      P1 = 0X40;
      write();

      for(j = 0; j < 64; j++)
        {
          RS = 1;
          RW = 0;
          P1 = 0x00;;
          write();
        }
    }
  CSA = 0;
  CSB = 1;
  for(i = 0; i < 8; i++)
    {
      RS = 0;
      RW = 0;
      P1 = 0xb8 + i;
      write();
      P1 = 0X40;
      write();

      for(j = 0; j < 64; j++)
        {
          RS = 1;
          RW = 0;
          P1 = 0x00;
          write();
        }
    }
}


void miniclear()
{
  unsigned int i, j;
  CSA = 1;
  CSB = 0;
  for(i = 0; i < 2; i++)
    {
      RS = 0;
      RW = 0;
      P1 = 0xb8 + i;
      write();
      P1 = 0X40;
      write();

      for(j = 0; j < 64; j++)
        {
          RS = 1;
          RW = 0;
          P1 = 0x00;;
          write();
        }
    }
  CSA = 0;
  CSB = 1;
  for(i = 0; i < 2; i++)
    {
      RS = 0;
      RW = 0;
      P1 = 0xb8 + i;
      write();
      P1 = 0X40;
      write();

      for(j = 0; j < 64; j++)
        {
          RS = 1;
          RW = 0;
          P1 = 0x00;
          write();
        }
    }
}
void displayInit()
{
  E = 0;
  RS = 1;
  CSA = 1;
  CSB = 0;
  RS = 0;
  P1 = 0X3F;
  write();

  CSA = 0;
  CSB = 1;
  RS = 0;
  P1 = 0X3F;
  write();
}

void test()
{
  unsigned int i, j;
  CSA = 1;
  CSB = 0;
  for(i = 0; i < 8; i++)
    {
      RS = 0;
      RW = 0;
      P1 = 0xb8 + i;
      write();
      P1 = 0X40;
      write();

      for(j = 0; j < 64; j++)
        {
          RS = 1;
          RW = 0;
          P1 = 0x55;
          write();
        }
    }
  CSA = 0;
  CSB = 1;
  for(i = 0; i < 8; i++)
    {
      RS = 0;
      RW = 0;
      P1 = 0xb8 + i;
      write();
      P1 = 0X40;
      write();

      for(j = 0; j < 64; j++)
        {
          RS = 1;
          RW = 0;
          P1 = 0x55;;
          write();
        }
    }
}