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📄 signal.c

📁 单片机51环境下的字库代码122*32点阵的液晶显示
💻 C
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#include <stdio.h>                   //0x30    ok;
#include <..\ATMEL\AT89X51.H>        //0x80    right;
#include <stdlib.h>                  //0x70    down;
#include <intrins.h>                 //0x60    left;
#include <string.h>                  //0x20    up;
#include <math.h>                    //0x40    empty;
#include "output.h"                  //0x10    back;

////P1_1  中断显示信号 /////////////////////////////
////P2_7  信息载入指示灯  //////////////////////////
extern char code CharTable[128L*8L];
bit flag=0,lcdflag=0,right=0,left_right=0,runflag=0;
unsigned char key0,key,key1,key2,key3,key4,key5;
char buf[9]={1,2,3,4,5,6,7,8,9},*top,*bottom,lcdtemp=1,page=0,ww=1;
int count=0;
unsigned char sig=1,out=7;
unsigned long j;


void delay(long time)/////////int time////500//////
{	
	
	long i=time,j;
   if(i==0){return;}
   else
   { 
	while(i)
	{
		j=5;				
        while(j){j--;}
		i--;
	}
   }
}
unsigned char Square(unsigned char x)
{
  unsigned char i,y=1;
  for(i=1;i<=x;i++)
  {y=y*2;}
  return y;
}
void ok(unsigned char ok)
{ while(ok!=0)
   {ok=ok-1;
     P1_7=0;P1_6=1;P1_5=1;P1_4=0;delay(1500);
	 P1_7=1;P1_6=1;P1_5=1;P1_4=1;delay(70000);//ok
   }
}

void okok(unsigned char ok)
{ while(ok!=0)
   {ok=ok-1;
     P1_7=0;P1_6=1;P1_5=1;P1_4=0;delay(1500);
	 P1_7=1;P1_6=1;P1_5=1;P1_4=1;delay(25000);//ok
   }
}

void goup(unsigned char up)
{ while(up!=0)
   {up=up-1;
    P1_7=0;P1_6=0;P1_5=1;P1_4=0;delay(1500);
	P1_7=1;P1_6=1;P1_5=1;P1_4=1;delay(25000);//up25000
   }
}

void down(unsigned char down)
{ while(down!=0)
   {down=down-1;
     P1_7=0;P1_6=0;P1_5=1;P1_4=1;delay(1500);
	 P1_7=1;P1_6=1;P1_5=1;P1_4=1;delay(25000);//down25000
   }
}

void back(unsigned char back)
{
   while(back!=0)
   {back=back-1;
  P1_7=0;P1_6=1;P1_5=1;P1_4=1;delay(1500);
  P1_7=1;P1_6=1;P1_5=1;P1_4=1;delay(25000);//back
    }
}

void abc()
{
  
  P1_7=0;P1_6=0;P1_5=0;P1_4=0;delay(1500);
  P1_7=1;P1_6=1;P1_5=1;P1_4=1;delay(25000);//shezhi30000
  delay(90000);
}

void goright(unsigned char right)
{
   while(right!=0)
   {right=right-1;
  P1_7=0;P1_6=1;P1_5=0;P1_4=1;delay(1500);
  P1_7=1;P1_6=1;P1_5=1;P1_4=1;delay(25000);//zhishi30000
    }
}
void hello(unsigned char aa)
{
   down(2);
  okok(2);down(aa-1);okok(1);
}

unsigned char pre_Key_Scan()
{
  unsigned char Key;
  P2_5=0;
  P2_6=1;

         if (P2_4==0)
	    {  Key=0x30&0xf0;  return Key;}
	    else if(P2_3==0)
	    {  Key=0x20&0xf0;  return Key;}
	    else if(P2_2==0)
	    {  Key=0x10&0xf0;  return Key;}
	    else if(P2_1==0)
	    {  Key=0x40&0xf0;  return Key;}
		
  P2_6=0; 
  P2_5=1;

        if( P2_4== 0 )
	    { Key=0x60&0xf0;  return Key;}
	    else if (P2_3== 0 )
	    { Key=0x70&0xf0;  return Key;}
	    else if (P2_2== 0 )
	    { Key=0x080&0xf0; return Key;}
	    else if (P2_1== 0 )
	    { Key=0x40&0xf0;  return Key;}
		
	 else {return 0;}
}
unsigned char Key_Scan()
{
  unsigned char Key,prekey,prekey1;
 
  P2_5=0;
  P2_6=1;

         if (P2_4==0)
	    {  Key=0x30;  delay(10);    prekey=pre_Key_Scan();delay(10);prekey1=pre_Key_Scan();delay(10);
		if( (Key=prekey)&&(Key=prekey1) ){while(P2_4==0) ;} count=0;j=0;return Key&0xf0;}
	    else if(P2_3==0)
	    {  Key=0x20; delay(10);    prekey=pre_Key_Scan();delay(10);prekey1=pre_Key_Scan();delay(10); 
        if( (Key=prekey)&&(Key=prekey1) ){while(P2_3==0);} count=0;j=0; return Key&0xf0;}
	    else if(P2_2==0)
	    {  Key=0x10;delay(10);    prekey=pre_Key_Scan();delay(10);prekey1=pre_Key_Scan();delay(10);
		if( (Key=prekey)&&(Key=prekey1) ){while(P2_2==0); }count=0;j=0;  return Key&0xf0;}
	    else if(P2_1==0)
	    {  Key=0x40;delay(10);    prekey=pre_Key_Scan();delay(10);prekey1=pre_Key_Scan();delay(10);
		if( (Key=prekey)&&(Key=prekey1) ){while(P2_1==0);} count=0;j=0;  return Key&0xf0;}
       
  P2_6=0; 
  P2_5=1;
        if( P2_4== 0 )
	    { Key=0x60;delay(10);    prekey=pre_Key_Scan();delay(10);prekey1=pre_Key_Scan();delay(10);
		if( (Key=prekey)&&(Key=prekey1) ){ while(P2_4==0); }count=0;j=0; return Key&0xf0;}
	    else if (P2_3== 0 )
	    { Key=0x70;delay(10);    prekey=pre_Key_Scan();delay(10);prekey1=pre_Key_Scan();delay(10);
		if( (Key=prekey)&&(Key=prekey1) ){while(P2_3==0);  } count=0;j=0;return Key&0xf0;}
	    else if (P2_2== 0 )
	    { Key=0x080;delay(10);    prekey=pre_Key_Scan();delay(10);prekey1=pre_Key_Scan();delay(10);
		if( (Key=prekey)&&(Key=prekey1) ){while(P2_2==0); } count=0;j=0;return Key&0xf0;}
	    else if (P2_1== 0 )
	    { Key=0x40; delay(10);    prekey=pre_Key_Scan();delay(10);prekey1=pre_Key_Scan();delay(10);
		if( (Key=prekey)&&(Key=prekey1) ){while(P2_1==0);}  count=0;j=0;return Key&0xf0;}
      
	 else {return 0;}
}
/*
LCDWriteCom1(unsigned char com)
{
	bit flag;
	A0  =  0;
	RW=1;
	do{
		P0=0xff;
		CS1=0;
		flag=P0_7;
		CS1=1;										
	}while(flag);
	RW=0;
	P0=com;
	CS1=0;
	CS1=1;
}
//向主LCD写数据 /
LCDWriteDat1(unsigned char dat)
{
	bit flag;
	A0  =  0;
	RW=1;
	do{
		P0=0xff;
		CS1=0;
		flag=P0_7;
		CS1=1;										
    }while(flag);		
	A0=1;
	RW=0;
	P0=dat;
	CS1=0;
	CS1=1;
}
unsigned char LCDReadDat1()
{
	bit flag;
	long i; 
	unsigned char dat;
	A0  =  0;
	RW=1;
	do{
		P0=0xff;
		CS1=0;
		flag=P0_7;		
		CS1=1;										
		i++;
	}while(flag);
	CS1=0;
	A0=1;
	RW=1;
	dat=P0;
	CS1=1;
	RW=0;
	P0=0xff;
	RW=1;
	CS1=0;
	dat=P0;
	CS1=1;
	return dat;

}
//向从LCD写命令 
LCDWriteCom2(unsigned char com)
{
	bit flag;
	A0  =  0;
	RW=1;
	do{
		P0=0xff;
		CS2=0;
		flag=P0_7;
		CS2=1;										
	}while(flag);
	RW=0;
	P0=com;
	CS2=0;
	CS2=1;
}
//向从LCD写数据 
LCDWriteDat2(unsigned char dat)
{
	bit flag;
	A0  =  0;
	RW=1;
	do{
		P0=0xff;
		CS2=0;
		flag=P0_7;
		CS2=1;										
	}while(flag);		
	A0=1;
	RW=0;
	P0=dat;
	CS2=0;
	CS2=1;
}
unsigned char LCDReadDat2()
{
	bit flag;
	long i;
	unsigned char dat;
	A0  =  0;
	RW=1;
	do{
	
		P0=0xff;
		CS2=0;
		flag=P0_7;
		CS2=1;										
        i++;
	}while(flag);		
	CS2 = 0;
	A0=1;
	RW=1;
	dat=P0;
	CS2 = 1;

	RW=0;
	P0=0xff;
	RW=1;
	CS2 = 0;
	dat=P0;
	CS2=1;
	return dat;

}
//初始化LCD
void LCD_Init()
{
	LCDWriteCom1(0xe2);	LCDWriteCom2(0xe2);
	LCDWriteCom1(0xa4); LCDWriteCom2(0xa4);	
	LCDWriteCom1(0xa9);	LCDWriteCom2(0xa9);	
	LCDWriteCom1(0xa0);	LCDWriteCom2(0xa0);	
	LCDWriteCom1(0xc0);	LCDWriteCom2(0xc0);
	LCDWriteCom1(0xaf); LCDWriteCom2(0xaf);
}
void LCDClear()
{
	unsigned char i,j;
	for(i=0;i<4;i++)
	{
		LCDWriteCom1(0xb8|i);
		LCDWriteCom2(0xb8|i);
		LCDWriteCom1(0);
		LCDWriteCom2(0);
		for(j=0;j<80;j++)
		{
   		LCDWriteDat1(0x0);
		LCDWriteDat2(0x0);
		}				
	}
}
//在x,y点显示一个点
void LCDDrawPoint(unsigned char x,unsigned char y )   
{
	unsigned char dat,temp;
									//设置页
	temp=(y>>3);
	LCDWriteCom1(0xb8|(temp&3));
	LCDWriteCom2(0xb8|(temp&3));

	if(x<MAXCOL)
	{	
		LCDWriteCom1(x);						//设置行
		LCDWriteCom1(0xe0);			//打开改写模式
		dat=LCDReadDat1();					//读数据
//		if(COLOR==0)dat=dat&(!(1<<(y%8)));	//计算要写数据
			dat=dat|(1<<(y%8));
		LCDWriteDat1(dat);					//写数据
		LCDWriteCom1(0xee);			//关闭改写模式

	}
	else
  if(x>MAXCOL)
	{	LCDWriteCom2(x-MAXCOL);				//设置行
		LCDWriteCom2(0xe0);				//打开改写模式
		dat=LCDReadDat2();					//读数据
	//	if(COLOR==0)		dat=dat&(!(1<<(y%8)));//计算要写数据
				dat=dat|(1<<(y%8));	
		LCDWriteDat2(dat);			//写数据
		LCDWriteCom2(0xee);				//关闭改写模式
	}
}

//字符显示
void LCDDrawDatM2(char col, char i, char *pdat)
{
	char j;
	unsigned char length;

	length = 8;
	if ((col+length) < MAXCOL)
	{
		 LCDWriteCom1(col);
		LCDWriteCom1(0xb8|(i&3));	//设定显示页
		for(j=col; j<col+length; j++)
			LCDWriteDat1(*(pdat+(j-col)));
		return;
	}
	if (((col+length) >= MAXCOL)&&(col<MAXCOL))
	{
		LCDWriteCom1(col);
		LCDWriteCom1(0xb8|(i&3));	//设定显示页
		for(j=col; j<MAXCOL; j++)
			LCDWriteDat1(*(pdat+(j-col)));
		
		LCDWriteCom2(0);
		LCDWriteCom2(0xb8|(i&3));	//设定显示页
		for(j=0; j<MAXCOL; j++)
		{
			LCDWriteDat2(*(pdat+(MAXCOL-col+j)));
			if ((MAXCOL-col+j) >= length)
				break;
		}
		return;
	}
	else
	{
		LCDWriteCom2(col-MAXCOL);
		LCDWriteCom2(0xb8|(i&3));	//设定显示页
		for(j=col-MAXCOL; j<MAXCOL; j++)
		{
			LCDWriteDat2(*(pdat+(j-col+MAXCOL)));
			if ((j-col+MAXCOL) >= length)
				break;
		}
	}
}
//反字符显示
void LCDDrawDatM2_Opposition(char col, char i, char *pdat)
{
	char j;
123

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