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標題: stc89c52 lcd1602 秒表 [打印本頁]

作者: 朝朝1 時間: 2021-1-21 15:44
標題: stc89c52 lcd1602 秒表
本帖最后由朝朝1 于 2021-1-26 16:15 編輯

#include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
#define LCD_data P0
sbit LCD_RS=P1^0;
sbit LCD_RW=P1^1;
sbit LCD_EN=P2^5;
sbit LCD_PSB=P1^3;
sbit dula=P2^0;
sbit wela=P2^1;
sbit cs88=P2^2;
sbit key=P3^4;

void delayms(unsigned int xms)
{
  unsigned i,j;
      for(i=xms;i>0;i--)
         for(j=110;j>0;j--);
}
void cmg88()
{
dula=0;
      P0=0x00;
      dula=0;
      cs88=0x00;
      P0=0x00;
}
#define delayNOP();{_nop_();_nop_();_nop_();_nop_();};
uchar IRDIS[2] ;
uchar IRCOM[4] ;
void delay0 (uchar x); //x*0.14MS
void beep();
void dataconv() ;
void lcd_pos(uchar X,uchar Y);
void delay(int ms)
{
while (ms--)
{
uchar i;
for (i=0;i<250;i++)
{
_nop_();
_nop_();
_nop_();
_nop_();
}
}}
bit lcd_busy()
{
bit result ;
LCD_RS=0;
LCD_RW=1;
LCD_EN=1;
delayNOP();
result = (bit)(P0&0x80);
LCD_EN=0;
return (result) ;
}
void lcd_wcmd(uchar cmd)
{
while(lcd_busy()) ;
LCD_RS=0;
LCD_RW=0;
LCD_EN=0;
_nop_();
_nop_();
P0=cmd;
delayNOP ()
LCD_EN=1;
delayNOP ()
LCD_EN=0;
}
void lcd_wdat(uchar dat)
{
while(lcd_busy()) ;
LCD_RS=1;
LCD_RW = 0;
LCD_EN=0;
P0=dat;
delayNOP () ;
LCD_EN=1;
delayNOP ();
LCD_EN=0;
}
void charter(unsigned char y,unsigned char x,unsigned char dat)
{

      if(y==1)
            lcd_wcmd(0x80|x);
      if(y==2)
      lcd_wcmd(0x90|x);
      if(y==3)
            lcd_wcmd((0x80|x)+8);
      if(y==4)
   lcd_wcmd((0x90|x)+8);

lcd_wdat(dat);
}
void gotoxy(unsigned char y, unsigned char x,uchar *str)
{
      if(y==1)
            lcd_wcmd(0x80|x);
      if(y==2)
      lcd_wcmd(0x90|x);
      if(y==3)
            lcd_wcmd((0x80|x)+8);
      if(y==4)
   lcd_wcmd((0x90|x)+8);
   while(*str!='\0')
      {
            lcd_wdat(*str);
            str++;
      }
}
/*
void print(uchar *str)
{
      while(*str!='\0')
      {
            lcd_wdat(*str);
            str++;
      }
}
*/
void lcd_init()
{
LCD_PSB=1;
lcd_wcmd(0x34) ;
delay(5) ;
lcd_wcmd(0x30) ;
delay(5) ;
lcd_wcmd(0x0c) ;
delay(5) ;
lcd_wcmd(0x01) ;
delay(5) ;
}
main()
{

unsigned char i;
lcd_init();

while(1)
{
charter(1,0,'0'+3);
//lcd_wcmd(0x80+7);
//lcd_wdat('0'+i);
//delayms(5);

//if(key==0)
//{
//delayms(5);
// if(key==0)
// i=3;

// while(!key);
// }
gotoxy(3,0,"考研路上不孤單");

}
}
void Read_Busy()
{
      uchar busy;
      P0 = 0xff;
      RS = 0;
      RW = 1;
      do
      {
            EN = 1;
            busy = P0;
            EN = 0;
      }while(busy & 0x80);
}
//?LCD1602??????
void Write_Cmd(uchar cmd)
{
      Read_Busy();//???
      RS = 0;
      RW = 0;
      P0 = cmd;
      EN = 1;
      EN = 0;
}
//???????
void Write_Dat(uchar dat)
{
      Read_Busy();
      RS = 1;
      RW = 0;
      P0 = dat;
      EN = 1;
      EN = 0;
}
void charter(unsigned char x,unsigned char y,unsigned char dat)
{
if(y==0)
{
Write_Cmd(0x80+x);
}
else
{
Write_Cmd(0xc0+x);

}
Write_Dat( dat);
}
void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s)
{
if (y == 0)
      {
Write_Cmd(0x80 + x);
      }
else
      {
Write_Cmd(0xC0 + x);
      }
while (*s)
      {
Write_Dat( *s);
s ++;
      }
}
void lcdinit()
{
Write_Cmd(0x38);
Write_Cmd(0x08); /*????*/
Write_Cmd(0x01); /*????*/
Write_Cmd(0x06); /*????????*/
Write_Cmd(0x0C); /*????????*/
}
void Timer0Init(void)             //50??@11.0592MHz
{
      TMOD = 0x01;             //???????
   TH0=0xdc;             //10ms??
TL0=0x00;
            ET0=1;
      EA=1;
      TR0 = 0;             //???0????

}
void beep()
{
unsigned char y;
for (y=0;y<180;y++)
{
   BEEP=!BEEP;             //BEEP??
      delayms(70);
}
BEEP=1;                   //?????
}

void main()
{
unsigned char num,num1,u;
lcdinit();
Timer0Init();
      LCD_Write_String(0,1,"time:");
      LCD_Write_String(5,0,"welcome");
      LCD_Write_String(5,1,"00:00:00:00");
while(1)
{

if(key==0)
{
      delayms(50);
if(key==0)
num=num+1;
while(!key);
}

switch(num)
{
      case 1:TR0=1;
      LCD_Write_String(0,0,"begin count 1");
            delayms(5);
      break;
      case 2:TR0=0;
            LCD_Write_String(0,0,"pause count 2");
      delayms(5);
      break;
      case 3:TR0=1;
            LCD_Write_String(0,0,"begin count 3");
      delayms(5);
      break;
      case 4:TR0=0;
            LCD_Write_String(0,0,"pause count 4");
      delayms(5);
      break;
}
if(key1==0)
{

LCD_Write_String(5,1,"00:00:00:00");
}

}
}

void timer() interrupt 1
{
TH0=0xdc;
TL0=0x00;
  a++;
      charter(15,1,'0'+a);
if(a==10)
{

      a=0;
      b++;
      x=b%10;

            charter(14,1,'0'+x);
}
if(b==10)
{
      b=0;
c++;
      y=c%10;
      charter(12,1,'0'+y);

}
if(c==10)
{
c=0;

      d++;
      z=d%10;
      charter(11,1,'0'+z);
}
if(d==6)
{
d=0;
            charter(11,1,'0'+0);
      e++;
      m=e%10;
      charter(9,1,'0'+m);
}
if(e==10)
{
e=0;
      f++;
      n=f%10;
            charter(8,1,'0'+n);
}

}

作者: 1045964948 時間: 2021-2-1 02:08
沒有原理圖嗎

作者: 朝朝1 時間: 2021-2-2 10:37

1045964948 發表于 2021-2-1 02:08
沒有原理圖嗎

沒有因為是在自己的板子上寫的不需要仿真所以沒有

歡迎光臨 (http://www.zg4o1577.cn/bbs/)