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You are here: Home / Replies / check

check

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Microcontroller › 8051 › interfacing › check

October 5, 2011 at 5:41 pm #6679
Ashish Angural
Participant

check this…

 

 

#include<reg51.h>
 
#include<intrins.h>
 
#define data P1
 
sbit S1=P3^0;
sbit S2=P3^1;
sbit S3=P3^2;
sbit motor=P3^3;
sbit S4=P3^4;
 
sbit RS=P2^0;
sbit RW=P2^1;
sbit E=P2^2;
 
sbit A1=P0^0;
sbit B1=P0^1;
sbit C1=P0^2;
sbit D1=P0^3;
 
void ms_delay(unsigned int a)
{
 unsigned int i,j;
 for(i=0;i<a;i++)
 {
  for(j=0;j<70;j++)
  {
   _nop_();
  }
 }
}
 
void sec_delay(unsigned int a)
{
 unsigned int i,j;
 for(i=0;i<a;i++)
 {
  for(j=0;j<1000;j++)
  {
   ms_delay(1);
  }
 }
}
 
void ibit_left()
{
 unsigned char i,a;
 while(1);
 {
  if(S1==0)
  {
   a=0xfe;
   for(i=0;i<8;i++)
   {
P1=a;
a=a<<1;
a=a+0x01;
ms_delay(500);
   }
  }
 }
}
 
void right_shift()
{
 unsigned char i,a;
 while(1);
 {
  if(S2==0)
  {
   a=0xfe;
   for(i=0;i<8;i++)
   {
P1=a;
a=a>>1;
ms_delay(500);
   }
  }
 }
}
 
void ibit_right()
{
 unsigned char i,a;
 while(1);
 {
  if(S3==0)
  {
   a=0xfe;
   for(i=0;i<8;i++)
   {
P1=a;
a=a>>1;
a=a+0x80;
ms_delay(500);
   }
  }
  }
}
 
void even_segments()
{
 unsigned char i,a[10]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x98};
 while(1);
 {
  if(S1==0)
  {
   for(i=0;i<=9;i++)
   {
if(i%2==0)
P2=a;
ms_delay(500);
   }
  }
 }
}
 
void odd_segments()
{
 unsigned char i,a[10]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x98};
 while(1);
 {
  if(S2==0)
  {
   for(i=0;i<=9;i++)
   {
if(i%2==1)
P2=a;
ms_delay(500);
   }
  }
 }
}
 
void numbers()
{
 unsigned char i,a[10]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x98};
 while(1);
 {
  if(S3==0)
  {
   for(i=0;i<=9;i++)
   {
    P2=a;
    ms_delay(500);
   }
  }
 }
}
 
 
void lcd_cmd()
{
 data=ACC;
 RS=0;
 RW=0;
 E=1;
 ms_delay(10);
 E=0;
}
 
void lcd_data()
{
 data=ACC;
 RS=1;
 RW=0;
 E=1;
 ms_delay(10);
 E=0;
}
 
void lcd_initialize()
{
 ACC=0x38;
 lcd_cmd();
 ACC=0x38;
 lcd_cmd();
 ACC=0x38;
 lcd_cmd();
 ACC=0x06;
 lcd_cmd();
 ACC=0x0C;
 lcd_cmd();
}
 
void lcd_puts(unsigned char *a)
{
 while(*a!=’’)
 {
  ACC=*a;
  lcd_data();
  a++;
 }
}
 
void PWM(unsigned char Ton)
{
 motor=0;
 ms_delay(Ton);
 motor=1;
 ms_delay(100-Ton);
}
 
void clkwise()
{
 unsigned char i;
 for(i=0;i<=5;i++)
 {
  A1=0;
  B1=C1=D1=1;
  ms_delay(250);
 
  B1=0;
  A1=C1=D1=1;
  ms_delay(250);
 
  C1=0;
  A1=B1=D1=1;
  ms_delay(250);
 
  D1=0;
  A1=B1=C1=1;
  ms_delay(250);
  }
}
 
void anticlkwise()
{
 unsigned char i;
 for(i=0;i<=5;i++)
 {
  D1=0;
  A1=B1=C1=1;
  ms_delay(250);
 
  C1=0;
  A1=B1=D1=1;
  ms_delay(250);
 
  B1=0;
  A1=C1=D1=1;
  ms_delay(250);
 
  A1=0;
  B1=C1=D1=1;
  ms_delay(250);
 }
}
 
void main()
{
 lcd_initialize();
 while(1);
 {
  if(S1==0)
  {
   ACC=0x80;
   lcd_cmd();
   lcd_puts(“1BIT LEFTSHIFT”);
   ibit_left();
  }
  else if(S2==0)
  {
   ACC=0x01;
   lcd_cmd();
   ACC=0x80;
   lcd_cmd();
   lcd_puts(“RIGHT SHIFT”);
   right_shift();
  }
  else if(S3==0)
  {
   ACC=0x01;
   lcd_cmd();
   ACC=0x80;
   lcd_cmd();
   lcd_puts(“1BIT RIGHTSHIFT”);
   ibit_right();
  }
  while(1);
  {
   if(S1==0)
  {
   ACC=0x80;
   lcd_cmd();
   lcd_puts(“EVEN NUMBERS”);
   even_segments();
  }
  else if(S2==0)
  {
   ACC=0x01;
   lcd_cmd();
   ACC=0x80;
   lcd_cmd();
   lcd_puts(“ODD NUMBERS”);
   odd_segments();
  }
  else if(S3==0)
  {
   ACC=0x01;
   lcd_cmd();
   ACC=0x80;
   lcd_cmd();
   lcd_puts(“DECIMALS”);
   numbers();
  }
  }
  while(1);
  {
   motor=0;
   sec_delay(10);
   motor=1;
   sec_delay(5);
   PWM(30);
  }
  while(1)
  {
   if(S1==0)
   {
   ACC=0x80;
lcd_cmd();
lcd_puts(“MOTOR CLOCKWISE”);
clkwise();
   }
   else if(S2==0)
   {
   ACC=0x01;
lcd_cmd();
ACC=0x80;
lcd_cmd();
lcd_puts(“MOTOR ANTICLOCKWISE”);
anticlkwise();
   }
  }
 }
}
 
 
 

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