Qaisarazeemi
- 19th September 2012, 09:53
Hi all!
i want to save my data in the eeprom of pic16f877a. here is my code. i don't know where i am going wrong. kindly help me.
here is the part of my code for your ease. please ignore declerations. i am writing the full code related to eeprom.
void main()
{
//............................EEPROM default data...............................
if ( EEPROM_Read(0x30)== 0);
{
EEPROM_Write(0x30, 0x0A ); // Write data to address 0x30 as default
gen_wt= EEPROM_Read(0x30); // generator warm up time = 10sec
}
if ( EEPROM_Read(0x38)== 0);
{
EEPROM_Write(0x38, 0x02 ); // Write data to address 0x38 as default
self_ont= EEPROM_Read(0x38); // Self ON time = 2sec
}
if ( EEPROM_Read(0x40)== 0);
{
EEPROM_Write(0x40, 0x05 ); // Write data to address 0x40 as default
self_oft= EEPROM_Read(0x40); // Self OFF time = 5sec
}
//.................................................. ............................
}
while(1)
{
if ((enter==0) && (reset==1) && (up==1) && (down==1))// (Button(&PORTD,0,ms,0)) //when Enter is pressed
{
Delay_ms(ms); // wait for switch debounce
itrue=1;
x=0;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Out(1,1,CopyConst2Ram(msg,ep)); //enter passward
delay_ms(t);
passward();
Delay_ms(1000);
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
Lcd_Out(1,1,CopyConst2Ram(msg,pw)); //please wait
Delay_ms(1000);
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1,1,CopyConst2Ram(msg,gwt)); // Generator warm up time
inc=0; //for selection of variable
itrue=1; // Entring and Exiting main menu
opt=1; // option b/w selection number or variable
while(itrue==1)
{
if ((enter==0) && (reset==1) && (up==1) && (down==1))//(Button(&PORTD,0,ms,0)) // pressing enter to enter time
{
Delay_ms(ms); // wait for switch debounce
opt=0;
Lcd_Out(2,1,CopyConst2Ram(msg,sp));
}
Delay_ms(200);
if ((enter==1) && (reset==0) && (up==1) && (down==1))//(Button(&PORTD,1,ms,0)) //press reset to exit
{
Delay_ms(ms); // wait for switch debounce
itrue=0;
}
Delay_ms(200);
if ((enter==1) && (reset==1) && (up==0) && (down==1))//(Button(&PORTD,2,ms,0)) //up
{
Delay_ms(ms); // wait for switch debounce
inc=scroll_up(opt,inc);
}
Delay_ms(200);
if ((enter==1) && (reset==1) && (up==1) && (down==0))//(Button(&PORTD,3,ms,0)) // down
{
Delay_ms(ms); // wait for switch debounce
inc=scroll_down(inc);
}
Delay_ms(200);
}
x++;
Delay_ms(500);
}
and here is the scroll function that i.ve decleared before main() function.
[code]
// ----------------------- scroll up -------------------------------------------
scroll_up( int opt ,int inc )
{
int j=1;
if(opt==1)
{
inc++;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
if(inc==0)
Lcd_Out(1,1,CopyConst2Ram(msg,gwt));
if(inc==1)
Lcd_Out(1,1,CopyConst2Ram(msg,sont));
if(inc==2)
{
Lcd_Out(1,1,CopyConst2Ram(msg,soft));
inc=-1;
}
} //end if opt = 1
if(opt==0)
{
if (inc < 0)
inc=2;
// Lcd_Cmd(_LCD_CLEAR); // Clear display
// Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
//..................inc=0...gen_wt.................. .............
if(inc==0)
{
x=EEPROM_Read(0x30);
// x=gen_wt;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Out(1,1,CopyConst2Ram(msg,gwt));
IntToStr(x, string);
Lcd_Out(2,10,string);
do
{
if((enter==1) && (reset==1) && (up==0) && (down==1) && j==1)//(Button(&PORTD,2,ms,0)&&j) // up pressed
{ Delay_ms(ms); // wait for switch debounce
x++;
}
if((enter==1) && (reset==1) && (up==1) && (down==0) && j==1)//(Button(&PORTD,2,ms,0)&&j) // up pressed
{ Delay_ms(ms); // wait for switch debounce
x--;
}
IntToStr(x, string);
Lcd_Out(2,10,string);
Delay_ms(500);
// }// end if
if((enter==0) && (reset==1) && (up==1) && (down==1))//( Button(&PORTD,0,ms,0)) //Enter pressed to save
{ Delay_ms(ms); // wait for switch debounce
gen_wt=x;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
Delay_ms(500);
Lcd_Out(1,1,CopyConst2Ram(msg,sav));
EEPROM_Write(0x30, x );
Delay_ms(1000);
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1,1,CopyConst2Ram(msg,gwt));
IntToStr(x, string);
Lcd_Out(2,10,string);
j=0; x=0; opt=1;
} // end saving
} while(j);
}// if inc=0
//.................... inc = 1 ...... self_ont ..............
if(inc==1)
{
x=EEPROM_Read(0x38);
// x=self_ont;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Out(1,1,CopyConst2Ram(msg,sont));
IntToStr(x, string);
Lcd_Out(2,10,string);
do
{
if((enter==1) && (reset==1) && (up==0) && (down==1) && j==1)//(Button(&PORTD,2,ms,0)&&j) // up pressed
{ Delay_ms(ms); // wait for switch debounce
x++;
}
if((enter==1) && (reset==1) && (up==1) && (down==0) && j==1)//(Button(&PORTD,2,ms,0)&&j) // down pressed
{ Delay_ms(ms); // wait for switch debounce
x--;
}
IntToStr(x, string);
Lcd_Out(2,10,string);
Delay_ms(500);
// }// end if
if((enter==0) && (reset==1) && (up==1) && (down==1))//( Button(&PORTD,0,ms,0)) //Enter pressed to save
{ Delay_ms(ms); // wait for switch debounce
self_ont=x;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
Delay_ms(500);
Lcd_Out(1,1,CopyConst2Ram(msg,sav));
EEPROM_Write(0x38, x );
Delay_ms(1000);
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1,1,CopyConst2Ram(msg,sont));
IntToStr(x, string);
Lcd_Out(2,10,string);
j=0; x=0; opt=1;
} // end saving
} while(j);
}// if inc=1
//.....................inc=2................self_oft ..................................
if(inc==2)
{
x=EEPROM_Read(0x40);
// x=self_oft;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Out(1,1,CopyConst2Ram(msg,soft));
IntToStr(x, string);
Lcd_Out(2,10,string);
do
{
if((enter==1) && (reset==1) && (up==0) && (down==1) && j==1)//(Button(&PORTD,2,ms,0)&&j) // up pressed
{ Delay_ms(ms); // wait for switch debounce
x++;
}
if((enter==1) && (reset==1) && (up==1) && (down==0) && j==1)//(Button(&PORTD,2,ms,0)&&j) // up pressed
{ Delay_ms(ms); // wait for switch debounce
x--;
}
IntToStr(x, string);
Lcd_Out(2,10,string);
Delay_ms(500);
inc=-1;
// }// end if
if((enter==0) && (reset==1) && (up==1) && (down==1))//( Button(&PORTD,0,ms,0)) //Enter pressed to save
{ Delay_ms(ms); // wait for switch debounce
self_oft=x;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
Delay_ms(500);
Lcd_Out(1,1,CopyConst2Ram(msg,sav));
EEPROM_Write(0x40, x );
Delay_ms(1000);
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1,1,CopyConst2Ram(msg,soft));
IntToStr(x, string);
Lcd_Out(2,10,string);
j=0; x=0; opt=1;
} // end saving
// inc=0;
} while(j);
}// if inc=2
} // if opt = 0
return (inc);
} // end scroll up
//-----------------------scroll Down ...........................................
scroll_down(int inc )
{
// int j=1;
inc--;
if (inc < 0)
inc=2;
if(opt==1)
{
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
if(inc==0)
Lcd_Out(1,1,CopyConst2Ram(msg,gwt));
if(inc==1)
Lcd_Out(1,1,CopyConst2Ram(msg,sont));
if(inc==2)
{
Lcd_Out(1,1,CopyConst2Ram(msg,soft));
}
} //end if opt = 1
return (inc);
}
i want to save my data in the eeprom of pic16f877a. here is my code. i don't know where i am going wrong. kindly help me.
here is the part of my code for your ease. please ignore declerations. i am writing the full code related to eeprom.
void main()
{
//............................EEPROM default data...............................
if ( EEPROM_Read(0x30)== 0);
{
EEPROM_Write(0x30, 0x0A ); // Write data to address 0x30 as default
gen_wt= EEPROM_Read(0x30); // generator warm up time = 10sec
}
if ( EEPROM_Read(0x38)== 0);
{
EEPROM_Write(0x38, 0x02 ); // Write data to address 0x38 as default
self_ont= EEPROM_Read(0x38); // Self ON time = 2sec
}
if ( EEPROM_Read(0x40)== 0);
{
EEPROM_Write(0x40, 0x05 ); // Write data to address 0x40 as default
self_oft= EEPROM_Read(0x40); // Self OFF time = 5sec
}
//.................................................. ............................
}
while(1)
{
if ((enter==0) && (reset==1) && (up==1) && (down==1))// (Button(&PORTD,0,ms,0)) //when Enter is pressed
{
Delay_ms(ms); // wait for switch debounce
itrue=1;
x=0;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Out(1,1,CopyConst2Ram(msg,ep)); //enter passward
delay_ms(t);
passward();
Delay_ms(1000);
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
Lcd_Out(1,1,CopyConst2Ram(msg,pw)); //please wait
Delay_ms(1000);
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1,1,CopyConst2Ram(msg,gwt)); // Generator warm up time
inc=0; //for selection of variable
itrue=1; // Entring and Exiting main menu
opt=1; // option b/w selection number or variable
while(itrue==1)
{
if ((enter==0) && (reset==1) && (up==1) && (down==1))//(Button(&PORTD,0,ms,0)) // pressing enter to enter time
{
Delay_ms(ms); // wait for switch debounce
opt=0;
Lcd_Out(2,1,CopyConst2Ram(msg,sp));
}
Delay_ms(200);
if ((enter==1) && (reset==0) && (up==1) && (down==1))//(Button(&PORTD,1,ms,0)) //press reset to exit
{
Delay_ms(ms); // wait for switch debounce
itrue=0;
}
Delay_ms(200);
if ((enter==1) && (reset==1) && (up==0) && (down==1))//(Button(&PORTD,2,ms,0)) //up
{
Delay_ms(ms); // wait for switch debounce
inc=scroll_up(opt,inc);
}
Delay_ms(200);
if ((enter==1) && (reset==1) && (up==1) && (down==0))//(Button(&PORTD,3,ms,0)) // down
{
Delay_ms(ms); // wait for switch debounce
inc=scroll_down(inc);
}
Delay_ms(200);
}
x++;
Delay_ms(500);
}
and here is the scroll function that i.ve decleared before main() function.
[code]
// ----------------------- scroll up -------------------------------------------
scroll_up( int opt ,int inc )
{
int j=1;
if(opt==1)
{
inc++;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
if(inc==0)
Lcd_Out(1,1,CopyConst2Ram(msg,gwt));
if(inc==1)
Lcd_Out(1,1,CopyConst2Ram(msg,sont));
if(inc==2)
{
Lcd_Out(1,1,CopyConst2Ram(msg,soft));
inc=-1;
}
} //end if opt = 1
if(opt==0)
{
if (inc < 0)
inc=2;
// Lcd_Cmd(_LCD_CLEAR); // Clear display
// Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
//..................inc=0...gen_wt.................. .............
if(inc==0)
{
x=EEPROM_Read(0x30);
// x=gen_wt;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Out(1,1,CopyConst2Ram(msg,gwt));
IntToStr(x, string);
Lcd_Out(2,10,string);
do
{
if((enter==1) && (reset==1) && (up==0) && (down==1) && j==1)//(Button(&PORTD,2,ms,0)&&j) // up pressed
{ Delay_ms(ms); // wait for switch debounce
x++;
}
if((enter==1) && (reset==1) && (up==1) && (down==0) && j==1)//(Button(&PORTD,2,ms,0)&&j) // up pressed
{ Delay_ms(ms); // wait for switch debounce
x--;
}
IntToStr(x, string);
Lcd_Out(2,10,string);
Delay_ms(500);
// }// end if
if((enter==0) && (reset==1) && (up==1) && (down==1))//( Button(&PORTD,0,ms,0)) //Enter pressed to save
{ Delay_ms(ms); // wait for switch debounce
gen_wt=x;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
Delay_ms(500);
Lcd_Out(1,1,CopyConst2Ram(msg,sav));
EEPROM_Write(0x30, x );
Delay_ms(1000);
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1,1,CopyConst2Ram(msg,gwt));
IntToStr(x, string);
Lcd_Out(2,10,string);
j=0; x=0; opt=1;
} // end saving
} while(j);
}// if inc=0
//.................... inc = 1 ...... self_ont ..............
if(inc==1)
{
x=EEPROM_Read(0x38);
// x=self_ont;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Out(1,1,CopyConst2Ram(msg,sont));
IntToStr(x, string);
Lcd_Out(2,10,string);
do
{
if((enter==1) && (reset==1) && (up==0) && (down==1) && j==1)//(Button(&PORTD,2,ms,0)&&j) // up pressed
{ Delay_ms(ms); // wait for switch debounce
x++;
}
if((enter==1) && (reset==1) && (up==1) && (down==0) && j==1)//(Button(&PORTD,2,ms,0)&&j) // down pressed
{ Delay_ms(ms); // wait for switch debounce
x--;
}
IntToStr(x, string);
Lcd_Out(2,10,string);
Delay_ms(500);
// }// end if
if((enter==0) && (reset==1) && (up==1) && (down==1))//( Button(&PORTD,0,ms,0)) //Enter pressed to save
{ Delay_ms(ms); // wait for switch debounce
self_ont=x;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
Delay_ms(500);
Lcd_Out(1,1,CopyConst2Ram(msg,sav));
EEPROM_Write(0x38, x );
Delay_ms(1000);
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1,1,CopyConst2Ram(msg,sont));
IntToStr(x, string);
Lcd_Out(2,10,string);
j=0; x=0; opt=1;
} // end saving
} while(j);
}// if inc=1
//.....................inc=2................self_oft ..................................
if(inc==2)
{
x=EEPROM_Read(0x40);
// x=self_oft;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Out(1,1,CopyConst2Ram(msg,soft));
IntToStr(x, string);
Lcd_Out(2,10,string);
do
{
if((enter==1) && (reset==1) && (up==0) && (down==1) && j==1)//(Button(&PORTD,2,ms,0)&&j) // up pressed
{ Delay_ms(ms); // wait for switch debounce
x++;
}
if((enter==1) && (reset==1) && (up==1) && (down==0) && j==1)//(Button(&PORTD,2,ms,0)&&j) // up pressed
{ Delay_ms(ms); // wait for switch debounce
x--;
}
IntToStr(x, string);
Lcd_Out(2,10,string);
Delay_ms(500);
inc=-1;
// }// end if
if((enter==0) && (reset==1) && (up==1) && (down==1))//( Button(&PORTD,0,ms,0)) //Enter pressed to save
{ Delay_ms(ms); // wait for switch debounce
self_oft=x;
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
Delay_ms(500);
Lcd_Out(1,1,CopyConst2Ram(msg,sav));
EEPROM_Write(0x40, x );
Delay_ms(1000);
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1,1,CopyConst2Ram(msg,soft));
IntToStr(x, string);
Lcd_Out(2,10,string);
j=0; x=0; opt=1;
} // end saving
// inc=0;
} while(j);
}// if inc=2
} // if opt = 0
return (inc);
} // end scroll up
//-----------------------scroll Down ...........................................
scroll_down(int inc )
{
// int j=1;
inc--;
if (inc < 0)
inc=2;
if(opt==1)
{
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
Lcd_Cmd(_LCD_MOVE_CURSOR_RIGHT);
if(inc==0)
Lcd_Out(1,1,CopyConst2Ram(msg,gwt));
if(inc==1)
Lcd_Out(1,1,CopyConst2Ram(msg,sont));
if(inc==2)
{
Lcd_Out(1,1,CopyConst2Ram(msg,soft));
}
} //end if opt = 1
return (inc);
}