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FATAL ERROR L210: I/O ERROR ON INPUT FILE:
EXCEPTION 0021H: PATH OR FILE NOT FOUND
FILE: C:KEILC51LIBC51FPS.LIBThe program gives me the above error.. Someone please help
// Program to rotate servo to user defined angular position
// 0 degree = 700us// 180 degree = 5500us// Timer1 pulse after 50us -23#include<reg51.h>#define dataport P2 // Data port for LCD#define key P0 // Port for Keypad#define port P1sbit output = port^0;sbit rs = port^3;sbit rw = port^4;sbit en = port^5;sbit col1 = key^4;sbit col2 = key^5;sbit col3 = key^6;sbit row1 = key^0;sbit row2 = key^1;sbit row3 = key^2;sbit row4 = key^3;int count=0,time=0,check, digit[3];void delay(unsigned int msec) // Function for delay{int i,j;for(i=0;i<msec;i++)for(j=0;j<1275;j++);}void lcd_cmd(unsigned char item) // Function to send command to LCD{dataport = item;rs= 0;rw=0;en=1;delay(1);en=0;return;}void lcd_data(unsigned char item) // Function to send one byte data to LCD{dataport = item;rs= 1;rw=0;en=1;delay(1);en=0;return;}void lcd_data_string(unsigned char *str) // Function to send string to LCD{int i=0;while(str!=' '){lcd_data(str);i++;delay(10);}return;}lcd_data_int(int time_val) // Function to send three digit number{int int_amt;int_amt = time_val/100;lcd_data(int_amt+48);time_val = time_val%100;int_amt = time_val/10;lcd_data(int_amt+48);int_amt = time_val%10;lcd_data(int_amt+48);}void shape() // Function to make degree sign{lcd_cmd(64);lcd_data(2);lcd_data(5);lcd_data(2);lcd_data(0);lcd_data(0);lcd_data(0);lcd_data(0);lcd_data(0);}void timer(int msec) // Function to produce pulse as defined by user{int i;TR1=1;for(i=0;i<msec;i++){while(TF1==0);TF1=0;}TR1=0;}void digit_set(int num){if(count==4){lcd_cmd(0x01);lcd_data_string("done");check=num;}else{check=0;if(count==1)digit[0]=num;else{if(count==2){digit[1]=digit[0];digit[0]=num;}elseif(count=
){digit[2]=digit[1];digit[1]=digit[0];digit[0]=num;}}lcd_data((num+48));}}void check_col1() // Col1 check{row1=row2=row3=row4=1;row1=0;if(col1==0) // Key 1{delay(10);count=count+1;digit_set(1);}row1=1;row2=0;if(col1==0) // Key 4{delay(10);count=count+1;digit_set(4);}row2=1;row3=0;if(col1==0) // Key 7{delay(10);count=count+1;digit_set(7);}row3=1;row4=0;if(col1==0) // Key *{delay(10);count=count+1;if(count==4){digit_set(10);}else{count=4;digit_set(10);}}row4=1;}void check_col2() //Col2 check{row1=row2=row3=row4=1;row1=0;if(col2==0) // Key 2{delay(10);count=count+1;digit_set(2);}row1=1;row2=0;if(col2==0) // Key 5{delay(10);count=count+1;digit_set(5);}row2=1;row3=0;if(col2==0) // Key 8{delay(10);count=count+1;digit_set(
;}row3=1;row4=0;if(col2==0) // Key 0{delay(10);count=count+1;digit_set(0);}row4=1;}void check_col3() // Col3 check{row1=row2=row3=row4=1;row1=0;if(col3==0) // Key 3{delay(10);count=count+1;digit_set(3);}row1=1;row2=0;if(col3==0) // Key 6{delay(10);count=count+1;digit_set(6);}row2=1;row3=0;if(col3==0) // Key 9{delay(10);count=count+1;digit_set(9);}row3=1;row4=0;if(col3==0) // Key #{delay(10);count=count+1;lcd_data_string("wrong data");lcd_cmd(0x01);lcd_data_string("enter degree:");lcd_cmd(0xc5);count=0;}row4=1;}void keypad(){if(col1==0)check_col1();elseif(col2==0)check_col2();elseif(col3==0)check_col3();delay(10);}void main(){int i;col1=col2=col3=1;TMOD=0x20; // MODE2TH1= -23; // 50 usec timershape();output=0;lcd_cmd(0x38);lcd_cmd(0x0e);lcd_cmd(0x01);delay(100);while(1){count=0;lcd_cmd(0x01);lcd_data_string("enter degree:");lcd_cmd(0xc5);check=0;digit[0]=0;digit[1]=0;digit[2]=0;while(check!=10){row1=row2=row3=row4=0;while(col1==1 && col2==1 && col3==1);keypad();}time=(digit[0]+(digit[1]*10)+(digit[2]*100));lcd_cmd(0xc4);time=time%180;lcd_data_int(time);lcd_data(0);time= time*0.5; // (110-14)/180=0.53for(i=0;i<200;i++){output=1;timer(14);output=0;timer(360);}delay(100);for(i=0;i<200;i++){output=1;timer(time+14);output=0;timer(360);}timer(3000000);}}
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