Help me to the correct the errors in this program for automatic toll collection

[Sherin]

//RX PIN 10  (P3_0)      //RFID(EM-18 MODULE)

//TX PIN 11 (P3_1)

int user1amt=45, user2amt=50,user3amt=70,amounttodisplay;

int k1,k2;

char cardletter;//rfid variable

//lcd connections

sbit LCD_RS at P2_3_bit;

sbit LCD_EN at P2_2_bit;

sbit LCD_D4 at P2_1_bit;

sbit LCD_D5 at P2_0_bit;

sbit LCD_D6 at P2_4_bit;

sbit LCD_D7 at P2_5_bit;

//motor

sbit motor11 at P2_7_bit;

sbit motor12 at P2_6_bit;

//KEYPAD CONNECTIONS

#define R1 P1.F0  //pin 1

#define R2 P1.F1  //pin 2

#define R3 P1.F2  //pin 3

#define R4 P1.F3  //pin 4

#define C1 P1.F4  //pin 13

#define C2 P1.F5  //pin 14

#define C3 P1.F6  //pin 15

int key=12;

void keydelay(void);

void keypadinit(void);

void keycheck(void);

void card1(void);

void card2(void);

 void card3(void);

void rfid(void);

void forwardmotor(void) ;

void stopmotor(void);

void nobalance(void);

void balance(void);

void lcdstart(void);

void main() 

{

keypadinit();

uart1_init(9600);

lcdstart();   // Write text in first row

stopmotor();

while (1)

{

rfid();

}

}

void rfid(void)

{

  if (UART1_Data_Ready())

 {

cardletter = UART1_Read();

card1();

card2();

 card3();

}

}

void card1(void)  //card no.1000699A58BB(PRINTED NO.10539512)

{

if(cardletter=='6')

{

while(!(UART1_Data_Ready()));

cardletter = UART1_Read();

if(cardletter=='C')

{ 

if(user1amt>49) {user1amt= user1amt-50;

 amounttodisplay= user1amt;

 balance();

 forwardmotor();

 }

else

 {

nobalance();

keycheck();k1=key; Lcd_Chr(2, 3, k1+0x30);

keycheck();k2=key; Lcd_Chr(2, 4, k2+0x30);

user1amt=user1amt + k1*10 +k2;

 amounttodisplay= user1amt;

 balance();

 }}}}

 void card2(void) //card no.1000699A58BB(PRINTED NO.10539512)

{

if(cardletter=='1')

{

while(!(UART1_Data_Ready()));

cardletter = UART1_Read();

if(cardletter=='C')

{

 

if(user2amt>49) {user2amt= user2amt-50;

 amounttodisplay= user2amt;

 balance();   forwardmotor();

 }

else

 {

nobalance();

keycheck();k1=key; Lcd_Chr(2, 3, k1+0x30);

keycheck();k2=key; Lcd_Chr(2, 4, k2+0x30);

user2amt=user2amt + k1*10 +k2;

 amounttodisplay= user2amt;

 balance();

 }}}}

 void card3(void)//card no.1000699A58BB(PRINTED NO.10539512)

{

if(cardletter=='D')

{

while(!(UART1_Data_Ready()));

cardletter = UART1_Read();

if(cardletter=='E')

{

if(user3amt>49) {user3amt= user3amt-50;

 amounttodisplay= user3amt;

 balance();   forwardmotor();

 }

else

 {

nobalance();

keycheck();k1=key; Lcd_Chr(2, 3, k1+0x30);

keycheck();k2=key; Lcd_Chr(2, 4, k2+0x30);

user3amt=user3amt + k1*10 +k2;

 amounttodisplay= user3amt;

 balance();

 }}}}

 void balance(void)

{

Lcd_Cmd(_LCD_CLEAR);    Lcd_Out(1,1,"THANK YOU USER");

Lcd_Out(2,1,"BAL ");

Lcd_Chr_cp((amounttodisplay/100)+0x30);

Lcd_Chr_cp(((amounttodisplay/10)%10)+0x30);

Lcd_Chr_cp((amounttodisplay%10)+0x30);

}

void nobalance(void)

{

 Lcd_Cmd(_LCD_CLEAR);  Lcd_Out(1,1,"less balance");

 Lcd_Out(2,1,"please recharge"); Delay_ms(500);

 Lcd_Cmd(_LCD_CLEAR);   Lcd_Out(1,1,"ENTER AMOUNT");

}

void forwardmotor(void)

{

 motor11=1; motor12=0;    Delay_ms(500);

 stopmotor(); Delay_ms(3000);

 motor11=0; motor12=1;    Delay_ms(500);   stopmotor();

}

 

 

void stopmotor(void)

{

 motor11=0; motor12=0;

}

void keycheck(void)

{

key=12;

do

{

C1=0;C2=1;C3=1;

if(R1==0) {key=1;}

if(R2==0) {key=4;}

if(R3==0) {key=7;}

//if(R4==0) {key=10;}

C1=1;C2=0;C3=1;

if(R1==0) {key=2;}

if(R2==0) {key=5;}

if(R3==0) {key=8;}

if(R4==0) {key=0;}

C1=1;C2=1;C3=0;

if(R1==0) {key=3;}

if(R2==0) {key=6;}

if(R3==0) {key=9;}

//if(R4==0) {key=11;}

}while(key==12);

delay_ms(300);

}

void lcdstart(void)

{

  Lcd_Init();                    // Initialize Lcd

              // Clear display

  Lcd_Cmd(_LCD_CURSOR_OFF);          // Cursor off

  Lcd_Out(1,6,"haii");                 // Write text in first row

  delay_ms(500);

   Lcd_Cmd(_LCD_CLEAR);               // Clear display

}

void keypadinit(void)

{

C1=1; C2=1;C3=1;   //pull up

R1=1; R2=1;R3=1;R3=1;    //pull up

}

 

[GANEEV SINGH]

Hi Sherin

Please specify what kind of errors are you getting in this code. Also try searching out similar projects on EG's web-portal.

[Ashutosh Bhatt]

post your errors………..

[Author]

Posts