I‘ve tried make visitor counter circuit and successful, and I want to combine it with articel read write eeprom (I tried it and succeeded), but when I try to combine both methods the program does not work, please help, I want to store data in the eeprom at24c16 count, and show on seven segment display,
here the code…
#include<reg51.h>
#include<intrins.h>
#define msec 50
#define lcd_data_str_pin P0
bit ack;
sbit rs = P3^6; //Register select (RS) pin
sbit rw = P3^5; //Read write(RW) pin
sbit en = P3^7; //Enable(EN) pin
sbit sda=P3^1; //sda
sbit scl=P3^0; //sck
sbit led=P1^0;
sbit led1=P1^1;
sbit sensor_1=P3^1; //sensor1
int max = 0;
int carry = 0;
int arr[4];
//inisialissi varibel eeprom
unsigned char reead,write,write2,b,k;
unsigned int temp;
//
int count_amt[7],j;
unsigned int count_1,count_2;
/*
void delay(int delay_time) // Time delay function
{
int j,k;
for(j=0;j<=delay_time;j++)
for(k=0;k<=1275;k++);
}
*/
void delay(unsigned int count) // Function to provide time delay in msec.
{
int i,j;
for(i=0;i<count;i++)
for(j=0;j<500;j++);
}
void lcd_cmd(unsigned char cmd_addr) //Function to send command to LCD
{
lcd_data_str_pin = cmd_addr;
en = 1;
rs = 0;
rw = 0;
delay(1);
en = 0;
return;
}
void lcd_data_str(char str[50]) //Function to send string
{
int p;
for (p=0;str[p]!=’ ’;p++)
{
lcd_data_str_pin = str[p];
rw = 0;
rs = 1;
en = 1;
delay(1);
en = 0;
}
return;
}
void lcd_data_int(unsigned int count)
{
char dig_ctrl_var;
int p;
for (j=6;j>=0;j–)
{
count_amt[j]=count%10;
count=count/10;
}
for (p=0;p<=6;p++)
{
dig_ctrl_var = count_amt[p]+48;
lcd_data_str_pin = dig_ctrl_var;
rw = 0;
rs = 1;
en = 1;
delay(1);
en = 0;
}
return;
}
void aknowledge() //acknowledge condition
{
scl=1;
_nop_();
_nop_();
scl=0;
}
void start() //start condition
{
sda=1;
scl=1;
_nop_(); //No operation
_nop_();
sda=0;
scl=0;
}
void stop() //stop condition
{
sda=0;
scl=1;
_nop_();
_nop_();
sda=1;
scl=0;
}
void send_byte(unsigned char value) //send byte serially
{
unsigned int i;
unsigned char send;
send=value;
for(i=0;i<8;i++)
{
sda=send/128; //extracting MSB
send=send<<1; //shiftng left
scl=1;
_nop_();
_nop_();
scl=0;
}
ack=sda; //reading acknowledge
sda=0;
}
unsigned char read_byte() //reading from EEPROM serially
{
unsigned int i;
sda=1;
reead=0;
for(i=0;i<8;i++)
{
reead=reead<<1;
scl=1;
_nop_();
_nop_();
if(sda==1)
reead++;
scl=0;
}
sda=0;
return reead; //Returns 8 bit data here
}
void save() //save in EEPROM
{
start();
send_byte(0xA0); //device address
aknowledge();
send_byte(0x00); //word address
aknowledge();
// send_byte(5); //send data
// aknowledge();
// send_byte(65);
// aknowledge();
stop();
/*if(ack==0)
{
led1=1;
delay(100);
led1=0;
delay(100);
lcd_command(0x86);
lcd_data(‘5’);
lcd_command(0x87);
lcd_data(‘A’);
}
else
led1=1;
aknowledge();
*/
}
void Read()
{
/*start();
send_byte(0xA0);
aknowledge();
send_byte(0x00);
aknowledge();
*/
start();
send_byte(0xA1);//device address
aknowledge();
b=read_byte();
aknowledge();
k=read_byte();
aknowledge();
stop();
if(b==0)
{
led=0;
delay(100);
led=1;
delay(100);
write=b+count_2;
lcd_cmd(0x86);
lcd_data_int(write);
}
else
led=1;
if(k!= 0)
{
lcd_cmd(0x87);
lcd_data_int(count_2);
}
aknowledge();
}
void count_count() //count
{
while (sensor_1==0);
if (sensor_1==1)
{
while (sensor_1 == 1);
{
count_1 = count_1 + 1;
// save();
if(count_2==0)
count_2=count_1;
if(count_2 !=0){
count_2=count_2+1;
start();
send_byte(0xA0); //device address
aknowledge();
send_byte(0x00); //word address
aknowledge();
send_byte(count_2); //send data
aknowledge();
//send_byte(count_1);
//aknowledge();
stop();
if(ack==0)
{
led1=1;
delay(100);
led1=0;
lcd_cmd(0x38);
delay(5);
lcd_cmd(0x01);
delay(5);
lcd_cmd(0x80);
lcd_data_str(“Saved: “);
lcd_cmd(0x87);
lcd_data_int(count_2);
}
else
led1=1;
aknowledge();
}
}
}
}
void main()
{
//ini_pin = stop_pin = 1;
count_1= 0;
sensor_1= 0;
lcd_cmd(0x38);
delay(5);
lcd_cmd(0x0F);
delay(5);
lcd_cmd(0x80);
delay(5);
lcd_data_str(“COUNT UP”);
Read();
delay(5);
while(1)
{
//results();
//lcd_ini();
count_count();/*
lcd_cmd(0x38);
delay(5);
lcd_cmd(0x0F);
delay(5);
lcd_cmd(0x02);
delay(5);
lcd_cmd(0x80);
delay(5);
lcd_data_str(“push switch “);
*/
lcd_cmd(0x38);
delay(5);
lcd_cmd(0x0F);
delay(5);
lcd_cmd(0x02);
delay(5);
lcd_cmd(0xC0);
delay(5);
lcd_data_str( “value :” );
lcd_cmd(0x38);
delay(5);
lcd_cmd(0x0F);
delay(5);
lcd_cmd(0xC8);
delay(5);
lcd_data_int(count_1);
delay(5);
Read();
delay(5);
}
}
please help and advice