help for finger print based attendance monitoring system

[BHARATH.S.HEGDE]

Hai,

 This is third time I am posting my problem in the site, I have’t got any reply last tow times, please help me to fix the problem.

 I am doing finger print based attendance monitoring system and I am using R303A module. The lcd, RTC and EEPROM parts in the project are working fine but the problem that I am facing is the module is not respondig to the commands that I am sending to it.

Here is my main function…… if you want full code to find solution post the contact details to which i have to send the code or if you have the code for that please send the code to “[email protected] help me…………………

 

 

#include<reg51.h>
#include”lcd.h”
#include”I2c.h”
#include”enroll.h”
#include”search.h”
#include”delay.h”

sbit enroll=P0^0;
sbit search=P0^1;

unsigned char clock[7]={0x00,0x00,0x09,0x00,0x02,0x12,0x13};
unsigned char add_location[7]={0x00,0x01,0x02,0x03,0x04,0x05,0x06};

 

void main() //start of main
{

unsigned int i,j,add=0;
unsigned char verify_password[16]={0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x07,0x13,0xFF,0xFF,0xFF,0xFF,0x04,0x17};
//unsigned char set_baudrate[14]={0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x05,0x0E,0x04,0x06,0x00,0x1E};
//unsigned char set_security[14]={0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x05,0x0E,0x05,0x01,0x00,0x1A};
//unsigned char set_package_length[14]={0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x05,0x0E,0x06,0x00,0x00,0x1A};
//unsigned char port_control[13]={0xEF,0x01,0xFF,0xFF,0xFF,0xFF,0x01,0x00,0x04,0x17,0x01,0x00,0x1D};

unsigned char Rxsbuf, confirm_code, store, put_attend;

 

enroll=1; //making the enroll Pin input
search=1; // making the search Pin input

TMOD=0x20;
TH1=0xFF;
SCON=0x50;
PCON=0x80;
TR1=1;
TI=0;

lcd_init();//initialize lcd
lcd_display(“LCD INITIALISED”);
while(add<=6) //update real time clock
{
write_I2c(0xd0,add_location[add],clock[add]);
add++;
}
lcd_cmd(0x01); //clear lcd
delay(2);
lcd_cmd(0x80);
delay(2);
lcd_display(“RTC WRITTEN”);

do //module password verification
{
for(i=0;i<=15;i++)
{
SBUF=verify_password;
while(TI==0);
TI=0;
}

delay(200);

for(j=0;j<=9;j++)
{
while(RI==0);
Rxsbuf=SBUF;
if(j==9)
{
confirm_code=Rxsbuf; //9th byte is the confirmation code
}
RI=0;
}
}while(confirm_code!=0x00);

lcd_cmd(0x01); //clear lcd
delay(2);
lcd_cmd(0x80);
delay(2);
lcd_display(“PWD VERIFIED”);

/* do //port control
{
for(i=0;i<=12;i++)
{
SBUF=port_control;
while(TI==0);
TI=0;
}

delay(10);

for(j=0;j<=9;j++)
{
while(RI==0);
Rxsbuf=SBUF;
if(j==9)
{
confirm_code=Rxsbuf;
}
RI=0;
}
}while(confirm_code!=0x00); */

while(1)
{
store=enroll;
put_attend=search;
//enrolling fingerprint image

if(store==0)
{
enroll_finger();
}

//search fingerprint
if(put_attend==0)
{
search_finger();
}
}

} //end of main

[Syed Aameer]

have you connected the pull up resistors for port 0..if not means i think u may not get the output

[BHARATH.S.HEGDE]

ya i have connected the pull up resisters correctly

 

[RAJI G]

check the voltage levels in the corresponding pin using cro or multimeter or better u usae LEDs

[Author]

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