[SOLVED] R305 Fingerprint Sensor Reading issue

[arunbharathi.arasu]

Dear Friends,

I'm using R305 Fingerprint sensor for my project.
I don't know how to get data from fingerprint sensor.

I wrote simple code for R305, which is given below.
I used Hi-Tech C compiler.

#include<htc.h>
#include<stdio.h>
#include <string.h>
#include"uart.h"
#include"gsm.h"


unsigned char Arraydata[160],count=0;
void port_init()
{
    TRISD1=0;       // IGNITION CNAGE TO OFF/ON
    TRISD2=1;       // IGNITION STATUS CHECK 
    TRISD3=1;       // AC STATUS CHECK
    
}
void delay(unsigned int de)
{
    unsigned int maxde,minde;
    for(maxde=0;maxde<de;maxde++)
        for(minde=0;minde<453;minde++);
}


void interrupt uart_ISR(void)
{
    if(RCIF == 1)
    {
        IG_CHANGE=1;
        Rx_data=RCREG;
        RCIF=0;
            if(Rx_data!= '\r')
           {
             Arraydata[count]= Rx_data; 
             count++;
           }
           else
           {
            Arraydata[count]='\0';
           }
            trans_string(Arraydata);
        }     
}
void port1_init()
{
    TRISC6=0;
    TRISC7=1;
}
void transmitter_data(unsigned char dat)
{
    while(!TRMT);
    TXREG=dat;
}
void trans_string(unsigned char *str)
{
    while(*str!='\0')
    {
      transmitter_data(*str);
      str++;
      delay(20);
    }
}




void UART_init()
{
    TXEN    =   1;  //  transmission side enable
    SYNC    =   0;  //  enable asynchronous bit
    BRGH    =   1;  //  enable high baud rate generator
    TRMT    =   0;  //  make transmit shift register are full
    TX9D    =   0;  //  disable 9bit transmission


    SPEN    =   1;  //  enable serial port in receiver side
    CREN    =   1;  //  enable continuous reception
    ADDEN   =   0;  //  disable address decets bit
    FERR    =   0;  //  set no framing error bit
    OERR    =   0;  //  set no overrun bit
    RX9D    =   0;  //  disble 9bit reception


    SPBRG   =   129;//  load SPBRG value for 9600 baud rate for 20 mhz
    GIE     =   1;
 
    IPEN   = 1;
    GIEH  = 1;
    GIEL  = 1;
    PEIE    =   1;
    RCIE    =   1;
    RCIP  = 1;
  
}

void main()
{
    port_init();
    port1_init();
    UART_init();
   while(1)
   {
     
       trans_string("0xEF\r");
       delay(100);
       trans_string("0x01\r");
       delay(100);
       trans_string("0xFF\r");
       delay(100);
       trans_string("0xFF\r");
       delay(100);
       trans_string("0xFF\r");
       delay(100);
       trans_string("0xFF\r");
       delay(100);
       trans_string("0xFF\r");
       delay(100);
       trans_string("0x01\r");
       delay(100);
      trans_string("0x00\r");
       delay(100);
       trans_string("0x03\r");
       delay(100);
       trans_string("0x01\r");
       delay(100);
       trans_string("0x00\r");
       delay(100);
       trans_string("0x05\r");
       delay(10000);
   }
}

 

[dreamlover]

Which MCU you are going to use? if it is PIC18F4520 then here is code for you

#include <htc.h>
#include <stdio.h>
#include "Includes.h"

//------------------------------------------------------------FUSE CONFIGURATION ----------------------------------------

__CONFIG(1, HSPLL);
__CONFIG(2, BORDIS & PWRTDIS & WDTDIS & PBADDIS);
__CONFIG(3, CCP2RC1 & MCLREN);
__CONFIG(4, DEBUGEN & LVPDIS & STVREN);
__CONFIG(5, UNPROTECT);


//------------------------------------------------------------FUNCTION DECLARATION FREQUENCY ----------------------------------------


void interrupt ISR(void);
void PORTs_init(void);



//------------------------------------------------------------XTAL FREQUENCY ----------------------------------------

#define _XTAL_FREQ  32000000  //this is 4x8Mhz because of the PLL Enable

  
//------------------------------------------------------------GLOBAL VARIABLE DECLARATION----------------------------------------

char Reply[20]="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
int Finger_Detect;
char temp;
char a[5]="\0\0\0\0\0";
char buf[10]="";




void PORTs_init(void) 
{
		  TRISC  =0x81;		
    	  PORTC  =0x7E;
	

}

//------------------------------------------------------------BIO-INPUT RELATED FUNCTION----------------------------------------

unsigned int Finger_PROESS()
{
		for(int i=1;i<=12;i++){      //this loop to fill the buffer with null values precaution
		Reply[i]=33;                    
		}
check:

		FingerDetectR305();
		for(int i=1;i<=12;i++){
		Reply[i]=ReceiveByteSerially();
		}
		switch(Reply[10]){
		case 0x00:
		for(int i=1;i<=12;i++){
		Reply[i]=33;
		}
		break;
		default:
		for(int i=1;i<=12;i++){
		Reply[i]=33;
		}
		goto check;
		break;
		}
		FingerStore1R305();
		for(int i=1;i<=12;i++){
		Reply[i]=ReceiveByteSerially();
		}
		switch(Reply[10]){
		case 0x00:
	
		break;
		default:
		for(int i=1;i<=12;i++){
		Reply[i]=ReceiveByteSerially();
		}
		goto check;
		break;
		}
		SearchLibR305();
		for(int i=1;i<=12;i++){
		Reply[i]=ReceiveByteSerially();
		}
		switch(Reply[10]){
		case 0x00:	
	switch(Reply[12]){
		case 0x00:
		for(int i=1;i<=12;i++){
		Reply[i]=33;
		}	
		return 1;		
		break;
		case 0x01:
		for(int i=1;i<=12;i++){
		Reply[i]=33;
		}	
		return 2;	
		break;
		case 0x02:
		for(int i=1;i<=12;i++){
		Reply[i]=3;
		}	
		return 3;	
		break;
		break;
		default:
		for(int i=1;i<=12;i++){
		Reply[i]=3;
		}
		return 9;
		goto check;	
		break;
		}
}
}






//------------------------------------------------------------MAIN PROGRAM RELATED FUNCTION----------------------------------------


main(void)
{
		unsigned int USER_DETECT;
		PORTs_init();
		InitUART();
		while(1)
		{
		USER_DETECT=Finger_PROESS();  //this return the ID of the matched user  
		for(int i=1;i<=12;i++){
		Reply[i]=0;
		}
		switch(USER_DETECT){
		case 1:
		break;
		case 2:
		break;
		case 3:
		break;
		default:	

		break;
        }
    }
}