interfacing fingerprint module r305 with p89v51rd2 controller

[shailav surve]

Hello Sir,

             I have the following code for interfacing fingerprint module with microcontroller..But this code is for interfacing Sm630 with microcontroller but i am using r305..so please tell me that will this code run with r305 fingerprint module??

             The code is as follows..

             #define cmd_add_fingerprint     0x40

#define cmd_search_fingerprint 0x44
#define cmd_packet      0x10
#define data_packet     0x20
#define res_packet      0x30

#define res_rcv_correct 0x01
#define res_rcv_error   0x02
#define res_opr_success 0x31
#define res_finger_detected     0x32
#define res_timeout     0x33
#define res_process_fail 0x34
#define res_para_error  0x35
#define res_fingerprint_found 0x39
#define res_fingerprint_unfound 0x3A

#use rs232(baud=57600,xmit=PIN_C6,rcv=PIN_C7,bits=8,parity=n,stop=1,stream=Finger,timeout=1000)//,force_sw)

int8 cmd_buffer[10],response_buffer[15];

int8 find_checksum(int8 total_byte)
{
        int8 byte_count;
        int16 check_sum=0;
        for(byte_count=0;byte_count<total_byte;byte_count++)
        {
                check_sum+=cmd_buffer[byte_count];
        }
        
        return(make8(check_sum,0));
}

void cmd_to_sm630(int8 total_byte)
{
        int8 byte_count;
        for(byte_count=0;byte_count<total_byte;byte_count++)
        {
                fputc(cmd_buffer[byte_count],Finger);
                delay_us(10);
        }               
}

void response_from_sm630(int8 total_byte)
{
        int8 byte_count;
        while(fgetc(Finger)!=0x4D);
        response_buffer[0]=0x4D;
        for(byte_count=1;byte_count<total_byte;byte_count++)
        {
                response_buffer[byte_count]=fgetc(Finger);
        }                       
}               
        

int8 add_finger(int16 finger_id)
{
        cmd_buffer[0]=0x4D; //Packet Head
        cmd_buffer[1]=0x58; //Packet Head
        cmd_buffer[2]=cmd_packet; //Command Packet
        cmd_buffer[3]=0x03; //3 byte length
        cmd_buffer[4]=cmd_add_fingerprint; //Add finger Print cmd
        cmd_buffer[5]=make8(finger_id,1);//Higher byte of finger print id
        cmd_buffer[6]=make8(finger_id,0);//Lower byte of finger print id
        cmd_buffer[7]=find_checksum(7);//Check sum of 7 bytes
        
        cmd_to_sm630(;
        response_from_sm630(6); //Read 6 bytes
        
        if(response_buffer[4] == res_rcv_correct)
        {
                
                response_from_sm630(7); //Read 6 bytes
                if(response_buffer[5] == res_opr_success)
                {
                        //Display Press finger again
                        //lcd_goto(2,1);
                        //lcd_send_byte(”  Press again   “);
                        response_from_sm630(7); //Read 6 bytes
                }
        }
        return (response_buffer[5]);            
}       

int8 search_finger(int16& result_id,int16 num_fingerprint)
{
        output_low(PIN_A5);
        cmd_buffer[0]=0x4D; //Packet Head
        cmd_buffer[1]=0x58; //Packet Head
        cmd_buffer[2]=cmd_packet; //Command Packet
        cmd_buffer[3]=0x05; //5 byte length
        cmd_buffer[4]=cmd_search_fingerprint; //Search finger Print cmd
        cmd_buffer[5]=0x00; //Higher byte of Starting id
        cmd_buffer[6]=0x00; //Lower byte of Starting id
        cmd_buffer[7]=make8(num_fingerprint,1);//Higher byte of number of  fingerprints searched
        cmd_buffer[8]=make8(num_fingerprint,0);//Lower byte of number of  fingerprints searched
        cmd_buffer[9]=find_checksum(9);//Check sum of 9 bytes
        
        cmd_to_sm630(10);
        response_from_sm630(6); //Read 6 bytes
        if(response_buffer[4] == res_rcv_correct)
        {
                response_from_sm630(7); //Read 7 bytes
                if(response_buffer[5] == res_opr_success)
                {
                                delay_ms(10);
                                response_from_sm630(6); //Read 6 bytes
                                //disp_response(6);
                                if(response_buffer[5] ==res_fingerprint_found)
                                {
                                        response_buffer[0]=fgetc(Finger);
                                        response_buffer[1]=fgetc(Finger);
                                        result_id=make16(response_buffer[0],response_buffer[1]);
                                }
                
        
                }

        }
        else
                response_buffer[5]=response_buffer[4];          
        return (response_buffer[5]);    
                

}      

 

 

[Flake]

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