help for reading from RFID

hi,
i m doing a project using rfid reader. i interfaced it successfully to PC but wen i interface it to my micro controller its not working. i verified the code by checking with pc's terminal software and it works fine there. so please can u help me...

Please attach a diagram and your code if possible.

#include<p89v51rx2.h>

#define Baud_rate 0xFD // BAUD RATE 9600

void main()
{
TMOD = 0x20;
SCON = 0x50;
TH1 = Baud_rate;
TR1 = 1;

while(1)
{
while(RI == 0);
P0=SBUF;
RI = 0;
}

}

i have written program to just read one byte from reader. i have connected leds to P0 to check output. the first byte shold be 03h but i m getting FFh

I think we really need the circuit diagram as well.

i don have the circuit diagram as such. its just a simple interface of rfid scanner (MODULE DT125R Series by Digant Technologies) and microcontroller (p89v51rd2)

what commands are you sending to module.. coz module will only read if you send read command. read the datasheet carefully.

there is no need to send commands to read data. if we swipe card its enough. i have checked the reader output on CRO

CRO or hyperterminal? better test on hyperterminal.

do check baudrate.. and review your code..

check whether the crystal connected is 11.0592Mhz