Tarang RF module Interfacing with 8052

[aameer]

Hello friends,

I am trying to interface tarang RF module with AT89S52.

But i am facing a weird problem...
the 2 zigbee module are working fine on 2 hyper terminal windows.
i connect rs232 wire to micro controller it is also working fine
but when i connect 1 zigbee module to micro controller side and other to pc.
i am able to receive only from micro controller to PC but i cannot transmit data to micro controller.
when i type something in hyper terminal is sending junk value back to PC
I am confused where is the problem
Zigbee modules are working fine ,program is also fine


This is the code

#include<Reg52.h>
sbit led=P1^0;
unsigned char value;
void main() // main function
{
  TMOD=0x20;
  SCON=0x50;
  TH1=0xfd;
  TR1=1;
  SBUF='A';
while(TI==0);
TI=0;
led=0;
while(1)
{
while(RI==0);
value=SBUF;
RI=0;
if(value=='A')
  led=1;
else
 led=0;
}

 

[anjalimidhuna]

https://www.8051projects.net/lofiversion/t59120/tarang-rf-module-interfacing-8052.html

 

[aameer]

thanks anjalinidhuna...but there was incomplete i did all that things.but still i am recieving unknown value..........
can any one else please..its urgent