Serial communication issue with AT89S52

Ok Mr. Per Westermark, here my codes are,

; Written in assembly using keil
; Codes for transmitter
org 00h
mov tmod,#20h ; timer 1 in auto reload mode
mov th1,#0fdh ; for baudrate 9600
mov scon,#50h ; for selection of mode 1 with REN set to 1
setb tr1
start: mov sbuf,#0fh ; as leds are connected at port 2 with pins 0,2,4,6
next: jnb ti,next
clr ti
sjmp start
end

;For receiver
; UART initialization is similar to previous one
;uart is initialized
; timer 1 is started
mov p2,#00h
start: jnb ri,next
mov a,sbuf
mov p2,a
clr ri
sjmp start
end

And for your kind information as i am transmitting the data continuously, and i am using UART mode for serial communication then why does synchronization matters between Rx and Tx.
Let me give you some more information
--> Using wired communication in simplex mode...

Now i hope that this information is sufficient about my project, if you wanna know something else then no problem, i will try to share as much as i can....

Ok Mr. Per Westermark, here my codes are,

; Written in assembly using keil
; Codes for transmitter
org 00h
mov tmod,#20h ; timer 1 in auto reload mode
mov th1,#0fdh ; for baudrate 9600
mov scon,#50h ; for selection of mode 1 with REN set to 1
setb tr1
start: mov sbuf,#0fh ; as leds are connected at port 2 with pins 0,2,4,6
next: jnb ti,next
clr ti
sjmp start
end

;For receiver
; UART initialization is similar to previous one
;uart is initialized
; timer 1 is started
mov p2,#00h
start: jnb ri,next
mov a,sbuf
mov p2,a
clr ri
sjmp start
end

And for your kind information as i am transmitting the data continuously, and i am using UART mode for serial communication then why does synchronization matters between Rx and Tx.
Let me give you some more information
--> Using wired communication in simplex mode...

Now i hope that this information is sufficient about my project, if you wanna know something else then no problem, i will try to share as much as i can....

many threads have gone astray because the code was retyped into the post use cut-and-paste and read the instructions for posting code

if that is not the case, then look at this one
start: jnb ri,next

my mistake...
extremely sorry about that

; Written in assembly using keil
; Codes for transmitter
org 00h
mov tmod,#20h ; timer 1 in auto reload mode
mov th1,#0fdh ; for baudrate 9600
mov scon,#50h ; for selection of mode 1 with REN set to 1
setb tr1
start: mov sbuf,#0fh ; as leds are connected at port 2 with pins 0,2,4,6
next: jnb ti,next
clr ti
sjmp start
end

; Codes for transmitter
org 00h
mov tmod,#20h ; timer 1 in auto reload mode
mov th1,#0fdh ; for baudrate 9600
mov scon,#50h ; for selection of mode 1 with REN set to 1
setb tr1
mov p2,#00h
start: jnb ri,start
mov a,sbuf
mov p2,a
clr ri
sjmp start
end

The second block of code is for receiver not for transmitter....
and yes that line is commented so i think that is not affecting my hardware right......

you DO have a MAX232(equivalent) between your chip and the PC I hope

Erik

Thanks for your help, but as i mentioned earlier i am trying to perform serial communication in wired mode between two MCs, so MAX232 is still required..??

Yes, if you have some distance between your two processors then you should use MAX232 or similar on both sides. Logic-level communication isn't robust for longer distances - it is intended for use within a PCB or for shorter cable distances to a neighbour PCB.

Well lets see, i will try that too..
and once again thanks to all of you for your valuable time and comments.