simple UART b/w PIC & AT micros

good day all

here is a little problem communicating between two different micros.
here am trying to communicate between AT89S52 & PIC16F877 via uart(cross connection directly in proteus) at 9600 baud rate.
AT89 as master & PIC16F as slave.
independently, both are working fine (with terminal), but when i cross wire them, PIC received garbage value & shows error.

is there anything am missing?
i shall add the proteus files & the code today.

code will be helpful. What kind of error are you getting? overrun etc.?

hello ajay..

please find attached all the files.
both the codes are in mikroc. communication is being initialized by AT89 by sending 'Y' as a start.
PIC16 wait for the character, identifies it as 'Y' or not and accordingly prints the response on LCD.

here, for AT89, i have used some custom functions for UART as inbuilt UART isn't responding properly.

please look into and advise.

thanks & regards

hmm... for 8051

//baud rate 0xF3 for 2400
 TH1=0XF3;
 TL1=0XF3;

where as on PIC, uart is running at 9600

UART1_Init(9600);

looks like a problem to me.

gr8....this is what happens when we just copy-paste the codes...

Thnaks Ajay...

this is another lesson to be learnt, - new code for every new project...

& never copy the whole project as it is...HAHA