I want to connect PIC16F877 to PIC16F84 by using serial communication

[skimask]

Hi, every one
I have a problem when I try to connect two PIC u controllers (PIC16F877) and (PIC16F84) by using serial communication.

I test each PIC separately and they work well with virtual PC terminal.

The serial communication settings are : Baud rate = 9600, 8 bit without parity.

Each u Controller separately send and receive data correctly to and from the virtual PC terminal.

I use these commands for send and receive data :

For send data : (PIC16F877)
---------------
declare Xtal = 20
SERout portB.2, 16468 , ["00" , 13]
SERout portB.2, 16468 , [DEC 11 , 13]
SERout portB.2, 16468 , [DEC 10 , 13]


For receive data : (PIC16F84
-----------------
declare Xtal = 4
dim serdata as byte
SERIN portB.2 , 16468 , [DEC serdata]

Can any one have an idea about this situation.


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Thank you ...
Mohamed Attia
[email protected]
[email protected]

Doesn't look like PBP to me...or am I wrong again...
At any rate, have you checked your PBP manual? There's an interesting note on page 202 that may help your situation.