SERIN2 and Proteus Simulation

[uuq1]

I am using the following code for 16F877:

serialInput var PORTB.1
RX VAR BYTE[8]

TRISB=%01000000 'Make PORTB Pin 1 as input

start:
pause 200
PORTB=%11111111 'Just an indicator that the program has started
pause 200
serin2 serialInput, 396,[wait("+"),RX[0]]
PORTB=%00000000
pause 200

goto start

[uludere72]

you don't need to connect xtal and C to drawing. use attachment file..

[uludere72]

this schema. for rx and tx port ..
file uploaded

[uuq1]

Thanks alot uludere72.

Is it necessary to use MAX232 with Virtual Terminal.

You are right that we donot need to connect the crystal and capacitors in Proteus. But the question is : why do the crystal and capacitors used in the Proteus sample design files?

[uuq1]

The problem is solved with some minor modifications. Thanks again uludere72.

I am pasting the code and the design file for others, who may go through the same problem in future.

[uludere72]

your welcome ...

[uuq1]

Another problem in simulation is that the modifiers cant be used like the statement :

serin2 serialInput, 396,[WAIT("X"), DEC testWord, WAIT("Z")]

Any clue about the solution?