I am trying to test the tx/Rx using PulsIn command. I am sending a pulse by switching high/low a Tx pin and trying to receive the same using PulsIn command.

But at the receiver, I always see a "0" in ID variable, is there something wrong. But when I place a voltmeter at that particular pin, I do observe a high and low pulse but the same in not shown by ID variable.

Any hint, suggestion is appreciated.

Thanks,
Mankan

/*********Transmitter Code****************/

INCLUDE "modedefs.bas"

SHIFT_VAR VAR BYTE
TEMP VAR BYTE
I VAR BYTE



Loop:

HIGH PORTB.2
PAUSE 2000

HIGH PORTB.4
PAUSE 250
LOW PORTB.4
PAUSE 250

LOW PORTB.2
PAUSE 500


GOTO LOOP

/**********End of Tx code****************/

/*********Receiver Code****************/


INCLUDE "modedefs.bas"

'* Variable declarations
ID var WORD
ST var BYTE
RxData var st


DEFINE OSC 4
CMCON = 7

INPUT PORTB.1
Pause 500

Loop:


PulsIn PORTB.1,1,ID

if ID > 0 then
HIGH PORTB.5
PAUSE 50

LOW PORTB.5
PAUSE 50

else

HIGH PORTB.7
PAUSE 50

LOW PORTB.7
PAUSE 50

endif

GOTO LOOP
/********************END******************/