Problem receiving pulses

[pete]

Hi there!
Am trying to received pulses in sync with 60hz 50% duty cycle square wave. The pulses arrived right after rising edge of square wave or right after falling edge of square wave. This edge correspond to zero crossing. I can't received the pattern that I send which is "0110100110". This correspond to binary "01101' transmitted using x10 protocol. That is 01 correspond to 0 and 10 correspond to 1. What could be wrong? Here is the code:

#include <16F628A.h>
#include <STDLIB>
#fuses INTRC,NOWDT,NOPROTECT
#use delay(clock=4000000)

/**********************************************************************\
* *
* M A I N R O U T I N E *
* *
\*********************************************************************/

void main()
{

boolean hc1,hc2,hc3,hc4,hc5,hc6,hc7,hc8,hc9,hc10=0;


output_B(0x00); // initialize port B



while(input(PIN_A0)) // A0 input 1st zero crossing of AC line
hc1=input(PIN_A1); // A1 input pulse corresponding to 1st zero crossing
while(!input(PIN_A0)) // A0 input 2nd zero crossing of AC line
hc2=input(PIN_A1); //A1 input pulse corresponding to 2nd zero crossing
while(input(PIN_A0)) // A0 input 3rd zero crossing of AC line
hc3=input(PIN_A1);//A1 input pulse corresponding to 3rd zero crossing
while(!input(PIN_A0)) // A0 input 4th zero crossing of AC line
hc4=input(PIN_A1); A1 input pulse corresponding to 4th zero crossing
while(input(PIN_A0)) // A0 input 5th zero crossing of AC line
hc5=input(PIN_A1);//A1 input pulse corresponding to 5th zero crossing
while(!input(PIN_A0))// A0 input 6th zero crossing of AC line
hc6=input(PIN_A1);//A1 input pulse corresponding to 6th zero crossing
while(input(PIN_A0)) // and so on...
hc7=input(PIN_A1);//and so on...
while(!input(PIN_A0))
hc8=input(PIN_A1);
while(input(PIN_A0))
hc9=input(PIN_A1);
while(!input(PIN_A0))
hc10=input(PIN_A1);


output_bit(PIN_B0, hc1); // to display in LED the received pulses
output_bit(PIN_B1, hc3);
output_bit(PIN_B2, hc5);
output_bit(PIN_B3, hc7);
output_bit(PIN_B4, hc9);

delay_ms(1000); //to make LED visible for 1 sec.
output_b(0x00);



}

[PCM programmer]

Are you using an X10 module that is intended for a computer interface
to the power line ? If so, look these CCS files:

CCS driver for the TW523:
c:\program files\picc\drivers\x10.c

Example file that calls that driver:
c:\program files\picc\examples\ex_x10.c

[pete]

Yes I have seen that. Actually I don't have to use X10 exactly since that protocol is sending start code, housecode and keycode/function code and this being sent twice. Forget x10 protocol. I am just interested to the code to receive the pulses as i have described above. What could be wrong with that code?Thanks...