Storing a stream on a variable

[Guest]

Hello,
I am attempting interface of a weigand reader to my pic. My question is, how can i store an incoming pulse stream of highs and lows on a pin and properly set my variable. For instance as a certain pin goes low i want my variable to streams bit value. Example data variable is 00000000 then as pulses come in for 1 and 0 i want to be able to store the proper pulse to the variables bit location. For instance if i receive four pulses for ones and four pulses for zeros my variable must store 11110000. I hope i make any sense.

Thanks!

[Christophe]

This smells like timers.

At what speed is the pulse train coming?

You can read a pin every X time in an interrupt.

then you have to read the pin and set a bit of an 8 bit variable.