Changing bits in a byte for multiple output

[skimask]

You're making this WAYYYY too hard.
If you've got all of the keys on portB, then just send the whole portB value, all 8 bits, all the keys, all at once, and keep sending them. Even if you don't have all of the buttons on PortB, get all of the buttons states and put them into the bits of a single byte variable and send that.
Get that working so it's infallible, or at least as infallible as you can tolerate it.
Then do all of the hard work at the receiver end figuring out which lights to light or whatever.
I'm thinking you won't get anywhere until that happens...

[tazntex]

Thanks Skimask, your right I have made this difficult but the reason I was not sending out the whole PORTB is that I am trying to use a simple manchester encoding. My 0 is a 01 an a 1 being 10.
Thanks

[skimask]

Thanks Skimask, your right I have made this difficult but the reason I was not sending out the whole PORTB is that I am trying to use a simple manchester encoding. My 0 is a 01 an a 1 being 10.
Thanks

I don't think I would worry about encoding anything at the moment. You're sending short packets. As long as you've got preamble and a sync'ing character, you should be good to send the raw port data, in short bursts anyways.
i.e. SEROUT datapin , mode , whatever , $55,$AA,$FE,raw_portb_data (assuming portb.7 isn't actually used)
Just keep resending it as long as a key is pressed and code the receiver to look for the same thing that you're sending.