Serial PIC-to-PIC communication

[nina_s]

Not really a new topic, but here goes...

I am a beginner tasked with making a master PIC communicate with up to 3 slave PICs over a single wire using MPLAB assembly. USART/RS232 is ok, but am also open to bit-banging methods. Any pointers on where to begin, including websites with code samples and textbook listings, will be greatly appreciated.

Thanks to all who answer--NS

 

[millwood]

you can google it and you will see lots of examples.

 

[nina_s]

Thanks for replying!

LOTS of information is on the web...some of it useful, some of it not, some of it incorrect or incomplete.

Would anyone care to offer specific sites that they have found helpful?

Regards--NS

 

[millwood]

it is so simple that anyone of them will do it.

i would suggest that you start with a set of routines that communicate between the master to one slave. then you figure out a way to avoid transmission conflict (your own protocol essentially) and then try it on a 1-N set up.