Re: 9 bit communication on RS 232

suchitra wrote:
> Hello All
> I wanted to know how can we configure com port for 9 bit
> communication.
> I intend to use the 9th bit as Address/data bit..since i want to
> communicate with more than one devices.

Using a 9th bit is a kludge that should be avoided if at all possible.  It
ties you directly to whatever serial chip you are using (if it supports
it) and will probably be brittle code that will break easily.  And you
might run into problems if you route the data over anything other than an
actual wire.

There are plenty of other ways to put an address field in packet headers.
(And you don't need a whole PPP suite for a simple protocol.)

-- 
Ron Sharp.