On Tue, Jul 31, 2001 at 09:36:31PM +0100, Julian Morrison wrote:
> Rocco Caputo wrote:
> >
> > More exciting, and possibly warranting a separate filter (although it
> > could just be another option in Filter::Block), would be something
> > that uses the proper ASCII control characters to define records and
> > transmissions. Here are some of the control characters and their
> > meanings:
>
> Hmm, that is pretty interesting, I may redesign SyncStream to use that
> lot.
>
> Do you know any site that has verbose details of how those are all
> traditionally used?
Looks like it's called Bisync and was invented in 1966. It's often
abbreviated BSC. Google for "bisync soh stx etx" and "bsc soh stx
etx" reveals a lot of stuff, including:
http://www.cs.uiowa.edu/~jones/opsys/notes/22.html
http://ckp.made-it.com/bisync.html
http://cs.wwc.edu/~aabyan/425/DirectLink.html - 2.3.1 shows the
bisync frame format.
http://www.awstevenson.demon.co.uk/SYSNOTES/bmp.htm
It's widely known as the "VISA protocol", and searches for that should
turn up other resources.
-- Rocco Caputo / [EMAIL PROTECTED] / poe.perl.org / poe.sourceforge.net
