Serial Modem data break problems

[Dar Scott]

On Friday, May 28, 2004, at 07:49 AM, Scott Copeland wrote:

> Look for "ABCD...." -> works
> Send BREAK
>    <1 second delay>"+++"<1 second delay>   -> doesn't work

The escape sequence might have a problem if "ABCD...." is very long.  
That is, there would be no guard time before the "+++" if the message 
is long.  To avoid that, add the transmit time of "ABCD..." to the 
first guard time.

For example, suppose you are testing at 300 bps.  That would be 30 
characters per second.  If "ABCD..." was over 30 characters long, then 
you would have no prolog guard time for the escape sequence.

Just a though...

Dar Scott