[FADCA] Re: Help Fixed

[Chuck Hast]

On Sat, 18 Dec 2004 09:08:38 EST, Kg4fcd at aol.com <Kg4fcd at aol.com> wrote:
>   Thanks fellows for the suggestions.
> I have found that the TNC has a command called CD. This must be set to
> software for it to work in my set up at least. As soon as I get the antenna back up
> I should be back on the air.
> 

Good, Bud's info was very good. I think one thing we need is sort of a
repository
of TNC tricks. There are basicly three families of TNC out there that we see in
this country

TNC-2                       Kantronics                             AEA
AEA - some
MFJ
PacComm                                                            

The command structure will fall under one of these three families.

KISS
Again the same sort of thing. Kantronics appears to have adopted the
BPQKiss format
for accessing multiple ports, if you can talk BPQKiss you can talk to
both ports, in
linux you have one physical port and two seudoports, one for each of
the ports in the
TNC.

I am not sure but believe that AEA uses a modified set of commands to
start KISS, but
I believe it is standard KISS.

TNC-2 familiy.
All come with standard KISS installed, 

BPQKiss is available as a separate file, if you are going
to use multiple TNC's on a serial port you will need to go in and
change the address
byte as per the BPQKiss docs. BPQKiss should operate with the serial
port at twice
the speed of the fastest HDLC port.

6Pack is also available for TNC-2 type machines. The function of 6pack
sets somewhere
between BPQKiss and a full blown TNC. It handles the timing and
channel access in the
TNC where it is actually seeing the channel activity. It tells the
host PC when the channel
is busy or available allowing timers to be stopped and started based
on channel activity.
With the correct drivers 6pack can also handle multi-drop off of a
single serial port. You
must operate the RS-232 port at twice the highest HDLC data rate.
Unlike BPQKiss,
6pack is daisychained one TNC to another, the data is handled similar
to a toke ring.
The first TNC in the loop corresponds to port 0, second one to port 1 etc.




-- 
Chuck Hast 
To paraphrase my flight instructor;
"the only dumb question is the one you DID NOT ask resulting in my going
out and having to identify your bits and pieces in the midst of torn
and twisted metal."