[Nova-Net] LVB Tracker 1 compatibility

[Howard Long]

Sorry Folks,

The URLs for the code should be:

http://www.g6lvb.com/Articles/LVBTracker/LVBTrack.hex
http://www.g6lvb.com/Articles/LVBTracker/LVBTrack.c 

Cheers, Howard 

-----Original Message-----
From: nova-net-bounces at nlsa.com [mailto:nova-net-bounces at nlsa.com] On Behalf
Of Howard Long
Sent: 26 May 2008 11:45
To: nova-net at nlsa.com
Subject: [Nova-Net] LVB Tracker 1 compatibility

Folks

A few weeks ago my attention was drawn to a compatibility problem with Nova
and the LVB Tracker 1 interface. I believe that I have found the fault, but
it is not clear why it has taken so long for this problem to occur,
especially as Nova has been my tracking program of choice for many years! It
may only affect more recent versione of Nova.

I have adjusted the LVB Tracker's Baud Rate Generator slightly to be much
closer to 9600bps. I must have made an error in my calculations all those
years ago, so it was only operating at 9259bps. I have adjusted the BRG by
one to make 9616bps and things seem to be much better now. Technically, we
were only 3.5% out anyway which normally would be OK (ISTR that 5% timing
error is the limit).

Anyway, new 0.9 binaries and source here:

http://www.g6lvb.com/Articles/LVBTrack.hex
http://www.g6lvb.com/Articles/LVBTrack.c

More information on the tracker is here:

http://www.lvbtracker.com

Profits from the trackers go to building more satellites! Based on the
number of PCBs shipped, there are about 700 LVB Tracker units out there.

73, Howard G6LVB


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