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ZL3AI > APRDIG 11.10.03 09:45l 251 Lines 9606 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Oct 07, 4/5
Path: DB0FHN<DB0RGB<DB0MRW<OK0PKL<OK0PCC<OK0NAG<OK0PPL<DB0RES<ON0AR<ZL2BAU<
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: DigiTraveler to PalmIIIxe
From: Robbie <mwrobertson@comcast.net>
Date: Sun, 05 Oct 2003 01:47:30 -0500
X-Message-Number: 3
Hi all,
Well, I thought I was in good shape. Using pins 2, 3 and 5 on the DB-9
does not seem to get it done.. I am beginning to believe there needs to
be CTS-RTS jumpered or something else..
The GPS works into the Kenwoods.. Works into normal mapping programs
using the RS-232. The PalmIIIxe turns on the GPS, but after about 2
minutes or less, (outside clear view), it complains about NO GPS... All
three of the cables that I cut the PDA end off, has one form of jumper
or another, but still only the 3 wires going into the RJ connector for
the GPS..
Reversing pins 2 and 3 will not allow the receiver to "turn on".
Open for suggestions, or being pointed to sources for finishing this
cool little setup for aprs....
Thanks in advance,
Robbie, wa9inf
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Subject: Re: Q-Construct..
From: Robbie <mwrobertson@comcast.net>
Date: Tue, 07 Oct 2003 13:18:40 -0500
X-Message-Number: 27
I should have been more specific I guess.. I did google for "other"
sites, since www.aprs-is.net was "down", :-)
Thanks, Robbie
KC7ZRU wrote:
>Robbie wrote:
>
>>Since I can not access www.aprs-is.net has anybody got another source
>>to view the Q-Constuct information??
>>
>>Thanks,
>>
>>Robbie, wa9inf
>
>Yea, use the Google cache for that site:
>
>http://216.239.57.104/search?q=cache:4tiRa1y30HwJ:www.aprs-is.net/q.htm+&hl=ene
&i=UTF-8
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[commercial content deleted]
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Subject: Re: Open-Source TNC anyone? [was: The APRSteward SPAM filter [was:
New Mexico LANn-N?]]
From: Henk de Groot <henk.de.groot@hetnet.nl>
Date: Tue, 07 Oct 2003 19:58:02 +0200
X-Message-Number: 29
Hello Adi,
At 09:32 7-10-03 -0500, Adi Linden wrote:
>Is anybody working on an open-source TNC?
Besides what has been said, there is also open source TNC firmware called
TheFirmware. It is used in many TNC's in Europe. It uses WA8DED Host mode
and knows KISS. The EPROM is meant for TNC-2 type TNC's. The software TNC's
TFPCX and TFX, used to drive simple modems from a PC, also use this same
firmware as basis.
The source of TheFirmware is available under a so called ALAS license,
which is a GNU license with an extra requirement that the source may only
be used for HAM radio purposes. Within that limit you may use it, modify it
etc. The latest source is TF27B and has been out for many, many years. It
is distributed by NORD><LINK, a group of packet pioneers that were very
active end eighties until mid nineties until some of them started to work
on AMSAT Phase III-D alias AO40 (DB2OS) and others left te university to do
payed work (DB7KG).
If you want to have a look or want to reuse their software, you can find
the software on <http://www.nordlink.org/>. The only problem you may have
with it is that the comment in the source is German (depends on you
knowledge of German)...
Kind regards,
Henk.
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Subject: Re: Open-Source TNC anyone? [was: The APRSteward SPAM filter [was:
New Mexico LANn-N?]]
From: Adi Linden <adil@adis.on.ca>
Date: Tue, 7 Oct 2003 14:09:45 -0500 (CDT)
X-Message-Number: 30
>>>There is a group, using the Atmel Mega-8 processor.
>>
>>I looked at playing with Atmel but so far never got into it, prefer the
>>PIC instead.
>
>If I may ask, WHY?
>
>I find the internal "architecture" of the pic rather hideous.
Short answer: Because I've used the PIC before and I have a good variety
of them on hand.
Long answer: For me this microcontroller development stuff is just a
hobby. I've got a box full of obsolete junk (Motorola development kits
and other assorted similar things) that I played with over the years -
just to find out that the controllers in those kits were impossible to get
in small non-production quantities. Heck, some of them were
impossible to get period or just way beyond my budget (like those 8051
controllers with piggyback eproms 20 years ago). Some years ago I
discovered the PIC. I did a few projects with it over the years. Parts
availablility has never been a problem, Microchip even sends samples if I
need just a couple of new devices to play with. I guess I am just a
satisfied, loyal customer when it comes to PIC.
I've looked at the Atmel AVR family. Having very low cost C development
tools available is certainly attractive. But that comes at the cost of
having to learn yet another assembly language.
If there was a project using an AVR that I am interested in I could be
convinced to get used to this processor. For example, there is Ken Arck's
RC-210 repeater controller I am interested in playing with. Unfortunately
it uses BASIC instead of C or assembly. I think I'd rather roll my own PIC
based controller in this case instead of getting into the AVR and BASIC.
Adi
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Subject: Re: Open-Source TNC anyone? [was: The APRSteward SPAM filter [was:
New Mexico LANn-N?]]
From: Adi Linden <adil@adis.on.ca>
Date: Tue, 7 Oct 2003 14:18:39 -0500 (CDT)
X-Message-Number: 31
>>Is anybody working on an open-source TNC?
>
>Besides what has been said, there is also open source TNC firmware called
>TheFirmware. It is used in many TNC's in Europe. It uses WA8DED Host mode
>and knows KISS. The EPROM is meant for TNC-2 type TNC's. The software TNC's
>TFPCX and TFX, used to drive simple modems from a PC, also use this same
>firmware as basis.
I heard of open-source firmware for the TNC-2 but I never really
investigated it. I don't have any TNC-2 hardware. I think the TNC-2
hardware could be replaced with a modern microcontroller and a lot less
additional parts.
>The source of TheFirmware is available under a so called ALAS license,
>which is a GNU license with an extra requirement that the source may only
>be used for HAM radio purposes. Within that limit you may use it, modify it
>etc. The latest source is TF27B and has been out for many, many years. It
>is distributed by NORD><DEFANGED_LINK, a group of packet pioneers that were
very>active end eighties until mid nineties until some of them started to work
>on AMSAT Phase III-D alias AO40 (DB2OS) and others left te university to do
>payed work (DB7KG).
>
>If you want to have a look or want to reuse their software, you can find
>the software on <http://www.nordlink.org/>. The only problem you may have
>with it is that the comment in the source is German (depends on you
>knowledge of German)...
I guess I understand German. I grew up in Germany and moved to Canada at
23 years of age...
Adi
--
Adi Linden | va3adi | va3adi@adis.ca | http://adis.ca
+-----------------------------------------------------------------+
IRLP Node 2590 in Sioux Lookout, Ontario
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Subject: Re: Open-Source TNC anyone? [was: The APRSteward SPAM filter [was:
New Mexico LANn-N?]]
From: "Scott Miller" <scott@opentrac.org>
Date: Tue, 7 Oct 2003 12:41:49 -0700
X-Message-Number: 32
>just to find out that the controllers in those kits were impossible to get
>in small non-production quantities. Heck, some of them were
Never had a problem with the Motorola chips. The KX8 runs about $5.60 in
single-unit quantities from Digikey. The GP32 is closer to $10. And I like
the Codewarrior development enviroment.
>I've looked at the Atmel AVR family. Having very low cost C development
>tools available is certainly attractive. But that comes at the cost of
>having to learn yet another assembly language.
Most of my HC08 projects don't use any assembly. I'm interested in the GCC
setup for the AVR - never tried using GCC for microcontrollers, or any kind
of cross-compilation for that matter.
>it uses BASIC instead of C or assembly. I think I'd rather roll my own PIC
>based controller in this case instead of getting into the AVR and BASIC.
For a TNC, the problem you're going to run into with any of these is that
they don't have external address busses and typically don't have enough
internal RAM to buffer incoming packets. I just got some Ramtron serial
FRAM samples - I'll probably wind up using one of those for my antitracker
design. At least the interface is easy to bit bang...
Scott
N1VG
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Subject: Re: Solar tetroon aloft now - tracker apparently fa iled
From: "Scott Miller" <scott@opentrac.org>
Date: Tue, 7 Oct 2003 12:48:00 -0700
X-Message-Number: 33
>I design and manufacture them. I've been working with various types of
>solar Montgolfieres for the past five years and have recently been refining
>my solar tetroon designs.
Cool. So how long before we see a hobbyist balloon with a range like the
old Japanese Fugu bombs? If they could get those things across the Pacific
with just mechanical timers, we ought to be able to do a lot better with
GPS and microcontrollers.
Of course, they had the advantage of using hydrogen... more lift and less
leakage... and cheaper, too... I just don't want to be anywhere near such a
device during the filling or launch.
What's the name for a hot air balloon / helium balloon combination?
Scott
N1VG
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