AmigaTNC - packet radio modem driver for AMIGA computers
========================================================
(c) 1996-1999 by Alexander Feigl
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DEVELOPER-ONLY DEVELOPER-ONLY DEVELOPER-ONLY DEVELOPER-ONLY DEVELOPER-ONLY
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THIS IS A VERSION OF AMIGATNC WHICH IS INTENDED ONLY FOR
DEVELOPERS. IT MIGHT NOT EVEN RUN AND DOES
NOT WORK PERFECTLY!
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DEVELOPER-ONLY DEVELOPER-ONLY DEVELOPER-ONLY DEVELOPER-ONLY DEVELOPER-ONLY
****************************************************************************
Introduction
============
Do you have a packet radio modem but you want to use a programme which only
can use TNCs in hostmode? Or do you have a modem which uses the AMIGA audio
output and you want to use a programm which doesn't support this? AmigaTNC can
emulate a TNC with both types of modem. Hostmode supporting programmes will
run on a simple modem. Even KISS-only programmes run with AmigaTNC.
AmigaTNC even works with KISS-only TNCs and supports the missing hostmode
interface for these TNCs.
AmigaTNC can be  {"resident in your memory" link "Permanent_Driver" 0}. Other
stations can use you for
digipeating even if your packet radio programme isn't running. Somebody can
even put a message in your "TNC" or connect you and wait until you load your
programme. If you leave your programme, all connects will be kept until you
reset your computer. AmigaTNC works completely in the background. If your
computer is fast enough or you don't mind a speed decrease if a packet
arrives, you can permanently install AmigaTNC in your startup.
AmigaTNC can also be used, if you use an old programme which doesn't have a
frame collector. AmigaTNC itself has a higly efficent frame collector built
in!
Tested configurations
=====================
Amiga 500 / 68000 7 MHz / 1 MB Chip / 2 MB Fast / OS 2.0
Amiga 1200 / 68EC020 14 MHz / 2 MB Chip / 0 MB Fast / OS 3.0
Amiga 1200 / 68030 50 MHz / 2 MB Chip / 4 MB Fast / OS 3.0
Amiga 4000 / 68EC030 25 MHz / 2 MB Chip / 16 MB Fast / OS 3.0
Amiga 4000 / 68060 50 MHz / 2 MB Chip / 16 MB Fast / OS 3.0
Requirements
============
- Kickstart 2.04
- 512 KB memory
- 7MHz or better
Sorry to all Kickstart 1.3 users, but your operating system is really old
fashioned. It's awful to programme I/O handling or command line parsing on
Kickstart 1.3. Please buy a new operating system, the features are great. Or
even better, buy a new Amiga computer!
AmigaTNC does not need much memory, but if you load AmigaTNC, it may be
possible that some programmes don't run anymore because they need all memory
you have. I nobody know who has only 512KB of memory so I cannot test which
programmes run on these machines.
All modem drivers need much CPU time. But I think AmigaTNC should run on all
Amigas. If you have problems receiving packets, then it may be possible that
your Amiga is to slow. I have 2MB of fast memory and I don't have these
problems. If you only have chip memory and your packet programme uses a lot of
bitplanes, it can slow down your whole computer. Buy a turbo board or try
another programme.
Copyright / Distribution
========================
AmigaTNC is distributed under the GNU General Public License version 2 or any
later.
--------------------------------------------------------------------
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History of AmigaTNC
===================
V 1.4 (15 Oct 99) DEVELOPER-ONLY RELEASE
- many things changed I didn't remember
- license chagned to GPL
- intended to spread AmigaTNC to get it to run again
V 1.3 (11 Oct 97)
- BUG FIX: Baudrate calculation was incorrect on PAL systems -
now it should work on all systems
- BUG FIX: Illegal memory access in command SETPARAM. This bug took
me hours and hours of debugging. :-(
- Added new timer handling to support multiple AmigaTNC units
(shared timer client)
- Added KISS/SMACK/Flexnet-CRC-KISS support
- Added shared timer modem mode (still experimental)
- Added multi port mode (still experimental)
- Added P command to change the protocol identifier
- Automatic installation script for common hardware
- Changed history : newest changes first
V 1.2b (03 Mar 97)
- Internet / Aminet release
V 1.2 (29 Jan 97)
- BUG FIX: Execbase was deleted in some rare cases - hard crash
- New driver modes : BAYCOMMODEMHALF and BAYCOMAUDIOHALF --> with special
cables you should be able to use serial port AND packet radio modem
(you need a driver which allocates RXD/TXD only)
- New keywords : MODEMBAUD / SOFTWAREDCD
V 1.1
- BUG FIX: Host link status on monitor channel was incorrect
- BUG FIX: EOF mode was not supported (AHP4 incompatibility)
- BUG FIX: Driver could be deleted while connected if device is not opend
- Now frame reject delivers correct code
- Command parser routine changed for non-space commands
- Delaying acknowledgement frame generation until channel is free
- Optimized programme code
V 1.0
First released version. It was hard work to finish it. It still is not
complete but I wanted to release AmigaTNC because many Amiga packet users are
not satisfied by their packet radio programme. (some programmes seem to crash
every few minutes). With AmigaTNC they should be able to use nearly every
packet radio programme with both types of modems. Thanks to all testers.
Without them this programme might have dozens of bugs.
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