mirror of https://github.com/wb2osz/direwolf.git
315 lines
7.5 KiB
Plaintext
315 lines
7.5 KiB
Plaintext
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Revision history
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----------------
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Version 1.2 -- June 2015
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* New Features:
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Improved decoder performance.
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Over 1000 error-free frames decoded from WA8LMF TNC Test CD.
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See "A-Better-APRS-Packet-Demodulator.pdf" for details.
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Up to 3 soundcards and 6 radio channels can be handled at the same time.
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New framework for applications which listen for Touch Tone commands
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and respond with voice. A sample calculator application is included
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as a starting point for building more interesting applications.
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For example, if it hears the DTMF sequence "2*3*4#" it will respond
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with the spoken words "Twenty Four."
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Reduced latency for transfers to/from soundcards.
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More accurate transmit PTT timing.
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Packet filtering for digipeater and IGate.
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New command line -q (quiet) option to suppress some types of output.
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Attempted fixing of corrupted bits now works for 9600 baud.
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Implemented AGW network protocol 'y' message so applications can
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throttle generation of packets when sending a large file.
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When using serial port RTS/DTR to activate transmitter, the two
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control lines can now be driven with opposite polarity as required
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by some interfaces.
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Data Carrier Detect (DCD) can be sent to an output line (just
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like PTT) to activate a carrier detect light.
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Linux "man" pages for on-line documentation.
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AGWPORT and KISSPORT can be set to 0 to disable the interfaces.
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APRStt gateway enhancements: MGRS/USNG coordinates, new APRStt3
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format call, satellite grid squares.
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* Bugs fixed:
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Fixed "gen_packets" so it now handles user-specified messages correctly.
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Under some circumstances PTT would be held on long after the transmit
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audio was finished.
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* Known problems:
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Sometimes writes to a pseudo terminal will block causing the received
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frame processing thread to hang. The first thing you will notice is that
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received frames are not being printed. After a while this message will appear:
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Received frame queue is out of control. Length=... Reader thread is probably
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frozen. This can be caused by using a pseudo terminal (direwolf -p) where
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another application is not reading the frames from the other side.
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Version 1.1 -- December 2014
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* Changes since beta test version.
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It is still highly recommended, but no longer mandatory, that
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beaconing be enabled for digipeating to work.
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* Known problems.
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Sometimes kissattach fails to connect with "direwolf -p".
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The User Guide and Raspberry Pi APRS document have a couple work-arounds.
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Version 1.1 -- Beta Test 1 -- November 2014
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* New Features:
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Logging of received packets and utility to convert log file
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into GPX format.
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AGW network port formerly allowed only one connection at a
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time. It can now accept 3 client applications at the same time.
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(Same has not yet been done for network KISS port.)
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Frequency / offset / tone standard formats are now recognized.
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Non-standard attempts, in the comment, are often detected and
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a message suggests the correct format.
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Telemetry is now recognized. Messages are printed for
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usage that does not adhere to the published standard.
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Tracker function transmits location from GPS position.
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New configuration file options: TBEACON and SMARTBEACONING.
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(For Linux only. Warning - has not been well tested.)
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Experimental packet regeneration feature for HF use.
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Will be documented later if proves to be useful...
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Several enhancements for trying to fix incorrect CRC.
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- Additional types of attempts to fix a bad CRC.
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- Optimized code to reduce execution time.
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- Improved detection of duplicate packets from different fixup attempts.
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- Set limit on number of packets in fix up later queue.
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Beacon positions can be specified in either latitude / longitude
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or UTM coordinates.
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* Bugs fixed:
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For Windows version, maximum serial port was COM9.
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It is now possible to use COM10 and higher.
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Fixed issue with KISS protocol decoder state that showed up
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only with "binary" data in packets (e.g. RMS Express).
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An extra 00 byte was being appended to packets from AGW
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network protocol 'K' messages.
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Invalid data from an AGW client application could cause an
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application crash.
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OSS (audio interface for non-Linux versions of Unix) should
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be better now.
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Version 1.0a May 2014
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* Bug fix:
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Beacons sent directly to IGate server had incorrect source address.
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Version 1.0 May 2014
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* New Features:
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Received audio can be obtained with a UDP socket or stdin.
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This can be used to take audio from software defined radios
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such as rtl_fm or gqrx.
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9600 baud data rate.
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New PBEACON and OBEACON configuration options. Previously
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it was necessary to handcraft beacons.
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Less CPU power required for 300 baud. This is important
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if you want to run a bunch of decoders at the same time
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to tolerate off-frequency HF SSB signals.
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Improved support for UTF-8 character set.
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Improved troubleshooting display for APRStt macros.
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In earlier versions, the DTMF decoder was always active because it
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took a negligible amount of CPU time. Unfortunately this sometimes
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resulted in too many false positives from some other types of digital
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transmissions heard on HF. Starting in version 1.0, the DTMF decoder
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is enabled only when the APRStt gateway is configured.
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Version 0.9 November 2013
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* New Features:
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Selection of non-default audio device for Linux ALSA.
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Simplified audio device set up for Raspberry Pi.
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GPIO lines can be used for PTT on suitable Linux systems.
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Improved 1200 baud decoder.
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Multiple decoders per channel to tolerate HF SSB signals off frequency.
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Command line option "-t 0" to disable text colors.
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APRStt macros which allow short numeric only touch tone
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sequences to be processed as much longer predefined sequences.
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* Bugs Fixed:
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Now works on 64 bit target.
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* New Restriction for Windows version:
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Minimum processor is now Pentium 3 or equivalent or later.
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It's possible to run on something older but you will need
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to rebuild it from source.
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Version 0.8 August 2013
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* New Features:
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Internet Gateway (IGate) including IPv6 support.
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Compatibility with YAAC.
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Preemptive digipeating option.
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KISS TNC should now work with connected AX.25 protocols
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(e.g. AX25 for Linux), not just APRS.
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Version 0.7 March 2013
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* New Features:
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Added APRStt gateway capability. For details, see:
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APRStt-Implementation-Notes.pdf
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Version 0.6 February 2013
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* New Features:
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Improved performance of AFSK demodulator.
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Now decodes 965 frames from Track 2 of WA8LMF's TNC Test CD.
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KISS protocol now available thru a TCP socket.
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Default port is 8001.
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Change it with KISSPORT option in configuration file.
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Ability to salvage frames with bad FCS.
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See section mentioning "bad apple" in the user guide.
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Default of fixing 1 bit works well.
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Fixing more bits not recommended because there is a high
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probability of occasional corrupted data getting thru.
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Added AGW "monitor" format messages.
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Now compatible with APRS-TW for telemetry.
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* Bugs Fixed:
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None.
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* Known Problem:
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The Linux (but not Cygwin) version eventually hangs if nothing is
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reading from the KISS pseudo terminal. Some operating system
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queue fills up, the application write blocks, and decoding stops.
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* Workaround:
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If another application is not using the serial KISS interface,
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run this in another window:
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tail -f /tmp/kisstnc
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Version 0.5 March 2012
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More error checking and messages for invalid APRS data.
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Version 0.4 September 2011
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First general availability.
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