; mpk, firmware for micro KEYER II (MK2), change log
; by Martin Bujdak, microHAM
--------------------------------------------------------------------------------

v4.6, released 100616
  - FT-5000 added to list
  - bug fixed: In rare situations, keyer indicated incorrect WPM or marked
    proper voltage as LOW.
  - bug fixed: Bug in protocol table searching could cause internal CAT decoder
    to be functionless.
v4.5, released 100202
  - UltraBeam 180/bidir support added
v4.4, released 100125
  - Ultra Beam support on iLINK serial port
  - changes in CAT decoder in accordance with changes in router
  - some other bug fixes and improvements in CAT decoder
  - PA and LNA tails
  - SteppIR DB18, DB36, DB36+80mDipole added to the list.
v4.3, released 091222
  - Icom IC-7600 and IC-475 support.
  - SteppIR SDA 100 Controller support
v4.2, released 081212
  - bug fixed: Hysteresis in SteppIR frequency control was incorrectly
    implemented.
  - bug fixed: Radio channel extended settings concerning CAT decoding was
    initialized incompletely when computer sent radio channel settings in old
    short version format. It couldn't caused problems when used with actual
    router.
v4.1, released 081118
  - bug fixed: TUNE function didn't work correctly in VOICE mode.
  - Small internal change in CAT decoder.
v4.0, released 081114
  - Internal CAT decoder. Now decoding works in standalone mode too.
  - Now CW in VOICE doesn't generate PTT1/PTT2 at all. It is possible to switch
    between "Semi Break-In" and "QSK" using "Force QSK" keyboard function.
  - New items can be displayed: preset name, keyer mode.
  - Now PTT is not locked when TX frequency is out of SteppIR range.
  - Keyer locks PTT when SM reports "Out of bands".
  - Support for older versions of SteppIR controller.
v3.3, released 080812
  - Audio stream from computer overrides microphone on MK2 (optional).
v3.2, released 080723
  - Changes in iLINK protocol (requires SM v1.3)
  - Station master locks are indicated on display.
v3.1, released 080704
  - Keyer locks PTT1/2 and CW when SM reports "no TX antenna".
  - Keyer reports sleep mode status to SM.
v3.0, released 080624
  - Now it is possible to couple the keyer with a Station Master via iLINK
    connection. It allows to merge their PTT sequencers and transfer decoded
    CAT frequency from keyer to Station Master.
  - Optionally paddle can generate CW in VOICE mode too. In this case the PTT
    pattern for CW mode is used.
v2.4, released 080305
  - bug fixed: PTT1/2 settings, audio switching settings and TX monitor levels
    was updated on keyer mode change but was not updated when they was changed
    from router.
  - Now PTT is automatically generated when FSK message is played even if no F10
    or foot switch was pressed.
  - In QSK mode the signal INHIBIT is generated for the duration defined
    by Keying Compensation parameter instead of PTT Lead. During this time
    the CW output is locked. Parameter "Keying Compensation" is sended
    to WinKey only in QSK mode.
  - Now WinKey command 0A (Clear Buffer) drops Simulated PTT too.
v2.3, released 080211
  - WinKey command 0x18 (PTT On/Off) is filtered out. Instead of sending it
    to the WinKey the PTT is generated by firmware. This ensures hot switch
    protection. Paddle drops such simulated PTT in all modes.
v2.2, released 080127
  - SteppIR control added to iLink port functions.
  - Oops switch (message termination by footswitch) now works only for message
    playback and not for recording.
  - bug fixed: After PTT was first time raised the lower display line freezed
    with displayed welcome message. Bug was introduced in v2.1.
  - minor bug fixed: Potential deadlock in situation when PS2 CLK is faulty
    shortened to ground was eliminated.
v2.1, released 071211
  - Computer can directly write strings to display.
v2.0, released 071122
  - Some changes in keyer protocol and settings format was introduced to be
    compatible with router v5.1.0. Hence firmware MUST be upgraded and power-up
    settings MUST be again stored to EEPROM of keyer.
  - Firmware utilizes extended frequency/mode information from router CAT
    decoder:
    - Keyer mode follows TX mode.
    - Any of RX, TX, operating, VFO A or VFO B frequency can be displayed.
    - CI-V can report any of those frequencies too.
  - bug fixed: Sleep mode was permanently enabled regardless of settings.
  - BackSpace on PS2 keyboard now functions as ESC.
v1.2, released 071017
  - serious bug fixed: Under some circumstances a data sended from computer
    to keyer could be lost. It caused various undesirable keyer behavior
    (incorrect PTT configuration, incorrect WK commands, lost data for WK, ...)
  - bug fixed: PS2 keyboard/pad sporadically freeze in state in which it didn't
    respond to key strokes.
  - CW output is allowed only in CW mode.
  - PTT from paddle is generated only in CW mode. WinKey command "PTT On/Off"
    still can be used to generate PTT in non CW modes.
  - bug fixed: When DVK message was started from Control protocol the message
    "PLAYING MSG x" stay displayed on MK2 display even message was finished.
    The same for recording.
v1.1, released 070912
v1.0, released 070905 (testing)
  - First release of MK2 firmware.