; u2r, firmware for u2R (u2R), change log
; by Martin Bujdak, microHAM
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v3.5, released 180809
  - pttOutActive added to PTT Monitor
v3.4, released 161104
  - support for keyer mode control independent on focus
v3.3, released 160415
  - Added possibility to set software PTT and software lock from router.
  - If band data outputs and focus control outputs on ACC are controlled
    from control protocol they are left unchanged on USB disconnect
    instead of switching them to default.
v3.2, released 140114
  - optional AZERTY keyboard layout
v3.1, released 131204
  - new optional feature FSK stuffing: Gaps in FSK stream from computer are
    adaptively filled with letter or figure shifts to achieve continuous stream.
v3.0, released 131022
  - Now FSK can be generated at 45.45 Bd instead of aproximate 45 Bd.
v2.2, released 130416
  - Support to PTT monitor
v2.1, released 120217
  - bug fixed: "Restore serial CW" didn't work.
v2.0, released 120125
  - PTT lead can be applied in two different ways:
     (1) PTT is delayed to PA/LNA PTT
     (2) PTT is started simultaneously with PA/LNA PTT and CW is delayed
    Up to this version the second case was used only when PTT was initiated by
    WinKey or serial CW. In all other cases (like foot switch, serial PTT,
    WK command PTT ...) the first way was used.
    Since this version it is performed consistently with the current mode.
    The second case is used in CW mode and the first case in all other modes
    regardless of what initiates PTT.
v1.6, released 120118
  - WinKey parameter "1st extension" is controlled automatically now.
    If PTT output is not generated the 1st extension is utilized to take account
    of new parameter T/R delay. The "Keying compensation" is always cleared.
v1.5, released 101020
  - bug fixed: Status of PTT from radio 2 was incorrectly reported.
v1.4, released 100922
  - Support to MMVARI FSK sending in RTTY mode added
  - Headphones switching settings was changed. Stereo signal now switches
    between two sets of settings.
v1.3, released 100816
  - bug fixed: When "Use WinKey PTT" was unchecked audio was not correctly
    switched.
  - bug fixed: When "Use WinKey PTT" was unchecked PTT IN forced manual TX
    audio state
  - bug fixed: Audio switching glitch at the end of paddle send
v1.2, released 100616
  - bug fixed: Reading of FH-2 keypad was not functional.
v1.1, released 100125
  - semi-automatic focus control
  - PTT IN handling
v1.0, released 091222
  - First release of u2R firmware.