PEMA Firmware Revision History:
------------------------------

3.2 - Released 01/10/2017
      - Fixed clip LED threshold.
      - Added fault log reporting & mute indication for DSP overage faults.
      - Improved thermal monitoring accuracy & countermeasures.

3.1 - Released 04/29/2016
      - Fixes power-on recognition of Cobranet option.
      - Fixes power-on recall of Cobranet 96K sampling rate.
      - Support for DC fault detection added.

3.0 - Released 11/19/2014
      - Supports FIR filters.

2.9 - Released 6/27/2014
      - Now supports DANTE option card.
      - Corrected preset recall when security level set to "Preset Recall Access".

2.8 - Released 7/22/2013
      - Reduced rate of accessing RTC (~200Hz to more reasonable 1Hz).
      - Corrected Daylight Saving Time handling

2.7 - Released 7/12/2013
      - Software fix for flash-corruption-after-power-interruption problem.

2.6 - Released 4/3/2013
      - Corrected potential packet size problem when sending options.
      - Corrected potential use of uninitialized pointer when receiving unknown DSP error.
      - Adds temperature-sensitive fan speed control.  Details on fan speed:
            * There are two speeds (low, high).
            * High kicks on at about 70C.
            * High drops to low when temperature is below 60C.

2.5 - Released 10/19/2012
      - Fixed bulk load preset corruption caused by truncating blocks being appended.
      - Corrected padding with OPT_PAD when the number of bytes written to flash is odd.

2.4 - Released 5/21/2012
      - Corrected handling of RTC events that occur only on specific days vs. all days.
      - Removed logging of Host/DSP retries because it doesn't represent an error.

2.3 - Released 12/1/2011
      - Fixed repetitive insertions of FBS filters when depth maxed-out.
      - Fixed problem getting FBS filter control parameters.
      - Corrected mis-reporting of DSP cycles for FBS and ANC
      - Improved handling of thermal protection events.
      - Thermal protection timing is now independent of number of channels.
      - Added reporting of RTC events.
      - Corrected handling of daylight savings time.
      - Improved handling of security username and password changes.
      - Corrected problem where some log messages could be lost.

2.2 - Released 12/09/2010
      - Updated RS-232 handler to accept any value from 00 to 0F for Header Byte 5

2.1 - Released 9/22/2010
      - Set number of EtherSound inputs to always be eight.

2.0 - Released 7/21/2010
      - Corrected logic that reads the ID sense resistor.

1.9 - Released 7/15/2010
      - Changed thresholds used to determine model from sense resistor.
      - Return preamp gain on channel 1 to 0dB when PBX switch disengaged.

1.8 - Released 7/6/2010
      - Made thermal channel protection fault reporting edge sensitive.
      - Added fault log entry when thermal channel protection ends.
      - Changed "low expected output level" from "thermal" to "channel" fault type.
      - Adjusted temperature constants for different pull-up resistor (9.76k verses 15k).

1.7 - Released 6/29/10
      - Fixed problems with fault logging.

1.6 - Released 6/23/10
     - Fixed standby mode status LED indication
     - Fixed short circuit fault LED indication
     - Changed HPF defaults: not populated on low-Z units or aux outs on 4-channel units.

1.5 - Released 5/19/10
      - Feedback suppressor (FBS) bypass/unbypass fixed
      - More robust DSP runt message elimination
      - Blocked FBS updates during bulk update
      - Fixed sub preset handling

1.4 - Released 5/11/10
      - Fault detection LED fix
      - Added 125W models

1.3 - Released 4/23/10
      - Fault LED fixes
      - Prevents FBS on outputs
      - Fixes full-amplitude signal inversion

1.2 - Released 3/26/10
      - Various fixes

1.1 - Released 3/11/10
      - updated name to PEMA
      - Various fixes

1.0 - Initial Release 2/25/10