Release Notes for EN2M - Main Firmware

This article lists the release notes of the EN2M (Main Processor) Firmware (500-1009). This firmware controls the major functions of PBS operation.

This firmware is no longer being developed. However, the latest firmware can be found at this link:

EN2M Firmware

Product applicability

Applies to model EN2 PBS (Push Button Station for 2W EZComm Navigator) only.

EN2 (EOL)

Filename: 500-1009XZZ.en2m (X is the Major Value, ZZ is the Revision Value).

Note: Firmware can only be updated using the EZ APS ToolBox PC application and a USB (Type A to B) cable plugged directly into the bottom of the EN2.


EN2M v4.15 (2015-09-23)

Critical Update

EN2M Firmware

  • Remove Alt Config feature controlled by GP Input to eliminate false triggering
  • Fix update all - fails when using CONFIG due to extra write time for Locate Vol Min backup if additional items are included done in section update2w - backup not written until end

EN2M v4.14 (2015-03-17)

  • Add backup eeprom location for Locate Tone Min (address 4) to tolerate unexpected corruption of value at address 4:
    • Use address 44 for backup location
    • If value at 4 is out of range, copy value from 44

EN2M v4.13 (2014-09-25)

  • Add counter to channel check function
    • Must miss 3 in a row to set ID to none
  • Fix Jael issue where Walk Ping Pong gets out of step if Info Message is playing when Walk starts
  • Add config offset to audio volume reads to fix issue where volume does not change with Calendar event
  • Restore confignum at end of CCU config read to fix issue leaving wrong config after read
  • Change walk message repeat limit from 25 to 60 for walk sound timer set to full walk
  • Turn mute pin off for internal amp when USB connected

EN2M v4.10 (2013-05-23)

  • Special test version for Migma
    • Makes ext button input dual function
    • Enables locate tone when active
    • Places call with a open period of 100-500ms while active
  • Fix 3 issues, starting with latest version sent to Migma
    • 1 - Issue canceling mute when extpushOption in effect
    • 2 - Issue preventing second Walk (Waterloo option) if extd push during Walk
    • 3 - Play Confirmation sound before Info Msg for Migma call

EN2M v4.09 (2012-10-24)

Critical Update

  • SP1 Release
  • Disable Button Down accepted during Walk
  • Fix issues found in test cases 514, 515
    • Second walk does not end properly
  • Fix no second Walk epp mute when pushed during walk rest
  • Adjust timing inside latchtimer to fix btn-dn getting lost when epp on

EN2M v3.30 (2012-02-24)

  • Wait for sp1 (improvements to readword section to help readability and exclude noise (EN2 mode only))
  • Fix Locate Tone 3 plays Tone 4
  • Wait for sp1 (add delay at beginning of readword sub to address bad read causing screaming PBSs)
  • Fix issue requiring extra Extended Push after Walk starts (wst = ext push, svr - button push)

EN2M v3.29 (2011-11-02)

  • Delete codes for volume override in EN2 CCU input section
    • Stops screaming version

EN2M v3.28 (2011-10-24)

  • Fix PingPong not working
    • Bit variables should have been changed to bytes
  • Add delay time before button enable at beginning of Walk Rest Mode
  • Changes button inhibit delay time after Walk to 0.5 seconds

EN2M v3.26 (2011-09-16)

  • Renamed version

EN2M v1.26 (2011-07-29)

  • Fix bug caused by v1.24:
    • Button disabled by skipping Clearance

EN2M v1.25 (2011-07-27)

  • Added delay to button enable at beginning of Clearance
  • Turn on buttonhold at start of Walk
  • Added turn on buttonhold at start of Info Message

EN2M v1.23 (2011-03-10)

Initial Release

  • Further adjustments to volume levels
    • Reduce by 4dB at 55dBA ambient and up
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