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KP-Series Keypanel and Expansion Panel Firmware
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These are the release notes for the firmware for the KP-Series keypanels.

This firmware supports the KP-4016 and KP-5032 keypanels. The same firmware
image is also used for the EKP-4016 (1RU expansion panel).

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Boot Loader and Client Image
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The firmware is structured in two parts: The boot loader and the client image.
On power-up, the boot loader looks for a valid client image. If present,
control is passed to it; otherwise, the boot loader remains in control.

The firmware consists of the following files:

  - KP-Series_boot.mot     - Boot loader, downloadable from AZedit
  - KP-Series_client_z.mot - Client image (compressed), downloadable from AZedit

You can force the keypanel to remain in the boot loader, even if a valid
client image is present, by holding the right-most key (#16 on a KP-5032,
the CWW key on a KP-4016) down and the key next to it (#15 / Mic Mute) up
while the panel is being powered on.

While in the boot loader, the panel will display a message that it needs a
download. The panel will communicate with the matrix (serially), and will
accept downloads; nothing else will work. There will be no audio; the talk
and listen keys, the keypad, and the shaft encoders will all be non-functional.
The boot loader will also accept downloads via its Ethernet connection from
the FWUT (Firmware Upload Tool).

You can download a new boot loader image while the keypanel is running in
boot loader mode.

You can also enable downloading of a new boot loader image while the keypanel
is running the client image. Press and hold both shaft encoders, then
enter the Menus by pressing the Menu key, and then release the shaft encoders.
The Service menu will now have a new menu item called Boot Code. This menu
shows the current boot loader version, and offers a checkable menu item called
Allow Download. Checking this option allows you to download a new boot loader
via AZedit.

If an EKP-4016 is connected, and it contains a different client image than
the KP-4016 / KP-5032, then the keypanel's client image is automatically
transferred to the EKP. The EKP will display a Firmware Download icon, but
will otherwise remain fully functional. The transfer takes a couple of minutes,
after which the EKP will reprogram its flash and restart.

Other components (boot loader, FPGA, fonts, etc.) are also transferred from
the main panel to the EKP automatically, as necessary.

If an EKP ends up with a client image that is corrupt or not present, it will
enter the boot loader, which behaves the same as on the KP-4000, except that
it expects to communicate with a KP-4000, and not the intercom.

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Saved Configuration
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The keypanel saves various settings to configuration flash. On start-up, it
looks for a valid configuration; if it finds one, it uses this to determine the
initial configuration. If there is no (valid) saved configuration, it starts up
with the factory default configuration.

The current configuration is only written to flash when the menu item
Save Config is selected.

The keypanel can be restored to the factory default configuration by selecting
Reset Config from the Service menu.

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Change History
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Version 1.0.5 (CRC = 4a16)
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* Domain names entered in IPedit were being truncated to 31 characters. Fixed.

* Chime durations of 5 minutes weren't being handled properly. Fixed.

* Added SNMP support

* Allow access to hidden menu items, even if passwords are enabled

  Hidden menu items (e.g. display FPGA version) can be accessed by pressing and
  holding both shaft encoders and then hitting the Menu button. However, this
  didn't work if menu passwords were enabled. Fixed.

* Fixed display of components in FWUT

  In the Firmware Upload Tool, if the option "Show All Components" is
  selected, the FWUT might not show all the components correctly. Fixed.


Version 1.0.3 (CRC = 1a35)
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* Mic Mute key can be configured as momentary

  The Mic Mute key can now be set to any of the following:
    - Disabled
    - Momentary (mute while held)
    - Toggled (push-on / push-off).

* If adjustment of the matrix input volume control was disabled, then the matrix
  input would not be mixed (i.e. you would not hear it at all). Fixed. This
  also applies to the Aux Inputs.

* Default minimum volume for matrix input changed to -6dB

  If the minimum volume was set to Mute, it will now be changed to -6dB (but
  can be changed through the menus). If the minimum volume has been changed
  to anything else, it is not touched.

* Tone output level corrected

  When the tone generator was enabled, the tone output level was always +9dB,
  and did not change if the panel output level was adjusted. Fixed.
  Now, the tone output level is correct, and tracks the configured output level.

* Could not set key assignment colors for remote intercoms. Fixed.

* Expansion panel did not indicate progress when downloading icons. Fixed.


Version 1.0.2 (CRC = c9c1)
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* Initial release