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MVR-64 multiverter Release Notes
Firmware version: 4.2, 2020-04-28, Document status: 2020-04-28
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NOTE: Although the firmware has been extensively tested, there is no guarantee 
that everything is 100% compatible. If you run into problems, please drop us a 
note to <info@appsys.ch> and we will look into it. Most things can be fixed via 
a firmware update.


FIRMWARE VERSIONS
-----------------
- This firmware package 4.2 consists of the following firmware sub-components:
  FPGA:    4.2
  Control: 4.2
  Dante:   4.2.0.0
  

REMOTE CONTROL + CHANNEL-WISE ROUTING
-------------------------------------

- Channel-wise routing can only be done with the remote control (by web or command line)
  because the frontpanel has not enough controls to do this in a meaningful way.  

- Web control can be reached under the DNS name of the MVR-64 Dante device 
  (see Dante Device Manager), e.g. "MVR-64-xxxxxxx.local" (with xxxxxx beeing 
  individual to each device). Alternatively, you may use the IP address directly.
  
  It is possible to use the web control from a separate network than the Dante audio
  network. To do so, configure the multiverter's network interface as "Redundant" using the
  Dante controller. The Dante PRIMARY port serves as audio interface and must be connected to 
  the Audio network, while the Dante SECONDARY port must be connected to a separate control network. 
  
- Telnet control can be reached under the same IP, on port 2300, no password required.
  Type "help" to see which commands are available.

- USB command line control is via USB serial terminal on the first port of the FT2232 device 
  listed in the device manager. Communication parameters are 115200,8N1,no flow control. Make
  sure "Local Echo" is set to ON in you terminal emulator, otherwise you will not see what 
  you're typing.
  
- MIDI can be used to recall presets.
  To do so, send a "Program Change" messages (program 00 = Preset 1...program 11 = Preset 12).    
  The MIDI channel is set to 1 by default but can be altered using function "07". (Note: The 
  channel is a per-preset setting, if you need to change it you will do  so in all 12 presets!)
 
  
GENERAL
-------
- Varispeed operation is not supported

- When up- or downgrading from firmware 4.0 (only 4.0!) to any other version, the stored presets
  are reset to the defaults. 


ADAT/SPDIF/AES3
----------
- 32kHz/64kHz/128kHz samplerates are not supported.
 
  
AES50
-----
- 32/64/128/176.4/192 samplerates are not supported

- The MADI-TP port can be switched to function as second AES50 port (adapter cable 
  required due to different pinout).  

Dante
-----
- Make sure to use the latest version of the Dante Virtual Soundcard, especially after
  upgrading to Windows 10. Older versions are likely to be broken and produce incorrect
  audio ("digital noise").
  

MADI-TP
-------
- The DiGiCo/Harman/Soundcraft/Studer MADI-TP is supported via the optional MTA-64 external adapter.
  See http://appsys.ch/MTA-64 for details.

- Linking two MVR-64 over the Extension port ("HDMI") *with* a MTA-64 adapter attached is currently not
  supported. Note that this is a software restriction only (both MVR-64s are trying to configure the
  MTA-64 which results in a mess), and in a future firmware release an option will be added to ignore 
  the configuration of the attached MTA-64 on one MVR-64.

- Up to two MTA-64 are supported by configuring the AES50 port as second MADI-TP. For this, the second  
  MTA-64 needs to be attached with the AES50/MADI-TP pinswap cable (see MVR manual) and needs to be jumpered 
  internally to "Address 2" (open the MTA-64 to move the jumper).
  

Wordclock
---------
- Input termination is default OFF.
  To switch termination On
  1) Remove power from the device 
  2) Open the cover (2x Torx T10 screws) and lift it on the side of the screws
  3) Locate the red DIP switch at the wordclock jack. Move Switch #1 to "ON" to 
     enable 75 ohms termination.


RS485
-----
- Not implemented, function will be supplied later as firmware update.


PC (USB)
-------
- Only used for the command line remote control, and firmware updates.
  This is *NOT* a PC sound interface! If you want to use the MVR as soundcard, 
  connect it via Dante to your PC and  use the Dante Virtual Soundcard software.
