Firmware for the Minimus2
DIG2 is Güralp Systems’ firmware for
Minimus2 and Minimus Lite digitisers.  These can be recognised by
their serial numbers, which will be of the form
MINL-XXXX.  For
digitisers with serial numbers of the form
MIN-XXXX, please see
the Release Notes for dig
page.
Contents
Finding the currently installed version
To determine the current firmware, run Güralp's free Discovery software
and find the entry for your digitiser on the main page.  The firmware version
is displayed, as highlighted below:
If the firmware version is not displayed, select
 from the 
sub-menu of the  menu:
Upgrade instructions
  You should always back up and verify any data from
    your device's SD card before upgrading to avoid any risk of data
    loss.
This procedure only applies to Minimus 2 and Minimus Lite
    digitisers.  These can be identified by a serial number beginning 
    MINL- or, in Discovery,  by the identifier
    Minimus Lite in the System
    column of the main display.  Do not attempt this procedure with any
    other equipment or you may cause serious damage.
Overview
Minimus2 / Minimus Lite digitisers are not yet supported by Discovery's
 system.  Firmware updates are
currently only possible using the 
facility.  To perform the upgrade, follow the instructions below.
The Procedure
    - 
        
Download the latest firmware build from here and save the file.
     
    - 
        
Open the Discovery software and locate the digitiser to be upgraded.
     
    - 
        
Right-click on the digitiser to upgraded:
        
            - Right-click in the LAN Address column
                if you can access the digitiser over your local area network;
                otherwise
 
            - right-click in the WAN Address column.
 
        
     
    - 
        
Select  from the context menu:
        
     
    - 
        
The File Exchange dialog opens.  Either:
        
            - type the path of the firmware image (the file that you saved
                in step one) into the
                 box; or
 
            - click 
                and navigate to the firmware image. 
        
     
    - 
        
Type /ram/minimus2_project.bin into the
         box.
        Double-check your typing.  This must be exactly
            as shown or you risk damage to your digitiser.
        
     
    - 
        
Click 
        
        to begin the firmware upload.
        Do not click
            

            at this stage.
 
     
    - 
        
The File Exchange dialog will be greyed out and the following notice
        will appear:
        
        Do not remove power from the digitiser while the upload is
            in progress.
        The LED in the digitiser will glow a steady blue during the upload, which can
        take up to several minutes.  When the upload is complete, the digitiser will
        reboot automatically and the LED will start flashing as normal.
     
    - 
        
Use the web interface to check the the digitiser has restarted and
        is running the new firmware image.  Once satisfied, return to the File Exchange
        dialog and click 
            
.
     
This completes the procedure.  In case of difficulty, please contact 
.
Important notices regarding the SEEDlink server
  
    
      Limitations and known issues 
        of the SEEDlink server in DIG v1.2 and DIG v2.0 | 
      Details | 
    
    
      | Backfill of a historical segment of samples is not supported - i.e. the
        SEEDLink server in DIG v1.2 only supports live
        streaming of samples | 
      In addition to SEEDLink DATA commands, SEEDLink
        clients can ask for live streaming of samples using SEEDLink
        TIME commands with zero or one arguments.
          
  
        However, because SEEDLink TIME commands with two
        arguments are used to ask for a historical segment of samples, the second
        argument of these SEEDLink TIME commands are always
        ignored by the SEEDLink server in DIG v1.2. In other
        words, SEEDLink TIME commands with two arguments
        are always treated as if they were SEEDLink TIME
        commands with only one argument. | 
    
    
      | Dial-up mode is not supported. | 
      SeedLink FETCH commands are always rejected.  The SeedLink server of
        DIG v1.2 will only operate in “real-time” mode.
       | 
    
    
      | The ‘!’ negation character in stream selectors is not supported. | 
      Negative stream selectors are always rejected.  The SEEDLink server in
        DIG v1.2 only accepts positive stream selectors.
       | 
    
    
      | Leap seconds are not supported. (There are currently no pending leap-seconds.) | 
       | 
    
    
      | SeedLink handshaking in uni-station mode is not supported. | 
      IRIS states that “almost all connections are negotiated as multi-station,
        even if only a single station is requested; uni-station mode, for most
        publicly accessible servers is deprecated.”
        (Iris SeedLink Overview).
       | 
    
    
      | Latency problems. | 
      The seedlink_samples_streamer thread polls for new
        samples instead of being event-driven.  This
        software pattern
        is suboptimal, especially with regards to latency, but it was much quicker
        to implement as an initial version.
       | 
    
  
Change log
  
      - 2023-06-19 : release 2.1-9800
 
          - This release contains the following fixes:
            
              - Fixed incorrect filter coefficients in dataless seed files
 
              - General performance and stability improvements
 
            
           
    - Release 2.1-9734
 
        - This release contains the following fixes:
          
            - Fixed issue with Calibration Signal Generator
 
            - IP Address will now correctly show as DHCP instead of Static
 
          
         
    - Release 2.1-9653
 
        - This release contains the following fixes:
          
            - Fixed incorrect values on power channel
 
            - Corrected ≈1 ms timing offset
 
            - Fixed issue with units of "g" not showing up in Discovery when loading from a dataless file
 
            - Fixed custom units section in poles and zeros section of Discovery
 
            - Fixed incorrect filter coefficients in dataless seed files
 
            - General performance and stability improvements
 
          
         
    - Release 2.1-9039
 
        - This release contains the following fixes:
          
            - Added StationXML files to storage tab under Auxiliary files
 
            - Fixed errors with Triggering
 
            - Fixed errors when attempting to download by time
 
            - Calibration values from Certis will now be viewable in the calibration editor on newer versions of Discovery.
 
            - LED will now flash blue for five cycles upon a trigger.
 
            - event_table.txt now shows <1 second events as "<1" instead of 0 seconds.
 
            - Threshold triggers now identified correctly in event_table.txt.
 
            - Fixed date not showing correctly on system.log.
 
          
         
    - Release 2.1-8647
 
        - This release contains the following fixes:
          
            - Fixed custom channel units reseting on reboot.
 
            - Fixed issues with the threshold trigger on seismic channels.
 
            - Event Table text file (event_table.txt)
                download can now be found the storage tab of the web page.
 
            - Added timestamps to system.log and fixed errors on some text editors.
 
            - Improvements to STA/LTA trigger performance.
 
          
         
    - 2023-03-20 : release V2.1-7389
 
        - This release contains the following fixes:
          
            - SEED names are now delimited with periods; GCF stream names
              remain hyphen-delimited.
 
            - Added more Platinum-compatible GDI metadata.
 
          
         
    - Release 2.1-6731
 
        - This release contains the following fix:
          
            - Added more Platinum-compatible GDI metadata.
 
          
         
    - Release 2.1-6633
 
        - This release contains the following fixes:
          
            - Removed extra sensors listed underneath Sensor Installation Parameters
 
            - Improved accuracy of Start data timestamp and Last data timestamp
 
            - Certis streams added to download by time dropdown
 
            - Duplicate seed names are now flagged correctly
 
            - Removed duplicate seed names from the default channels
 
            - Backfill now works across multiple files
 
            - Bluetooth reloading of firmware on boot fixed.
 
            - Extra DHCP request after failure on boot.
 
            - General bug fixes and improvements.
 
          
         
    - Release 2.1-6314
        
 - This release contains the following fixes:
          
            - Enabled Auto Reboot
 
            - Removed sensors status from the Status tab on the web page
 
          
         
    - Release 2.1-6309
        
 - This release contains the following fixes:
          
            - Improvements and fixes to timing accuracy
 
            - Added login support
 
            - System.log file is now available under Auxiliary files
 
            - Added some default calibration values
 
            - Added Channel data download by time selection
 
            - Added Download selected files
 
            - Fixed crash on password change
 
            - Fixed corruption of miniseed files
 
          
         
    - Release 2.1-5790
        
 - This release contains the following fixes:
          
        
 
    - Release 2.1-5644
        
 - This release contains the following fixes:
          
            - Bluetooth now fully functional. This includes power-saving switches to allow LAN to be re-enabled 
 
            - Start- and end-times of SD files now displayed on web page 
 
            - Temperature and Humidity now shown of web page. GPS locking bug fixed 
 
            - Data-download from web page supported. Dataless SEED generation added 
 
            - Calpage editor in Discovery supported
 
            - Lithium battery box support added 
 
            - Low-power "LAN off" feature added 
 
            - Web page going quiet bug now fixed 
 
            - Remote reboot function from Discovery added 
 
            - Input voltage and PoE now shown on WEB page
 
          
         
For more information, please email .