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:

Firmware version as shown on Discovery main screen

If the firmware version is not displayed, select Firmware Ver from the Show sub-menu of the Window menu:

Enable firmware version display

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 Firmware Update system. Firmware updates are currently only possible using the File Exchange facility. To perform the upgrade, follow the instructions below.

The Procedure

  1. Download the latest firmware build from here and save the file.

  2. Open the Discovery software and locate the digitiser to be upgraded.

  3. Right-click on the digitiser to upgraded:

  4. Select File Exchange from the context menu:

    Selecting 'File Exchange' from the context menu
  5. The File Exchange dialog opens. Either:

  6. Type /ram/minimus2_project.bin into the Upload as: box.

    Double-check your typing. This must be exactly as shown or you risk damage to your digitiser.
    the 'File Exchange' dialog, populated appropriately
  7. Click the 'Upload' button to begin the firmware upload.

    Do not click the 'OK' button at this stage.
  8. The File Exchange dialog will be greyed out and the following notice will appear:

    the 'File Exchange in progress' window
    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.

  9. 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 the 'OK' button.

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:
Release 2.1-9734
This release contains the following fixes:
Release 2.1-9653
This release contains the following fixes:
Release 2.1-9039
This release contains the following fixes:
Release 2.1-8647
This release contains the following fixes:
2023-03-20 : release V2.1-7389
This release contains the following fixes:
Release 2.1-6731
This release contains the following fix:
Release 2.1-6633
This release contains the following fixes:
Release 2.1-6314
This release contains the following fixes:
Release 2.1-6309
This release contains the following fixes:
Release 2.1-5790
This release contains the following fixes:
Release 2.1-5644
This release contains the following fixes:

For more information, please email .