User guide release date: February 09, 2024
u-center 2 version: v24.01.89221
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u-center 2 is u-blox's powerful tool for configuration, evaluation, and debugging of u-blox GNSS receivers and services.
It allows the end users to assess and test u-blox positioning chips, modules, evaluation kits, application boards and similar devices for navigation and positioning performance.
This document provides a guide for starting to use the features of this software and explains how to resolve common use cases.
u-center 2 has been tested on Windows 10 (64 bit) platform and runs on Windows 11 as is. It currently supports u-blox gen 10 GNSS devices.
u-center 2 can be downloaded from u-center website. The u-center 2 package comes with a setup file. Click the file and follow the steps to install the application (administration rights might be needed). Once the installation has completed successfully, you need to enter your u-blox support portal account credentials and log in with a browser. FireFox is the recommended browser for u-center 2.
After login, having internet connectivity, u-center 2 will start and can also be used offline.
After each start - or for continuously running software every 24 hours - the application will check for possible updates. If an update is available, then the application will download it in the background and will inform the user by a notification. User settings and login credentials are not affected or changed.
If the user dismisses the update it will still be available from the "Help" menu in case the user intends to perform it later on.
When the user starts the update process, the installer starts and asks the user to close the running application. After finishing the installation the software will be restarted.
If you want to share your feedback to improve u-center 2 further, select User feedback option in help menu.
To evaluate u-blox devices, make sure you have the appropriate USB driver installed in your system. To connect a device to the u-center 2:
The connection switch turns green as a signal of a valid communication and an indicator will show if u-center 2 is receiving messages.
Once you have connected the device, you can view the device information by selecting the arrow pointing to the right in the device menu.
The device information shows the hardware and firmware versions as well as a drop-down menu to change the baud rate from a list of predefined baud rates.
To save, load and revert to default configuration, use the Save, Load and Revert buttons in Device info > Configuration actions.
Save: Saves the current receiver configuration to battery backed RAM (BBR) and flash from read access memory (RAM) of the receiver
Load: Loads the last configuration that was saved to BBR and flash, ignoring what is configured in the RAM layer.
Revert: Reverts to the default firmware configuration and clears all the configurations done in BBR, flash or the RAM layer of the receiver
When a device is connected and u-center 2 is receiving data, the Restart section gives the option to perform a Cold start or Hot start.
Selecting Debug will enable a range of messages best suited for debugging the device configuration.
Sometimes receiver need to be in safeboot mode to be able to configure some specific configuration. To add a u-blox device that is in safeboot mode to u-center 2:
Ensure that your device is in safeboot mode. For details check the device integration manual, which you can be found on u-blox.com.
Click the Devices icon on the left menu bar.
Click Add device.
Select the COM port of the device.
Select the safeboot option for connecting to the device in safeboot mode. This will also send the training sequence in the background to be able to synchronize with the external clock.
To access the device configuration menu:
Open the Devices menu by selecting the Devices icon on the left menu bar.
Select the Device configuration button.
This will display the Device configuration window.
Note that you can pop out the Device configuration window and move it outside the u-center 2 application. It can remain open while you are working with the other windows in the u-center 2 application.
Select Quick configuration for user-friendly configurations, or
Select Advanced configuration for expert configuration options.
Select one of the Saved configurations to apply a previously saved set of advanced configuration items.
Note that the configuration menu is also available even without connecting devices.
Quick configurations are an easy way to configure the device.
To enable or disable satellite constellations including signals, select the Constellation configuration item.
This section allows the simple configuration of time mode compatible devices which support CFG-TMODE-* configuration items. Your selections will be used to construct a set of CFG-TMODE-* configuration items grouped in a single UBX-CFG-VALSET message that can be configured in three different layers of the connected device.
If no device is connected, it is still possible to copy the generated string and share it.
To set the timing device into base mode, enable the survey-in procedure or specify fixed coordinates. To find the appropriate values to configure in different modes, check the product Integration manual. The following configuration options are available:
This section allows the simple configuration of time pulse mode compatible devices which supports CFG-TMODE-* configuration items. Your selections will be used to construct a set of CFG-TMODE-* configuration items grouped in a single UBX-CFG-VALSET message that can be configured in three different layers of the connected device. If no device is connected, it is possible to copy and share the generated string in need.
Check the device integration manual for the parameters to choose for device global settings and Time pulse settings.
The Advanced configuration panel allows a device to be configured by sending individual configuration item key ID and value pairs to the device's random access memory (RAM), battery backed RAM (BBR) and flash configuration layers. In addition, the current configuration of the device can also be viewed by retrieving configuration items from the device's configuration layers.
To read configuration items of the connected device, select the configuration item of interest from the Items panel. This sends a poll request to the device. If the device supports the selected configuration item, it will send back the corresponding value for each configuration layer, which will then be displayed.
To be able to poll all the supported configuration item values from all configuration layers, click on the three dot burger menu and select Capture all configuration layer values. This will poll all the values from all possible layers for the configuration items that are supported by the FW version of the connected device. You will get a configuration items column only with supported items.
To create a configuration list from these items, select Create configuraiton list option from three dot burger menu. This will transfer all the configuration items to right hand side configuration changes list. The list can be then saved as a file in Saved configurations section to export or share. This file can be imported later to apply to any relevant receiver for debug purposes.
Use the preset filters added in the filter field of the middle configuration items column.
Click the drop down menu to get the preset filter options:
A device is configured by sending individual configuration item key ID and value pairs to the device's RAM, BBR and flash configuration layers.
To do this:
In the Items panel, select the configuration group to expand the item tree.
Within this group, select the configuration item to show its current configuration on all layers, and its details in the right hand panel.
Select the layer to write
Enter/select an appropriate value.
Select the Set button. This will add the item, its value and the layer to the Configuration changes list.
Repeat steps 1 to 5 to build up your list of configuration item changes
Review the list configuration item changes to send to the device. The order each configuration item is sent to the device is top down. To change the order, drag an item in the Configuration changes list to the new position. To remove an item select Clear.
Each configuration property in the list will be sent as an individual UBX-CFG-VALSET message. By selecting Send configuration in batch mode these properties will be grouped together into one UBX-CFG-VALSET message per layer. This will result in fewer messages which can be send to the connected device faster.
To change the value of an item or its layer, select Edit or double click on the item. In the top panel the item will appear allowing its value and/or layer to be changed. Select Update to add any changes to the item back to the Configuration changes list, or Cancel if any changes are not wanted.
To review the configuration items as hex codes, select the Message hex codes tab. This shows the hex representation of UBX-CFG-VALSET or UBX-CFG-VALDEL, and UBX-CFG-VALSET messages for each configuration item if applicable. Select Send configurations in batch mode to view the the hex code of the configuration items grouped together for each layer.
Click Send to send the changes to the device. The configuration items successfully accepted by the device are indicated with a green check mark . A red alert triangle indicates the key is unknown to the device firmware or the configuration is not valid (the validity of a configuration is checked only if the message applies to the RAM configuration layer).
To save the Configuration changes list and add it to the list of Saved configurations, click Save as....
A list of use case-based, quick preset examples are available in the Advanced configuration category in the configuration window.
By selecting one of the preset examples, the configuration is loaded into the configuration changes list shown on the right panel. For the preset examples, a short description is shown on the right panel explaining the typical use case in which this set of configurations is applicable in.