User Guide

u-center-User Guide
UBX-13005250 - R18

Production Information 8 Tools
Page 56 of 67
3. Select the flash information structure file (only needed after and including u-blox receiver generation 7), or
the flash definition file (only needed before u-blox receiver generation 7). These files should be bundled with
u-center. See position b on Figure 51.
4. Select the options for your receiver. See position c on Figure 51.
Option Description Recommended
Use this Baud rate for update Selects the speed of the communication for updating the firmware on the
receiver. Only has an effect when the receiver is connected over a serial
port.
115200
Program FIS only Writes only the flash information structure (FIS) into the external memory
and does not update the firmware. This option is used for receivers running
from ROM but with an attached SQI memory (for example for logging).
Only supported after and including u-blox receiver generation 7.
disabled
Enter Safeboot before update Sends the command to enter safeboot. In this state, the receiver boots
from the internal ring oscillator and does not rely on any external
components. GNSS functionality is not started and the receiver does
not output any data. Don't use this method when having the receiver
connected over USB.
enabled
Send Training sequence Sends the training sequence after safeboot was entered. This synchronizes
the internal ring oscillator so that a communication can be established.
enabled
Use chip erase Erases the flash using an single command instead of individual sector
erases.
check support
Transfer image to RAM Transfers the firmware image directly to the receiver's RAM. Not stored to
flash.
disabled
5. The additional options field allows more command options to be specified than are presented in the UI. This
feature should only be needed if the firmware update utility launched by u-center has additional features
which the development of th UI has not caught up with yet. See position d on Figure 51.
6. The command line field displays the actual command line and parameters used to launch the firmware update
utility from u-center. This can be used to help diagnose any issues that may occur when performing a firmware
update. See position e on Figure 51.
7. The status fields display information about the connected receiver, the presence of the firmware and FIS files,
and if the firmware update utility can be found. See position f on Figure 51. If there is a problem with any of
these items, the 'Go' button, which starts the update process, will be greyed out.
8. Press the 'Go' button to start the firmware update progess. This button will only be enabled if if u-center can
see the receiver and can find the specified files. If this button is greyed out, check the status dispay to see
what is wrong. See position g on Figure 51.
9. Press the 'Stop' button to terminate the firmware update process. This will only be enabled when the update
process is running. See position h on Figure 51.
10.During firmware update, a progress bar is displayed. See position i on Figure 51.
11.A log is also displayed during the update process. See position j on Figure 51.
12.A detailed image of the flash erase and writing progress will also be shown. See position k on Figure 51.
8.2 Legacy Firmware update u-blox 5 - 8
This is the legacy receiver firmware update tool, which is built into the u-center binary. It can be used to program
u-blox 5 to u-blox 8 receivers. However futher feature development has been stopped and u-center now uses the
stand alone command line firmware update utility as the primary firmware update mechanism. This is documented
in the previous section. In the future, this legacy firmware update tool will be removed permanently from u-center.
As with the primary firmware update tool, the receiver has to have a flash memory attached as the firmware
has to be stored in this location.
Perform the following steps to update the firmware:
1. Establish the communication between u-center and the device (see also Connect to the receiver).
2. Open firmware update tool by clicking on Tools -> Legacy Firmware Update...