LISA-C2 series and FW75-C200 - System Integration Manual
UBX-13000620 - R21
Early Production Information
Features description
Page 82 of 103
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Send the AT+UFWUPD=3 command through the UART or over the USB interface
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A command will respond with a prompt (special character), indicating it is ready for the file transfer
•
Select the target FW package to upgrade to
•
Send the new FW image via Xmodem (see Figure 43 for details)
Figure 43: FOAT Update via Xmodule protocol
3.6
AssistNow clients and GNSS Integration
This feature is supported only by LISA-C200 from version 03S / 23S onwards.
For customers using u-blox GNSS receivers, LISA-C cellular modules feature embedded AssistNow clients.
AssistNow A-GNSS improves GNSS performance and Time-To-First-Fix. The clients can be enabled and disabled
with an AT command (see the
u-blox C2 series AT Commands Manual
LISA-C modules act as a stand-alone AssistNow client, making AssistNow available with no additional
requirements for resources or software integration on an external host micro controller. Full access to u-blox
GNSS receivers is available via the LISA-C200, through a dedicated DDC (I
2
C) interface, while the available GPIOs
can handle the positioning unit power-on/off. This means that CDMA and GNSS can be controlled through a
single serial port from any host processor.
3.7
Hybrid positioning and CellLocate
TM
These features are supported only by LISA-C200 from version 04S / 24S onwards.
Although GNSS is a widespread technology, its reliance on the visibility of extremely weak GNSS satellite signals
means that positioning is not always possible. Especially difficult environments for GNSS are indoors, in enclosed
or underground parking garages, as well as in urban canyons where GNSS signals are blocked or jammed by
multipath interference. The situation can be improved by augmenting GNSS receiver data with cellular network
