LISA-C2 series and FW75-C200 - System Integration Manual
UBX-13000620 - R21
Early Production Information
Features description
Page 68 of 103
3
Features description
3.1
TCP/IP and UDP/IP
Via the AT commands it’s possible to access the TCP/IP and UDP/IP functionalities over the Packet Switched data
connection. For more details about AT commands see the
u-blox C2 series AT Commands Manual
LISA-C200 modules support the Direct Link mode for TCP and UDP sockets. Sockets can be set in Direct Link
mode to establish a transparent end-to-end communication with an already connected TCP or UDP socket via
serial interface. In Direct Link mode, data sent to the serial interface from an external application processor is
forwarded to the network and vice-versa.
To avoid data loss while using Direct Link, enable HW flow control on the serial interface.
3.2
HTTP
HTTP client is implemented in LISA-C200 modules. HEAD, GET, POST, DELETE and PUT operations are available.
The file size to be uploaded / downloaded depends on the free space available in the local file system (FFS) at the
moment of the operation.
For more details about AT commands see the
u-blox C2 series AT Commands Manual
3.3
FTP
FTP direct link feature is supported only by LISA-C200 from version 04S / 24S onwards.
LISA-C200 modules support File Transfer Protocol functionalities via AT commands. Files are read and stored in
the local file system of the module. Alternatively, FTP Direct Link option can be used, which does not require files
to be read and stored in the local file system of the module; data sent to the serial interface from an external
application processor is forwarded to the network and vice-versa.
For more AT commands details, see
u-blox C2 series AT Commands Manual
3.4
UTEST
3.4.1
Description
LISA-C200 modules sUTEST via AT command. This command enables the module to enter a non-
signaling mode. In this mode, within the support 800 / 1900 MHz bands, the module can be set to transmit a
defined output RF signal or measure a receive RF signal in a specified channel.
There are various test applications that +UTEST can help facilitate with. This includes, but not limited to:
•
Check application board RF TX / RX path connection for integrity, which can potentially detect:
o
If antenna is installed properly or not
o
Unintended short or open circuits in the RF path
In addition to +UTEST, the module offers an antenna detection function, which is described in section
2.4.3.
•
Investigation of the power supply performance on a host application board
•
Checking current consumption for a given output TX output power level
•
Evaluate thermal dissipation for a given TX output power level