CSI Wireless Seres, Reference Manual

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Seres Reference Manual
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Note - If you require different data types to be output from the
Seres simultaneously (such as NMEA and binary or NMEA and
RTCM, ensure that the software used for logging and processing
of the data has been designed to correctly parse the different
data types from the single stream of data. Alternatively, you may
also use the two serial ports separate the different data types.
4.2.1 NMEA 0183 Interface
NMEA 0183 is a communications standard established by the National
Marine Electronics Association (NMEA) and provides data definitions for a
variety of navigation and related equipment. Such instruments supported
include gyrocompasses, Loran receivers, echo sounders, GPS receivers,
and more. NMEA functionality is virtually standard on all GPS equipment
available. NMEA has an ASCII character format that allows you to read the
data via terminal software on the receiving device (if possible). One second
of NMEA data from the Seres follows:
$GPGGA,144049.0,5100.1325,N,11402.2729,W,1,07,1.0,1027.4,M,0,M,,0100*61
$GPVTG,308.88,T,308.88,M,0.04,N,0.08,K*42
$GPGSV,3,1,10,02,73,087,54,04,00,172,39,07,66,202,54,08,23,147,48*79
$GPGSV,3,2,10,09,23,308,54,11,26,055,54,15,00,017,45,21,02,353,45*78
$GPGSV,3,3,10,26,29,257,51,27,10,147,45,,,,,,,,*74
Depending on each manufacturer’s goals for a product, they may have the
need to combine data into custom messages, which allows them to
improve communication and programming efficiency. The standard NMEA
standard provides for manufacturers to define their own custom,
proprietary messages as required. Proprietary NMEA messages are likely
to be supported only by the specific manufacturer.
The Seres supports a variety standard and proprietary NMEA messages.
These messages are used to configure the Seres and also contain the
required information from the Seres. You may configure a selection of
NMEA 0183 data messages on one port at various update rates (each
message has a maximum update rate) and a different selection of NMEA
0183 messages with different rates on the other port.