ZED-F9K - Integration manual
For more information about the default configuration, see the ZED-F9K Interface description [
3.1.3 Default interface settings
Interface
Settings
UART1 output
38400 baud, 8 bits, no parity bit, 1 stop bit.
NMEA protocol is enabled by default and
GGA, GLL, GSA, GSV, RMC, VTG, TXT
messages are
output by default.
UBX protocol is enabled by default but no output messages are enabled by default.
RTCM 3.3 protocol output is not supported.
UART1 input
38400 baud, 8 bits, no parity bit, 1 stop bit.
UBX, NMEA and RTCM 3.3 input protocols are enabled by default.
UART2 output
38400 baud, 8 bits, no parity bit, 1 stop bit.
UBX protocol cannot be enabled.
RTCM 3.3 protocol output is not supported.
NMEA protocol is disabled by default.
UART2 input
38400 baud, 8 bits, no parity bit, 1 stop bit.
UBX protocol cannot be enabled and will not receive UBX input messages.
RTCM 3.3 protocol is enabled by default.
NMEA protocol is disabled by default.
USB
Default messages activated as in UART1. Input/output protocols available as in UART1.
I2C
Fully compatible with the I2C
industry standard, available for communication with an external
host CPU or u-blox cellular modules, operated in slave mode only. Default messages activated as
in UART1. Input/output protocols available as in UART1. Maximum bit rate 400 kb/s.
SPI
Allow communication to a host CPU, operated in slave mode only. Default messages activated as
in UART1. Input/output protocols available as in UART1. SPI is not available unless D_SEL pin is
set to low (see the
Table 1: Default interface settings
UART2 can be configured as an RTCM interface. RTCM 3.3 is the default input protocol. UART2
may also be configured for NMEA output. NMEA GGA output is typically used with virtual reference
service correction services.
By default the ZED-F9K outputs NMEA messages that include satellite data for all GNSS
bands being received. This results in a high NMEA load output for each navigation period.
Make sure the UART baud rate used is sufficient for the selected navigation rate and the
number of GNSS signals being received.
3.1.4 Basic receiver configuration
This section summarizes the basic receiver configuration most commonly used.
3.1.4.1 Communication interface configuration
Several configuration groups allow operation mode configuration of the various communication
interfaces. These include parameters for the data framing, transfer rate and enabled input/output
protocols. See
section for details. The configuration groups available for
each interface are:
Interface
Configuration groups
UART1
CFG-UART1-*, CFG-UART1INPROT-*, CFG-UART1OUTPROT-*
UART2
CFG-UART2-*, CFG-UART2INPROT-*, CFG-UART2OUTPROT-*
1
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UBX-20046189 - R01
3 Receiver functionality
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C1-Public
Early production information