Nmea Input - Advanced Navigation Certus OEM Reference Manual

Certus Reference Manual • Interfacing
GPIO Port
:
Auxiliary
:
Description
:
9.6.1.26 Wheel Encoder Phase B
Type
:
GPIO Port
:
Auxiliary
:
:
Description
9.6.1.27 Gimbal Encoder Phase A
Type
:
GPIO Port
:
Auxiliary
:
Description :
9.6.1.28 Gimbal Encoder Phase B
Type
:
GPIO Port
:
Auxiliary
:
Description :

9.6.1.29 NMEA Input

Type
:
GPIO Port
:
Auxiliary
:
Description :
v2.4
1, 2
N/A
This function is designed for rotary incremental quadrature encoders. It should be used in
combination with Wheel Encoder Phase B.
Frequency Input
1, 2
N/A
This function is designed for rotary incremental quadrature encoders. It should be used in
combination with Wheel Encoder Phase A.
Frequency Input
1, 2
N/A
This function is designed for interfacing with a rotary incremental quadrature encoder to
measure the azimuth angle of a gimbal in which Certus is installed. It should be used in
combination with Gimbal Encoder Phase B.
Frequency Input
1, 2
N/A
This function is designed for interfacing with a rotary incremental quadrature encoder to
measure the azimuth angle of a gimbal in which Certus is installed. It should be used in
combination with Gimbal Encoder Phase
Serial Receive
2
Receive
This function accepts external data in the NMEA 0183 format. Advanced Navigation
recommends against using NMEA 0183 input wherever possible due to the inefficiency,
low accuracy and precision and weak error checking of the format. All NMEA messages
received must have a valid checksum. Supported messages are listed below. The
recommended combination of messages are RMC with optional messages GPGSV and
GPGSA. If RMC is not available, GGA and VTG can be used.
A.
Page 133 2024-12-17