GPS Overview
- Updated2025-07-18
- 1 minute(s) read
Use this instrument design library to control and configure the onboard GPSDO module of your device.
GPS Registers Subsystem
The GPS Registers subsystem contains memory elements that store GPS NMEA data made available by the onboard GPSDO module. This instrument design library subsystem includes FPGA VIs which facilitate the storage of fresh GPS NMEA data in memory. The host VIs in this library help fetch this data from the FPGA over the register bus, parse the data, and check the data to deliver the NMEA strings GPRMC and GPGGA. You must have a device with an onboard GPS to use this subsystem. These NMEA strings contain valid location, time, and other information only when you make a GPS signal available to the device using the GPS ANT terminal and the device achieves a GPS lock.
Programming
You only need to use Get GPS Nmea Strings.vi at the host level to get NMEA strings.