Table of Contents
Advertisement
20.1 GPS (Global Positioning System)
20.1.1 Serial interface characterization
20.2 Protocol
Bosch Motorsport
20 GPS Sensor
Space-based global navigation satellite system.
GPS provides positioning, navigation, and timing services to worldwide users.
GPS receiver (sensor) gives digital information about position (longitude, latitude, height),
ground speed, course, and status.
Two types of GPS receivers:
CAN output -> Read in messages via CAN Input of C 80 (not covered here)
Serial output -> Read in messages via RS232 Interface of C 80
Serial Interface is characterized by:
Voltage levels: RS232 is standard (+/-12 V), UART (0 V/ 5 V) needs level shifter
Baud rate: 9,600 is standard for GPS, C 80 supports 1,200 to 115,200 baud. GPS Rx inter-
face baud rate must match C 80 interface baud rate. C 80 Baud rate can be set with the
'GPS_BAUDRATE' characteristic Data format: C 80 expects 8 data bits, no parity bit, 1 stop
bit (8N1)
Serial Interface is characterized by:
Voltage levels: RS232 is standard (+/-12 V), UART (0 V/ 5 V) needs level shifter
Baud rate: 9,600 is standard for GPS, C 80 supports 1,200 to 115,200 baud. GPS Rx inter-
face baud rate must match C 80 interface baud rate. C 80 Baud rate can be set with the
'GPS_BAUDRATE' characteristic Data format: C 80 expects 8 data bits, no parity bit, 1 stop
bit (8N1)
C 80 expects NMEA Protocol (ASCII).
The following messages are decoded:
Message
GGA
GSA
GSV
RMC
VTG
On most GPS sensors, these messages are activated in the default configuration.
Function
GPS fix information
Overall satellite data
Detailed satellite data
Recommended minimum data for GPS
Vector track and speed over the ground
Manual_C_80
GPS Sensor | 20
129 / 144
Advertisement
Table of Contents
