Orion NMEA User Manual
GPS Receiver Module
Micro Modular Technologies Pte. Ltd.
Page 13 of 25
No. 3, Ubi Avenue 3, #03-02 Crocodile House 408857 Singapore
Tel: 65-6745-8832 Fax: 65-6293-0661 Email: sales@micro-modular.com
www.micro-modular.com
4.2
CONFIG Command
The CONFIG command allows the user to change the configuration of the system. This configuration
takes effect immediately. It is also stored in non-volatile media and will therefore persist across
power cycles.
The format of the CONFIG command is:
$PUNV,CONFIG,<section id>,<variable number of comma separated fields>*cc
4.2.1
Section 00 - Output Configuration
Set the output configuration:
$PUNV,CONFIG,00,00,0,1000,UART,MASK*cc
Table 11 – Output Configuration Parameters
UART is the UART communication speed in bits per second. All communications use 8 data
bits, no parity, and one stop bit.
MASK is a two-digit hexadecimal number which enables selected output NMEA sentences.
Each NMEA output sentence is assigned a bit in the mask.
Examples:
Only transmit the GSA, GSV, VTG, ZDA, and DTM sentences:
$EC = GSA ($4) + GSV ($8) + VTG ($20) + ZDA ( $40) + DTM(80)
Transmit the default sentences:
$1D = GGA ($1) + GSA ($4) + GSV ($8) + RMC ($10)
•
Orion will check the maximum length of NMEA sentences when changing the output
configuration. If the speed is set to 4800 bps and the selected sentences total more than 450
characters, the command will be rejected and an error message issued. If all the specified
sentences are desired, a speed greater than 4800 bps must be selected.
UART communication speed
NMEA mask
(UART)
(MASK)
4800 = 4800 bps
01 = GGA
9600 = 9600 bps
02 = GLL
14400 = 14400 bps
04 = GSA
19200 = 19200 bps
08 = GSV
38400 = 38400 bps
57600 = 57600 bps
10 = RMC
115200 = 115200 bps
20 = VTG
40 = ZDA
80 = DTM
Default : 4800
Default : 1D
