RGPSD012 Semtech, RGPSD012 Datasheet - Page 15

• Manufacturer Part Number: RGPSD012
• Description: KIT EVAL FOR RGPSM002
• Manufacturer: Semtech
• Type: GPSr

Specifications of RGPSD012

• For Use With/related Products: RGPSM002
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Example:
$PXEMQTF*6E
$PXEMRTF,A,A,112345,05,2,45.45677,N,6.26789,E,387*6E
NM – Sentence Mask and Automatic Output Rate
This sentence configures the application to automatically output standard NMEA sentences at a specified time
interval.
$PXEMaNM,xxxx,xx*hh
Notes: xxxx is a hexadecimal value representing a 2-byte bit-mask where a specific bit sets or clears automatic output
of a particular NMEA sentence according to the table below. The mask is derived by combining all bits which
represent the NMEA sentences which will be automatically output. For example, to automatically output GGA, GSA,
ZDA, and RMC, the bits 0, 4, 5, and 8 are set to 1 in a 2-byte mask, resulting in a hex value 0x131
(0x1+0x10+0x20+0x100). This value is sent as an ASCII string ‘0131’ in the xxxx field of the NM sentence.
Example: $PXEMSNM,0008,01*6E
$PXEMRNM,a*6E
Example: $PXEMQNM*6E
$PXEMRNM,0119,01*6E
© Semtech 2005
Name
Message ID
BBFStatus
AlmStatus
GPSTime
SatInView
FixSource
Lat
N/S
Lon
E/W
Alt
<CR><LF>
Name
Message ID
Mask
Rate
<CR><LF>
(response to set: a – action status: A = success; V = failure)
(query)
(response to query)
Table 20 Possible MASK field values for the NM command
(set)
Example
$PXEMaTF
A
A
12367
06
3
34.1453
N
E
283
Example
$PXEMaNM
0008
01
Sentence
GGA
GLL
VTG
GSV
GSA
ZDA
RMC
TF
Table 19 NM Data Format
Table 18 TF Data Format
NMEA
Units
seconds
deg
deg
meter
Units
sec
Bit#
0
1
2
5
8
9
3
4
15
xxxx
xxxxxx: GPS time of week
llll.lllll: Latitude of the current position fix
yyyyy.yyyyy: Longitude of the current position fix
End of message termination
xx Automatic output sentence rate (00 to 99)
End of message termination
Description
TF protocol header, (a: Q = query; R = response)
a: BBFlash status on startup (A = valid; V =
invalid)
a: Almanac completion status (A = complete; V =
incomplete)
xx: Number of satellites in use
x: Position fix source (0=no fix; 2=2D fix; 3=3D
fix)
a: N (North), S (South)
a: E (East), W (West)
xxxxx: Antenna altitude ref mean-sea-level (MSL
geoid)
Description
Proprietary NM protocol header, a-mode (Q =
query; S = set; R = response)
xxxx Output sentence mask, hex value (see
Notes below)
Field value
0001
0002
0004
0008
0010
0020
0100
0200
RGPSM002
GPS Receiver
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