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i

Wave GPS Module User Manual

REL1.9

iWave Systems Technologies Pvt. Ltd.

Page 27 of 29

(Confidential)

103—Query/Rate Control:

This command is used to control the output of standard NMEA messages GGA, GLL, GSA,
GSV, RMC, and VTG. Using this command message, standard NMEA messages may be polled
once, or setup for periodic output. Checksums may also be enabled or disabled depending on the
needs of the receiving program. NMEA message settings are saved in battery-backed memory
for each entry when the message is accepted.

Table 16 contains the input values for the following examples:

1. Query the GGA message with checksum enabled

$PSRF103,00,01,00,01*25

2. Enable VTG message for a 1 Hz constant output with checksum enabled

$PSRF103,05,00,01,01*20

3. Disable VTG message

$PSRF103,05,00,00,01*21

Table 16: Query/Rate Control Data Format

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Содержание iW-PRDLT-AP-01-R2.0-51

Страница 1: ... DETAILS TO IWAVE GPS MODULE 10 4 APPLICATION CIRCUIT 11 5 MECHANICAL DIMENSION 12 6 NMEA PROTOCOL 14 6 1 GENERAL FORMAT 14 6 2 GGA GLOBAL POSITIONING SYSTEM FIXED DATA 15 6 3 GLL GEOGRAPHIC POSITION LATITUDE LONGITUDE 16 6 4 GSA GNSS DOP AND ACTIVE SATELLITES 17 6 5 GSV GNSS SATELLITES IN VIEW 18 6 6 RMC RECOMMENDED MINIMUM SPECIFIC GNSS DATA 19 6 7 VTG COURSE OVER GROUND AND GROUND SPEED 20 6 8 ...

Страница 2: ...ve Systems Technologies Pvt Ltd Page 5 of 29 Confidential List of Figures FIGURE 1 IWAVE GPS MODULE R2 0 9 FIGURE 2 APPLICATION CIRCUIT 11 FIGURE 3 GPS MODULE PCB DIMENSION TOP VIEW 12 FIGURE 4 GPS MODULE PCB DIMENSION WITH SHIELDING SLOT 13 ...

Страница 3: ...6 GSA DATA FORMAT 17 TABLE 7 GSV DATA FORMAT 18 TABLE 8 RMC DATA FORMAT 19 TABLE 9 VTG DATA FORMAT 20 TABLE 10 ZDA DATA FORMAT 21 TABLE 11 NMEA INPUT MESSAGES 23 TABLE 12 TRANSPORT MESSAGE PARAMETERS 23 TABLE 13 SET SERIAL PORT DATA FORMAT 25 TABLE 14 NAVIGATION INITIALIZATION DATA FORMAT 26 TABLE 15 RESET CONFIGURATION NON SIRFLOC PLATFORMS 26 TABLE 16 QUERY RATE CONTROL DATA FORMAT 27 TABLE 17 L...

Страница 4: ...h 4Mb Internal RAM 1Mb General Frequency L1 Frequency 1575 42MHz Channels 20 Max GPS receiver function Position Autonomous 10 meter Open Sky Time 1 microsecond synchronized to GPS time Maximum Altitude 18000 meter Maximum Speed 514 meter second maximum Software GPS Datum GPS coordinate systems WGS 84 Protocol NMEA Output Protocol message GGA GSA GSV RMC VTG Baud Rate 9600 Max Update Rate 1Hz Time ...

Страница 5: ...tenna supported SMA connector provided for Antenna interface Environmental Characteristics Operating Temperature 25 deg C to 80 deg C Storage Temperature 25 deg C to 85 deg C Physical Characteristics Length 27mm Width 25mm Height 11 67mm Including SMA Connector Weight 25 grams IO connector 6 Pin Battery backup 3V 3 3V Main Power Input Ground DC ve UARTA TX Output from Module 2 85V Output 3 3V tole...

Страница 6: ...e GPS Module iWave GPS Module top view Figure 1 iWave GPS Module R2 0 IWave GPS module bare PCB size is 23mmX 27mm after assembling components the size is 25mm X 27mm because of IO connector IWave GPS module can be directly connected to external Active GPS antenna using SMA connector as shown in Figure 1 ...

Страница 7: ... 2 5V to 3 6V Max 2 3 3V Main Main power supply for the module Input Nominal DC 3 3V Range DC 3 1V to 3 6V Max 3 Ground Ground Reference Ground DC ve 4 TXA Transmit pin of the module Output 2 85V Interface VOH 2 65V min VOL 0 2V max 5 RXA Receive pin of the module Input 2 85V Interface 3 3V Tolerant VIH 2V min to 3 15V max VIL 0 3V min to 0 8V max 6 GPIO GPIO Line No Connection Table 2 IO Connecto...

Страница 8: ...iWave GPS Module User Manual REL1 9 iWave Systems Technologies Pvt Ltd Page 11 of 29 Confidential 4 Application Circuit Figure 2 Application circuit ...

Страница 9: ...iWave GPS Module User Manual REL1 9 iWave Systems Technologies Pvt Ltd Page 12 of 29 Confidential 5 Mechanical dimension iWave GPS module PCB dimension Figure 3 GPS module PCB dimension Top View ...

Страница 10: ...iWave GPS Module User Manual REL1 9 iWave Systems Technologies Pvt Ltd Page 13 of 29 Confidential iWave GPS module PCB dimension Figure 4 GPS module PCB dimension with shielding slot ...

Страница 11: ...e the CR LF can be an optional checksum consisting of an asterisk hex 0x2A followed by two ASCII characters representing the hexadecimal value of the checksum The checksum is computed as the exclusive OR of all characters between the and characters Message Description GGA Time position and fix type data GLL Latitude longitude UTC time of position fix and status GSA GPS receiver operating mode sate...

Страница 12: ...oning System Fixed Data Note Fields marked in italic red apply only to NMEA version 2 3 and later in this NMEA message description Table 4 contains the values for the following example GPGGA 002153 000 3342 6618 N 11751 3858 W 1 10 1 2 27 0 M 34 2 M 0000 5E GGA data format Position fix indicator Table 4 GGA data format ...

Страница 13: ...ystems Technologies Pvt Ltd Page 16 of 29 Confidential 6 3 GLL Geographic Position Latitude Longitude Table 5 contains the values for the following example GPGLL 3723 2475 N 12158 3416 W 161229 487 A A 41 GLL data format Table 5 GLL data format ...

Страница 14: ...Wave Systems Technologies Pvt Ltd Page 17 of 29 Confidential 6 4 GSA GNSS DOP and Active Satellites Table 6 contains the values for the following example GPGSA A 3 07 02 26 27 09 04 15 1 8 1 0 1 5 33 GSA data format Table 6 GSA data format ...

Страница 15: ...age 18 of 29 Confidential 6 5 GSV GNSS Satellites in View Table 7 contains the values for the following example GPGSV 2 1 07 07 79 048 42 02 51 062 43 26 36 256 42 27 27 138 42 71 GPGSV 2 2 07 09 23 313 42 04 19 159 41 15 12 041 42 41 GSV data format Table 7 GSV data format ...

Страница 16: ...echnologies Pvt Ltd Page 19 of 29 Confidential 6 6 RMC Recommended Minimum Specific GNSS Data Table 8 contains the values for the following example GPRMC 161229 487 A 3723 2475 N 12158 3416 W 0 13 309 62 120598 10 RMC data format Table 8 RMC data format ...

Страница 17: ...9 iWave Systems Technologies Pvt Ltd Page 20 of 29 Confidential 6 7 VTG Course Over Ground and Ground Speed Table 9 contains the values for the following example GPVTG 309 62 T M 0 13 N 0 2 K A 23 VTG data format Table 9 VTG data format ...

Страница 18: ...ser Manual REL1 9 iWave Systems Technologies Pvt Ltd Page 21 of 29 Confidential 6 8 ZDA Time Date Table 10 contains the values for the following example GPZDA 181813 14 10 2003 4F ZDA data format Table 10 ZDA data format ...

Страница 19: ...y signals on the top layer of the customer PCB just below GPS module Better to provide ground shape on the top layer of customer PCB just below GPS module Do not provide any open mask on top layer of customer PCB just below GPS module RF shielding on GPS module is connected to ground Ve DC please take care when fixing the GPS module to customer PCB ...

Страница 20: ...eters required for start using Lat Lon Alt 3 Development Data On Off 105 Development Data messages On Off Select Datum 106 Selection of datum to be used for coordinate transformations MSK Receiver Interface MSK Command message to a MSK radio beacon receiver Table 11 NMEA Input Messages 1 Message Identification MID 2 Input coordinates must be 3 WGS84 Input coordinates must be WGS84 Transport Messag...

Страница 21: ...sage is terminated using Carriage Return CR Line Feed LF which is r n which is hex 0D 0A Because r n are not printable ASCII characters they are omitted from the example strings but must be sent to terminate the message and cause the receiver to process that input message Note The message is sent with a checksum field hex digit hex digit at the end Compute the checksum by exclusive ORing all chara...

Страница 22: ...ity Generally this command is used to switch the module back to SiRF binary protocol mode where a more extensive command message set is available When a valid message is received the parameters are stored in battery backed SRAM and the Evaluation Receiver restarts using the saved parameters Table 13contains the input values for the following example Switch to SiRF binary protocol at 9600 8 N 1 PSR...

Страница 23: ...ion Receiver to search for the correct satellite signals at the correct signal parameters Correct initialization parameters enable the Evaluation Receiver to acquire signals quickly Table 14 contains the input values for the following example Start using known position and time PSRF101 2686700 4304200 3851624 96000 497260 921 12 3 1C Table 14 Navigation Initialization Data Format Table 15 Reset Co...

Страница 24: ...c output Checksums may also be enabled or disabled depending on the needs of the receiving program NMEA message settings are saved in battery backed memory for each entry when the message is accepted Table 16 contains the input values for the following examples 1 Query the GGA message with checksum enabled PSRF103 00 01 00 01 25 2 Enable VTG message for a 1 Hz constant output with checksum enabled...

Страница 25: ...de coordinates clock offset and time This enables the receiver to search for the correct satellite signals at the correct signal parameters Correct initialization parameters enable the receiver to acquire signals quickly Table 17 contains the input values for the following example Start using known position and time PSRF104 37 3875111 121 97232 0 96000 237759 1946 12 1 07 Table 17 LLA Navigation I...

Страница 26: ...GSA message PSRF103 02 00 01 01 27 10 For enable GSV message PSRF103 03 00 01 01 26 11 For enable VTG message PSRF103 05 00 01 01 20 12 For enable RMC message PSRF103 04 00 01 01 21 You can check the working of iWave GPS module as a stand alone unit just by connecting it to PC through RS232 Transceiver and You can download NMEA Monitor from below given link http homepage2 nifty com k8 gps file Nme...

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