Lantronix PNT Series driver and firmware
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PNT-SG3FS GNSS Module Software User Guide - Page 2
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PNT-SG3FS GNSS Module Software User Guide
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... 14 List of Tables 15
1. Introduction
22
Overview 22
2. Firmware Version
23
Firmware Update Algorithm Protocol 24
Firmware Update Software Tool 27
Port Settings Option 28
Firmware Options 28
Upgrade Process 28
3. Receiver Description
29
GPS/Galileo/GLONASS/BeiDou Base Band (G3BB+) Processor 29
Receiver Configuration 29
Configuration Concept 29
Configuration Data Blocks...
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... mode setting 1 253
CDB-ID 223 - LMS operating mode setting 2 253
CDB-ID 231 - CDB-ID 232 - NMEA on I2C Port Message List 253
CDB-ID 237 - Default GPS MIN-MAX week number 253
CDB-ID 238 - Default UTC delta time 254
CDB-ID 257 - Periodic operating mode setting 1 254
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... 2 Supported on Geofencing 49 Figure 15: Scenario 1 Supported on Odometer 50 Figure 16: Scenario 2 Supported on Odometer 50 Figure 17: Adaptive and Cyclic Mode State Diagram 54 Figure 18: Low-Power Periodic Mode State Diagram 56 Figure 19: GNSS Good Coverage Sequences 58 Figure 20: GNSS Poor Coverage Sequences 59
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... RTK/PPP client algorithms for precise positioning applications. The module supports 1.8V or 3.3V power supply domains and an embedded 16Mb flash memory that enables support for many features including data logging, geofencing, odometer, 5 day autonomous assisted GNSS, and firmware updates. The PNT-SG3FS module further integrates a temperature compensated crystal oscillator (TXCO) for navigation...
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... to manage. The binary firmware version defines the set of messages the Teseo III chipset is able to manage. Refer to ST Microelectronics' UM2399 User Manual ("ST Teseo III binary image - User manual"), Section 2.2.
The command [$PSTMGETSWVER] returns the firmware and all software versions in string format. While booting, the PNT-SG3FS reports on the serial port the current configuration as shown...
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2. Firmware Version
Firmware Update Algorithm Protocol
The PNT-SG3FS supports firmware upgrades. Both the Host and PNT-SG3FS have to follow a well-defined protocol. Warning: Ensure that the Voltage VCC and VCC_IO are applied and stable throughout the
firmware upgrade process; a power outage, during the firmware upgrade procedure, could force PNT-SG3FS in an unrecoverable state. Firmware upgrade ...
PNT-SG3FS GNSS Module Software User Guide - Page 25
... received by the Host;if the check is passed an "ACK" response is sent back to the Host and the new downloaded firmware is validated.Otherwise if the check failed a "NAK" response is sent. In both cases the PNT-SG3FS device resets itself.
The firmware upgrade procedure is shown in Figure 2.
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...FLASHER_READY ACK
Value 0xBCD501F4 0x83984073 0xA3 0x4A 0xCC
Firmware Update Software Tool
PNT-SG3FS firmware updates are supported through the ST Firmware Upgrade tool.
The ST Firmware Upgrade tool is provided with the ST Teseo Suite Light program.
Figure 3: Firmware Upgrade Tool
When the user wants to update the PNT-SG3FS, PNT-SG3FS must be powered and under reset; the user must configure the...
PNT-SG3FS GNSS Module Software User Guide - Page 28
... update process can be stopped by clicking the Stop button.
When the upgrade has finished a confirmation message is displayed. If the process failed or was stopped by the user, no backup firmware can be executed; the only way to re-install a working firmware is to reset the hardware and start a new upgrade process.
PNT-SG3FS GNSS Module Software User Guide...
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... to address most of the specific HW constraints and/or the final product functionality requirements.
The firmware configuration management supports the "Factory Setting", embedded in the binary code, and the"Customized Setting", stored in the GNSS backup memory (NVM). The "Factory Setting" can be changed and saved at run-time using specific NMEA commands.
PNT-SG3FS binary image software...
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... Commands
To simplify the PNT-SG3FS module configuration, the device supports firmware configuration commands which are able to setup more than one CBD-ID with a single command. The PNT-SG3FS supports the configuration commands shown in Table 5 below:
Table 5. NMEA Configuration Commands
Name $PSTMCFGPORT $PSTMCFGCLKS $PSTMCFGMSGL $PSTMCFGTHGNSS $PSTMCFGTDATA $PSTMCFGCONST $PSTMCFGSBAS...
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... for GPS and 30 minutes only for GLONASS.
After that time the PNT-SG3FS must download new ephemeris data.
Ephemeris download can ... of device running periods in the past.
The module must operate in full power mode ...supports the following NMEA interfaces with the Host. For best performance, increase the CPU frequency when the STAGPS engine is enabled.
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... very useful to keep quality of the GPS experience,should a connected device lose its ability to contact the server for coverage or roaming issues or any other wireless connectivity problem.
While Autonomous AGNSS is completely transparent to the host device, the server-based (Predictive AGNSS) version should be downloaded from the server and passed to the...
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... service.
All the assistance data can be injected into the device backup memory using a few NMEA commands.
First, inject the current time into the device (if the device has no RTC, or if it is set ...be injected into the device using the $PSTMEPHEM command for each satellite(between two consecutive commands there must be at least a 20-millisecond delay).
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... (RxNetworks refers to as model ID; see mId in Appendix B)
The device id and password strings will be returned in response to the password generation NMEA command in a $PSTMSTAGPS8PASSRTN NMEA message. The parameters provided can be used to access the RxNetworks location.io service (refer to Section 4.1 in ST Microelectronics Application Note "AN5160: RxNetworks Assisted...
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... in the firmware-configuration are active during the runtime
o System fully running.
Next State
FULL_CONST only when all the three conditions are taken: o position fix available o almanac completely downloaded o ephemeris available (4 for GPS, 4 for
GLONASS);
LOW_POWER_STATE only if EHPE average is less than EHPE threshold (good sky condition)
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...-power oscillator)
♦ Standby state used in Standby Periodic mode, where only Always ON domain is alive
Although the Wait For Interrupt hardware state ensure continuity of software execution and maintain data, the Standby hardware state is a reset and ARM Core state and on-board memories except backup RAM are lost.
PNT-SG3FS GNSS Module Software User Guide...
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... GLONASS time applying the UTC delta time downloaded fromGLONASS satellites.
(2) GPS_UTC_FROM_GLONASS is the GPS time derived from GLONASS time applying the GPS delta time downloaded fromGLONASS satellites. If the software is configured to work in GLONASS only mode, UTC(SU) is identical to UTC and GPS_UTC_FROM_GLONASS is identical to GPS_UTC
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PNT-SG3FS GNSS Module Datasheet - Page 17
7. Firmware Update Support and Configuration
7. Firmware Update Support and Configuration
The PNT-SG3FS receiver module can be updated with new firmware releases. All configuration parameters are grouped in a data block. Each field is addressed by a unique ID. The IDs consist of three digits: the most significant one represents the parameter type and the others are used to identify different ...