ST com Teseo-LIV3F Tiny GNSS Module User Guide

ST com Teseo-LIV3F Tiny GNSS Module

Introduction

• Teseo III – Binary Image and Teseo Modules embed also the Data-Logging sub system
• Data-Logging can be used to track/record a path
• Data-Logging subsystem has a set of specific NMEA commands and messages to operate

Create a log

A log is created to specify:

• Configuration
• Log type
•  Lowest speed, lowest rate and lowest distance to record a new sample in the log

Start, stop and delete a log

A log can be started, stopped and deleted by the host with the following commands:

Query the data-logging state

• Host can query the datalogging subsystem state with the command:

• Teseo III replies with the message:

• Where it reports:
  • Time and date of the first and last sample*
  • Number of used and free entries
  • Buffer status
• Host can query the log with the command:

• Teseo III replies with one message per sample:

Putting all together

Using the Teseo-Suite, the Host can send the commands and check the Teseo III message responses.

• HOST > $PSTMLOGCREATE,1,1,0,0,1
• T3 < $PSTMLOGCREATEOK*5E
• HOST > $PSTMLOGSTART
• T3 < $PSTMLOGSTARTOK*1A
• HOST > $PSTMLOGSTOP
• T3 < $PSTMLOGSTOPOK*42
• HOST > $PSTMLOGREQSTATUS
• T3 < $PSTMLOGSTATUS,084126,20181128,084146,20181128,21,0,43627*67
• HOST > $PSTMLOGREQQUERY,084127,20181128,20
• T3 < $PSTMLOGQUERY,1,1,084126,20181128,3,2,1,37.441792,15.060400,0.0,0.0,0.0*0c
• T3 < $PSTMLOGQUERY,3,1,084146,20181128,3,2,1,37.441792,15.060400,0.0,0.0,0.0*09
• HOST > $PSTMLOGERASE
• T3 < $PSTMLOGERASEOK*1A

Take care of

The first field in the $PSTMLOGQUERY is a bitmap which specifies:

• 2b00: No more data, and the data in the message is invalid
• 2b01: more data available, and the data in the message is valid
•   2b11: No more data available, and the data in the message is valid

Documents & related resources

All documents are available on: www.st.com

• Teseo III: Webpage
  • Datasheet of all PNs;
• Teseo Modules: Webpage
  • Datasheet
  • User Manuals
• Teseo-Suite: Webpage
  • Datasheet
  • Training materials
  •  Install program

References

• TESEO-SUITE - PC software tool to manage, configure and evaluate the performances of Teseo GNSS family - STMicroelectronics
• GNSS Receiver IC, System-On-Chip (SoC) for GPS/Beidou/Galileo/Glonass/QZSS - STMicroelectronics
• TESEO-SUITE - PC software tool to manage, configure and evaluate the performances of Teseo GNSS family - STMicroelectronics

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>