The test suite includes:
•
Install QFU Bootloader program via ST flash tools (STM32CubeProgrammer).
•
Use USB connection and Host PC to install the application firmware program (USB
to Serial Converter and LCD display driver).
•
Test E108-GN01 module using the lab GNSS antenna which is the same model as
supplied in the QLG2 kit, and is lying outside on a sloping tile roof that slopes
towards the East.
•
Ensure time-to-first-fix (TTFF) is under 1 minute; on a sample of 20 units, the TTFF
was found to range from 23 seconds to 52 seconds, with an average of 36 seconds.
•
Check correct operation of Serial data and 1pps signals via status LEDs
•
Check application firmware was correctly installed and microcontroller is running
properly, by connecting a Terminal Emulator via USB and observing the NMEA serial
data.
These tests give a very high confidence that all QLG2 modules shipped by QRP Labs will
be in proper working order.
7. Acknowledgments
QRP Labs wishes to sincerely thank ST
Microelectronics
the CPU division for their assistance in the
development and production of this project.
8. Resources
For updates relating to this kit please visit the QRP Labs QLG2 kit page
. This web page also contains links to the E108-GN01 datasheet and the GK9501
command reference
For any questions regarding the assembly and operation of this kit please join the QRP
Labs group, see
9. Document Revision history
1.00 20-May-2020
First version for QLG2 firmware version 1_00.QG2
1.00a 21-May-2020
Minor edits to clarify a couple of points
QLG2 manual for firmware 1.00a
27
