Using U-Center, I can configure setup I want but cannot save it. i’ve been using U-Center for years on other boards.
This is new problem.
I need the 10Hz output and set gps to 115,200 bps, NAV-POSLLH, etc. SBAS, GLONASSS, GPS etc.
I’m using the Serial port via an FTDI cable. The cable is of unknown origin but has jumper for 3V or %v - I’m using 3V.
U-Center version 20.010 on Windows 10.
I had been using an Arduino UNO with the RST shorted for configuring other Ublox GPS’s I have. I haven’t tried it on this one, have to go to office to get USB cable for the uno.
I bought the ZOE-M8q in June 2019 but hadn’t tried it until yesterday.
Could this be a firmware problem? What would you look for?
Have you recharged the small back-up battery on the ZOE breakout? You will need to leave it connected for several hours to let it charge up. Only then will it maintain the non-volatile memory when the power is disconnected.
SPARKFUN writes “U-blox based GPS products are configurable using the popular, but dense, windows program called u-center. Plenty of different functions can be configured on the ZOE-M8Q: baud rates, update rates, geofencing, spoofing detection, external interrupts, SBAS/D-GPS, etc.”
Reading this, I assumed that U-Center configurations could be saved to FLASH. Why else would you use U-Center other than maybe to see what effect various configurations have in real-time?
It appears that this board has no flash to remember configurations, so my error when i bought it. I see that there is enough insight in the libraries for me to initialize it to the configuration I want every time I fire it up. I’m using a Teensy3.5 and hope that it has enough space for the additional code.
The Zoe M8Q is a nice chip, but I really didn’t need all this exercise.
FWIW, I left it connected overnight.
Please point out any erroneous thinking in what I’ve written above.
Ah, OK. You said you had been using u-center for years, so I assumed you knew about the using the UBX_CFG_CFG message to save the configuration to battery-backed-RAM or Flash?
Battery-backed-RAM is what you need, and the small rechargeable cell maintains that.
You will see that many of the examples call the commands saveConfiguration (which saves everything) or saveConfigSelective (which saves selected settings to BBR):
you are correct, it is a bbr backed up configuration. I’ve gotta go back and see if the other ublox chips I’ve been using use flash - non-volatile memory.
now I’ve gotta put all the configuratpoin choices in setup. whee.
Sorry, Paul. I’m a little slow This was my first ZOE. I heretofore had been using UBlox NEOs which had flash memory which of course would retain my custom configurations. It never occurred to me that they would do it another way.
The UBlox ZOE notes suggest the External flash could provide this function. The chip itself seems pretty capable, and in some aspects better than what I’ve been using. I wonder if SPARKFUN might consider a repackage including the FLASH sometime soon.