BZGNSS GPS modules only running at max 5Hz

Pairan commented 1 year ago

Currently the new M10 GPS modules from BZGNSS (e.g. BZ-121, BZ-181, BZ-251) only run at 5Hz although they are capable of 10Hz refresh rate (when not ALL systems activated if I read right). The GPS units are defined as this:

Chip:u-blox M10050(Ten Generation Chip)
Pattern: GPS,GLONASS,BDS,GALILEO,SBAS,QZSS(Default GPS+GLONASS+BDS joint positioning)
FLASH:Supported
Frequency:GPS L1,GLONASS L1,BDS L1,GALILEO L1,SBAS L1,QZSS L1
Power:5V
Size:12x16x4.5mm
Interface:PCB Pad
Weight:2.2g
Antenna:Ultrathin Ceramic Antenna (oil spraying process, prevent scratching and oxidation)
Receiving channels:72 search channels
Baud rate:115200dps
Output Protocol:NMEA / UBLOX (Dual protocol)
Output Frequency:1Hz-10Hz. Default 10Hz
Speed accuracy:0.05m/s
Horizontal Positioning Accuracy: 2D ACC 1.5m(open air)
Receiving Sensitivity:Trace-162dBm / Capture -160dBm

INAV works fine with these units just cant get up at 10Hz by now as it seams ...

grafik

Current Behavior

INAV (5.1) operates these GPS units at max 5Hz

Steps to Reproduce

connect the GPS unit accordingly
set UBLOX7 protocol
take a look at the refresh rate

Expected behavior

I would like to get it up at 10Hz like on the older modules (Beitian BN-180). After having set the rates to 10Hz in U-Center (2) and saving it to flash, it gets reset after INAV has booted up. ... am I doing anything wrong here? grafik After INAV has booted up, the refresh rate is back at 5Hz / 200ms

Additional context

Perhaps the setup for the GPS units have changed with M10 chips

INAV/MATEKF405SE 5.1.0 Aug 19 2022 / 12:05:31 (76f22b25)

GCC-10.2.1 20201103 (release)

grafik

stronnag commented 1 year ago

The setting for M10 is by design. Not being limited to 16 satellites is considered more important than 10Hz.

stronnag commented 1 year ago

See #6269

Pairan commented 1 year ago

Thanks for the update, mate ... wasn't aware of it!

iNavFlight / inav