Any advise to troubleshoot the video streaming issue?

@Adrian-Hidalgo

Thank you for your patient!

Recall the changes between spin and no-more-spin is active VIO and VOA services while indoor. Then disable both VIO and VOA service, but motor no longer spin after reboot.

Finally found a solution without flashing the system image:
Step 1: load https://gitlab.com/voxl-public/flight-core-px4/px4-parameters/-/blob/master/helpers/rb5/ekf2_outdoor_gps_mag.params
Step 2: set vehicle param COM_ARM_WO_GPS to 1
Step 3: power cycle RB5

Now arm RB5 after it comes back online, motor spins. -:)
Hope this helps anyone else running into same issue.

@Adrian-Hidalgo

thank you for your notes.

Double check the cable from RB5 to ESC per https://docs.modalai.com/images/rb5/rb5-labeled-3.png . The cable is plugged on both ends.

Yes, dx6e is the transmitter. Did load indoor helper (https://gitlab.com/voxl-public/flight-core-px4/px4-parameters/-/blob/master/helpers/rb5/ekf2_indoor_vio.params) and dx6e helper (https://gitlab.com/voxl-public/flight-core-px4/px4-parameters/-/blob/master/helpers/rb5/spektrum_dx6e_config.params).

Also did load single platform file (https://gitlab.com/voxl-public/flight-core-px4/px4-parameters/-/blob/master/platforms/v1.12/RB5_Flight/RB5_Flight_V1_param_rev_A.params).

After load above three files, we power cycle RB5 and still no motor spin on ARM.

Question is why we need to flash system image after loading platform file? Is this a routine thing we need to do with any platform file loading? Or we flash system image for troubleshooting purpose?

Any method (such as wavros?) to create the missing DSHOT_TEL_CFG ? Why would reflash system image create such missing parameter?

Hi @modaltb

https://gitlab.com/voxl-public/flight-core-px4/px4-parameters/-/blob/master/platforms/v1.12/RB5_Flight/RB5_Flight_V1_param_rev_A.params has

################################################################################

Motors/ESCs

################################################################################

disable dshot, use uart instead

1 1 DSHOT_CONFIG 0 6
1 1 DSHOT_TEL_CFG 0 6

=============

Looks like DSHOT_TEL_CFG is related to Motors. So missing that from PX4 probably relate to the no-motor-spin issue here.

How do we add this PX4 param? How could this parameter be missing?

Hi @modaltb
When vehicle is armed, there is another message showing on the QGC. The message is

Failsafe mode activated

Then there is no motor spin.

When going to QGC->Vehicle Setup->Safety, another message shows "Missing params: 1:SDLOG_MODE"

Hi @modaltb
The vehicle was powered via benchtop/AC adapter. We have tried 4S battery as well now. Still no-motor-spin when ARM even when vehicle is battery powered. Under either powering method, the blue LEDs on the ESC always flashing.

There is a failure when loading https://gitlab.com/voxl-public/flight-core-px4/px4-parameters/-/blob/master/platforms/v1.12/RB5_Flight/RB5_Flight_V1_param_rev_A.params

The error message is
Parameters are missing from firmware. You may be running a version of firmware which is not fully supported or your firmware has a bug in it. Missing params: 1:DSHOT_TEL_CFG

Looks like DSHOT_TEL_CFG does not exist on the vehicle. How do we create this missing parameter? Does this parameter have anything to do with motor spin?

RB5 firmware info:

rb5-flight-versions

SDK version:
rb5-flight-sdk: [trusted=yes]

PX4 versions:
modalai-slpi: 1.0-6
px4-rb5-fligh: 1.4-6
px4-support: 1.0-4
libfc-sensor: 1.0-2

System Image:
1.0.5-M0052-9.1-perf

On MAVLink Console, type
modalai_esc

no response from vehicle's system shell.
Is this normal?

After rebooting RB5, MAG #0 error msg is gone.

Still no motor spin after a successful ARM.

Another question is on vehicle setup, which sub-type should be selected for RB5? Generic Quadcopter?

QGC does have warning messages:

MAG #0 failed: TIMEOUT!

May not be related. Does each unit of RB5 store a copy of its unique factory calibration data (such as compass, etc.) on its file system so that we can always restore such factory parameters? If so, where is path of such data?