July 29, 2020
Agenda
- Status update by component/project
- Roadmap, and Release discussion
- Community Q&A
- In-Depth discussions
Join Meeting
Meeting ID: 946 175 205
Join using your mobile/desktop
Call in using your phone, find your local number: Zoom International Dial-in Numbers - Zoom
Component update
Hardware Workgroups
Payload / FMU / BMS
Last call FMUv6 was discussed. The design is close to be released. Some documents are still being checked. Standard will be announced. Gumstix will make a prototype board.
System Architecture
Logger changes about the default logger profile. Potentially remove the replay logging from default profile to make sure we can use cheap SD cards for longer.
Make sure gaps in logging are recorded and get noticed.
https://github.com/PX4/Firmware/pull/15440
Better handling of buffer overflow.
https://github.com/PX4/Firmware/pull/15439
OS / NuttX
@david_s5 was looking into a problem with telemetry related to Nuttx.
NuttX release is out, we can go back to working on upgrading.
@dagar F412 backport or wait for the update? Depends on the effort also on testing.
Driver
Contribution of fixes in optical flow driver
https://github.com/PX4/Firmware/pull/15433
DSM RC parsing more robust
https://github.com/PX4/Firmware/pull/15430
Crazyflie was not booting in master. @dagar fixed it and looked into using the new MPU driver to support the Crazyflie 2.
https://github.com/PX4/Firmware/pull/15421
Hex was renamed to CubePilot and the autopilot are called CubeYellow, CubeOrangeā¦ We renamed them.
https://github.com/PX4/Firmware/pull/15415
@JingerZ The board Yellow and Orange are not listed as supported currently. They should be listed as experimental/community supported. There will be a follow up discussion with @dagar
Commander
No updates
Estimation
- Progress on Python EKF derivation:
- Master of Firmware is out of date with ecl. New geo table doesnāt fit FMUv2. We might want to compensate the flash size increase with the auto code generation (Python derivation) savings.
https://github.com/PX4/Firmware/pull/15207
What path should we go update everything at the same time or small pieces and save flash with other means in between.
- Goal: Have a validity flag. Additionally @dagar found a bug with the delta-time.
https://github.com/PX4/Firmware/pull/15370
VTOL
VTOL attitude controller runs with 1200Hz when thereās no attitude setpoint published:
https://github.com/PX4/Firmware/pull/15383
Fixed Wing
Multicopter
Progress on land detection, thanks to @dagar :
https://github.com/PX4/Firmware/pull/15083
Testflights needed after check of @MaEtUgR comments. No major change anticipated.
Avoidance
No updates
Simulation
@JulianOes CI: we changed gazebo to be able to load different models. There was a race condition where gzserver was not yet present when trying to load the model and then there was no model and the tests failed.
https://github.com/PX4/Firmware/pull/15432
Script to run multiple simulation instances
https://github.com/PX4/Firmware/pull/15382
MAVSDK
New release today: 0.29.0
-
Main difference how user callbacks get called. Before there was a thread pool for the callbacks that caused potential threading issues. Now the callbacks are called from one thread and you have to do short callbacks and/or start new threads yourself if you call other blocking code.
-
Thereās a new feature and tutorial to be able to use a joystick.
-
MAVSDK on ARM improvements
-
Failure injection.
-
Bug fixes, see notes
MAVROS / DDS / ROS2
Testing of the serial link with ROS2 using a Pixhawk 4 and seeing good throughput with parallel topics.
What happened with Serial TX DMA in NuttX? There are issues like the GPS ones we had before. Thatās what @david_s5 meant we need to look into it before updating NuttX.
UAVCAN
PX4 UAVCANv1 work ongoing, no particular updates at the moment.
Release
For the 1.11 release we have the land detector issue that is pending. Itās now reviewed and needs final testing.
We should revive the tester GitHub group and add community volunteers such that they easily get notified when tests are needed.
Community Q&A
@JingerZ has a pr from CUAV Fix CUAV CAN_PMU power display as 0%, unable to unlock by CUAVcaijie Ā· Pull Request #15314 Ā· PX4/PX4-Autopilot Ā· GitHub
@dagar Does anyone have the hardware? He is looking into it and answering.
@nrogelio found an issue: Pixhawk 4 + Drotek Sirius RTK GNSS compasses inconsistent Ā· Issue #15312 Ā· PX4/PX4-Autopilot Ā· GitHub
He has an external compass issue that seems to be starting with the commit hash he posted. But itās strange because the commit doesnāt change the magnetometer parts of PX4. It sounds like the mag orientation is wrong but it has to be debugged. Maybe other GPS modules with the same mag have different orientation. The mag auto rotation ([WIP] commander: auto set external mag rotation during calibration if possible by dagar Ā· Pull Request #15120 Ā· PX4/PX4-Autopilot Ā· GitHub) would catch the problem if itās that.
In-Depth discussions
- Parameter meta data compressed on-board
https://github.com/PX4/Firmware/pull/15389
Would be good to have @hamishwillee and/or @bkueng in the call for further discussion.
@dagar motivates to think about trying to not miss out on any opportunities to rule exclude e.g. value ranges. Check MAVLink FTP performance, itās probably not performing as well as it could/should.
QGC uses a different protocol than MAVLink FTP to download logs. We need a mechanism to slow everything else down while transmitting the file and then switch back to normal operation.
- UAVCAN rangefinder support
https://github.com/PX4/Firmware/pull/15097
@dagar everything seemed fine except for they add their own custom DSDL which we should not carry that in PX4. We should forward the information into parameters.
- @JingerZ FMUv5x Holybro is making a new prototype. Does @dagar and @david_s5 want one?
@david_s5 has the old prototype and we need to communicate the required changes for the updated specs clearly.
Errata and Feedback
Let me know below if I failed to capture anything the right way, and if there are any updates, or you have feedback on the call format.