The MAVLink specs for CreateFile in MAVLink FTP were updated on Dec 23, 2020 (today) with a behavior change to truncate a file if it already existed, following the UNIX standard behavior: https://pubs.opengroup.org/onlinepubs/9699919799/functions/creat.html. This change is tracking that spec change. While it is a functional change, the limited usage of the FTP protocol and the fact that implementations should not rely on error states to determine wether to truncate a file or not makes this a viable change.
Without range finder, the validity flag goes to false quite quickly and
if can be that a vehicle never starts HTE is the takeoff is too slow.
In this specific context of takeoff detection, since
the exact value is not important, we can safely ignore the validity flag.
the _landed flag only is not enough to tell if the drone is still touching
the ground, so an additional check based on the altitude AGL is required.
to have this in_air detection correctly updated, the module needs to be
scheduled on the vehicle_local_position message as no setpoint is
produced in non-assisted modes.
- ecl in PX4/Firmware (dc358857c877ae01b922d84a6c6fffe6d8c46810): https://github/commit/1541e4b414fe63ec9d6c3077375db7e20c20ef4a
- ecl current upstream: https://github/commit/a8e0e82858318042500f96f5ee882c638f201426
- Changes: https://github/compare/1541e4b414fe63ec9d6c3077375db7e20c20ef4a...a8e0e82858318042500f96f5ee882c638f201426a8e0e82 2020-12-08 Daniel Agar - EKF: update mag LPF immediately
398fe15 2020-11-02 Daniel Agar - EKF: allow initialising without mag depending on configuration
1237087 2020-12-16 Daniel Agar - AlphaFilter add constructor that takes alpha and use in EKF
37e84b7 2020-12-16 Daniel Agar - README: fix zenodo badge (rename ecl -> PX4-ECL)
5ccb8b4 2020-12-15 Mathieu Bresciani - fakePosFusion: reset _last_known_posNE to current state when starting (#943)
9d22f14 2020-12-10 bresch - gps_alt: constrain var using 1.5 as a typical ratio of vacc/hacc
b0cf45e 2020-12-10 bresch - gps_alt: rename getGpsAltVar -> getGpsHeightVariance
62f2e26 2020-12-10 bresch - gps_alt: reset GPS alt variance usign helper function
f7bddda 2020-12-10 bresch - gps_alt: do not scale up reported gps vertical accuracy
02369cd 2020-12-10 bresch - gps_alt: extract measurement variance computation and saturation
- verify register writes
- cleanly reset on lighting mode changes as per the datasheet
- perf counters for mode switches and other errors
- cleanly reset on false motion detection
- minimize sleep on reset
- allowing setting custom rotation yaw angle directly on command line with -Y (ignoring SENS_FLOW_ROT)
- enable LED output
- updating the global position validity should happen regardless of
being in manual position control mode with only optical flow
- condition_global_position_valid needs to be accurate to adjudicate
main state changes (eg going into AUTO MISSION)
- split out switches from manual_control_setpoint into new message manual_control_switches
- manual_control_switches published at minimal rate (~ 1 Hz) or immediately on change
- simple switch debounce in rc_update (2 consecutive identical decodes required)
- manual_control_switches logged at full rate rather than sampled at (5-10% of messages logged)
- manual_control_setpoint publish at minimal rate unless changing
- commander handle landing gear switch for manual modes
- processing of mode_slot and mode_switch is now split so we only do one or the other (not both)
- a future step will be to finally drop mode_switch and accompanying switches entirely
Co-authored-by: Matthias Grob <maetugr@gmail.com>
Nicolas MARTIN