ardupilot Plane: stable 4.5.x issues list

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This is an issue to gather key issues for the plane 4.2-4.5 release

[ ] display message on pilot override active in VTOL pos controller (can prevent descent stage)
[ ] disable uart reboot checker for non-debug build
[ ] lua scripts sometimes do not start: https://github.com/ArduPilot/ardupilot/issues/25455
[x] https://github.com/ArduPilot/ardupilot/issues/25157
[ ] can AGL -> ABS fail in upload of rally point, leading to incorrect rally point height
[ ] scaling of baro gate with height: https://github.com/ArduPilot/ardupilot/issues/25337
[ ] pitch stick mixing can stall aircraft
[ ] https://github.com/ArduPilot/ardupilot/issues/25283
[ ] support new DroneCAN ESC status msg
[ ] slow down EFI update in periph
[ ] rapid mode change in DO_VTOL_TRANS test: https://github.com/ArduPilot/ardupilot/pull/24954
[ ] SBUS input corruption on F4: https://github.com/ArduPilot/ardupilot/issues/14105
[ ] add frame to fly to in mavproxy
[ ] check for no fence available in FENCE_AUTOENABLE pre-arm, to match FENCE_ENABLE
[ ] BVLOS quadplane docs: https://github.com/ArduPilot/ardupilot/issues/21876
[x] TECS descent in CRUISE mode (log from @Hwurzburg )
[ ] jetcat EFI applet
[ ] ublox jamming indicator #11239
[ ] add check for RC3_MAX at least 100 above RC3_MIN
[x] scripting bug: https://github.com/ArduPilot/ardupilot/pull/24106#pullrequestreview-1499782284
[ ] calculate USB strings at compile time for flash savings
[x] https://github.com/ArduPilot/ardupilot/pull/13760
[ ] pre-gen lua mavlink on firmware server
[ ] we should scale baro height process noise with pressure altitude
[ ] CANFD incorrect timing, giving bus off errors
[ ] add tcp option for support.ardupilot.org
[ ] lane switch add delay till all lanes have fused, or ensure consistent for some time period (eg. 50ms)
[ ] EK3 gate mod: https://github.com/priseborough/ardupilot/commits/pr-ekf3-gps-velpos-igate-mod
[ ] make stabilize mode use proper rate control
[ ] AUTOTUNE needs to reset SMAX to 0 during twitch
[ ] possible problem with disconnected RC on H16
[ ] resting voltage can be very bad
[ ] quadplane precland
[x] fix i2c probing of LEDs
[ ] add CAN pkt logging to DroneCAN gui tool and ardupilot, and log loading in gui tool
[x] possible bug in ICE restart
[ ] mavcan to multiple clients at once
[x] can gui tool panel for secure commands
[ ] add rate limited filter to airspeed to prevent large spike from corrupting airspeed
[x] default TECS_LAND_ARSPD to mid-point of cruise and min airspeed
[ ] propogate Dmod up to angle loop
[x] look at using -g -O2 for stable builds for better crash dump analysis
[ ] ATT.DesPitch and ATT.Pitch need to use the same pitch reference (ie. TRIM_PITCH_CD)
[ ] motor_lost_index never reset and not exposed in lua
[x] work out why 2048 byte reads in #23455 failed
[x] allow clear mission when disarmed in AUTO ?
[ ] add waf docs target?
[x] possible bug in RTSCTS?
[ ] Q_M_PWM_TYPE set in defaults.parm in ROMFS doesn't work for DS150
[ ] GSF yaw errors: https://github.com/ArduPilot/ardupilot/issues/23224
[x] mission on sdcard
[x] more flexible M10 config: https://www.rcgroups.com/forums/showpost.php?p=50442153&postcount=8212
[x] fix pitch limit in FBWA for transition: https://github.com/ArduPilot/ardupilot/pull/22730
[ ] after a bounce off the ground, PIQA.I can peg high (seen in Alia model)
[ ] switching to RTL when in landing sequence to cope with VTOL motor start fail doesn't change to fw mode
[ ] ARSPD_TUBE_ORDER=3 to auto-detect order
[ ] MS4525 probe all buses not working in 4.3 after update from 4.2
[ ] rudder arming causes yaw in AUTO takeoff #22665
[ ] VTOL approach can turn overshoot if WP_LOITER_RAD is small
[ ] COMPASS_DIA_X of zero not treated as 1.0 #22666
[x] level cal not clearing 3d accel cal needed msg?
[ ] CubeOrangePlus param diff BAT*PIN doesn't show changes
[ ] not using full throttle in non-airspeed takeoff: https://github.com/ArduPilot/ardupilot/issues/22572
[ ] random voltages with voltage pin -1
[ ] large over-tune can cause VTOL controller to climb-away, possibly lower default SMAX?
[x] with RTL autoland: Mode change to AUTO denied, in fence recovery
[x] MS5607 sub for MS5611 for Pixhawk1 Marco
[ ] annoying msg Cannot calibrate with Q_TRIM_PITCH set
[ ] not fully resetting tdrag takeoff state on new takeoff
[ ] ICE idle governor in Q modes while disarmed
[ ] Camera gimbal settings seem to be gone from QGC with Plane 4.3. ? (from fredrikfalkman)
[x] receive DO_AUX_FUNCTION in lua scripts
[ ] need better BVLOS advice and testing: https://github.com/ArduPilot/ardupilot/issues/21876
[ ] throttle slew limit when re-starting engine on RPM outage
[ ] reduce XY gains when rate gains activate Dmod?
[ ] incorrect CRSFv2 detection: 2022-10-02 14:07:47.120 CRSFv2: requesting RX device info
[ ] remove loop rate dependency on power limit for fixed wing
[ ] limit integetrator buildup longer for catapult launch
[ ] allow idle governor to control ICE idle in Q modes when disarmed
[x] scale down rate PIDs during back-transiton based on airspeed?
[ ] auto-lower pos controller gains when have attitude error?
[ ] should use EKF height and vertical velocity estimate not DCM on loss of GPS when in quadplane mode
[ ] add package drop support
[ ] always allow at least 10 deg roll limit for fixed wing
[ ] add arming check for VTOL I gain <= P gain on roll/pitch
[ ] motors spin sometimes on soft reboot of HWing
[ ] test ublox fw update with passthru
[ ] before triggering Q_ASSIST_SPEED, check EKF fusion of airspeed, if not fusing, delay assist speed
[ ] add mission and fence extraction to MAVExplorer
[ ] add tailsitter tune param for P, I, D sequence
[ ] option for median filter between synthetic airspeed and dual-airspeed
[ ] re-load mission on arming in AUTO? See https://discuss.ardupilot.org/t/striver-mini-vtol-4-1-quadplane/71805/185?u=tridge
[ ] rapid switching between EKF and DCM on baro error: https://discuss.ardupilot.org/t/excessive-ekf3-dcm-switching-in-plane-4-1-6/82966/5
[ ] look at methods of handling flash parity errors on H7, possibly using HW CRC
[ ] obey primary sensors with EK3_AFFINITY
[ ] motors spinning when they shouldn't? https://github.com/ArduPilot/ardupilot/issues/16630
[ ] force arm bypass of logging start and fence auto-enable
[ ] need force_descend change for quadplane: #17824
[ ] surface control while booting not working: #17966

Features for later 4.2.x releases:

[ ] sort out CAN baro ordering for plane, maybe option bit in BARO_OPTIONS, on plane default to can baro last
[ ] support rangefinder correction of AP_Terrain data, with configurable time constant

Dec 01 '20 03:12 tridge

* [ ]  hybrid landing with RTL/QRTL from high alt #10559

This is fixed with this: https://github.com/ArduPilot/ardupilot/pull/16977

Apr 22 '21 11:04 pompecukor

-[ ] fence in Plane: if action is guided to return point, and no point is entered, the median lat/long extremes of any fence is used...this generates out of bounds returns and looping behavior around zone boundaries.....should just RTL IMHO -[ ] if you lose GPS, and fall back to DCM?, there is no GCS message informing you of this while in normal flight -[ ] MP fence status, nothing is shown for the simple tincan around home when active