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Custom V11.2
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@shellixyz shellixyz released this 01 Jan 14:28
· 4 commits to master_custom since this release
custom-v11.2
34ab839

Changes since Custom V11.1

All vehicles

MavFTP

Changes have been made to prevent MavFTP failing to init in most cases for MCUs with low amount of RAM

Targets

The SpeedyBeeF405WING target has been added (thanks @mf0o) and is available in the light release

OSD

  • Wide sidebars have been ported from upstream (thanks @mf0o)
  • Betaflight's MSP DisplayPort symbols table used for DJI O3 has been updated/fixed (thanks @mf0o)
  • The home and waypoints arrow direction has been fixed for DJI O3 (Betaflight MSP DisplayPort) (thanks @mf0o)

Plane

FLTMODE_EXT parameter documentation

The documentation for the FLTMODE_EXT parameter which controls switching between 6 and 12 flight modes has been improved. It now includes the PWM ranges for the 12 flight modes mode.

Servos autotrim

The SAT_FINISHTHRESH parameter has been added to define when the trim of a control surface is considered good which defaults to 20. The value means that if the trim of a control surface has changed less than this amount during the last 10s time window then the control surface is considered trimmed. When all the control surfaces are considered trimmed then the servos autotrim operation is considered finished and will stop in case you have started it with the flight mode (see below), a channel aux function or had set SERVO_AUTO_TRIM to 1 (once).

Also a new servos autotrim flight mode (id 27) has been added which prevents wasting a channel to use servos autotrim. You can now instead just use the mode switch channel. To use just set FLTMODEx to 27.

Autotune

The autotune flight mode has been improved to now not need any changes to the PTCH/RLL_AGL_* parameters before tuning and it now uses the set PTCH/RLL_AGL_P parameters as a starting point. Note that if you enter the autotune flight mode the PTCH/RLL_AGL_D parameters are being reset to 0. The PTCH/RLL_AGL_I/FLTT are also set to 0 but only temporarily and are being reverted to the previous value when exiting the autotune flight mode.

Steering assist

Steering assist now supports driving in reverse with reverse throttle. Before this version it would steer the wrong way making the plane direction uncontrollable while reversing. If the speed of the plane is less than 0.5m/s the assumed travel direction is based on whether reverse throttle is engaged or not. Above this speed the heading based on the ground speed vector is used to determine whether the plane is moving forward or backward.

Tuning sets changes

After upgrading to 11.2 if you are using RC tuning make sure to check the value of TUNE_PARAM as some of the tuning sets' IDs have been changed. Here is an exhaustive list of changes:

  • Set_THR2PTCH: 111 now doesn't include the parameters for the positive pitch compensation. These are now found in the Set_THR2PTCH_full set (ID 112)
  • Set_THR2PTCH_full: 112 displaces Set_Coordination, which was 112 before, and all the sets with IDs greater than that to old_ID+1
  • The sets which were for the ROLL or PITCH axis specifically have been re-ordered so that the PITCH sets are before the ROLL sets. It was the opposite before
  • A new set Set_FWPitchRollPIDs (ID 124) has been added which contains all the plane rate and angle PID parameters for both PITCH and ROLL

RC tuning selector channel

The timing for the RC tuning selector channel functions have been modified so that it is possible to tune planes faster:

  • For re-centering the tuning channel the selector channel need to be high between 50 and 500ms instead of a minimum of 200ms before these changes
  • Switching to the next parameter in the current tuning set requires the selector channel to be held high for 500ms instead of 3 seconds previously
  • Saving the tune now only requires the selector channel to be held high for 3 seconds instead of 5.

Also it is now possible to define 3 sets of parameters you can switch between with the tuning selector channel:

  • If the tune selector channel value is between 900 and 1199µs then the set in the TUNE_PARAM parameter is loaded
  • If the tune selector channel value is between 1200 and 1399µs then the set in the TUNE_PARAM2 parameter is loaded
  • If the tune selector channel value is between 1400 and 1599µs then the set in the TUNE_PARAM3 parameter is loaded
  • The tune selector channel low level value consequently needs to be within these ranges. The selector channel high value is considered high when it is above 1700µs as before. If you do not wish to use more than one set you can do so by just like before by assigning a switch to the tuning selector channel with an offset of 0% and a weight of 100%.

The allow_channel_reversing bit in RC_OPTIONS has been removed

It has been removed since it simplifies the code, makes the binaries smaller and it seems like there is no point of having it. So RC AUX functions (used with RCx_OPTION > 0) can now be reversed by just setting RCx_REVERSED to 1 so that the function is active when the channel value is below 1700µs instead of over 1700µs. Note that the behavior is now different for "relays", see next section.

"Relays"

The range of PWM inputs for turning on relays can now be configured and need to be set with RCx_MIN / RCx_MAX. If you have a relay configured on RC7 for example and have set RC7_MIN = 1200 and RC7_MAX = 2000 then the relay will the turned on when RC7's value is between 1200 and 2000 and otherwise will be turned off.

The relay outputs are now initialized on boot-up following the RCx_REVERSED parameter. If RCx_REVERSED is set to 0 the corresponding relay output will be set low on boot-up while if it is set to 1 then the relay output will be set to 1. It is particularly useful for example with Matek flight controllers which video power switchable pads are turned off when the corresponding GPIO/relay is switched to a high state. It means that by setting RCx_REVERSED to 1 for the relay output controlling the video power switch pad your VTX will be off after boot-up even if you don't have your radio turned on.

A nice side effect of this feature is that you can now use a single channel to control both the power supply to your VTX and the OSD layout if your VTX can be controlled with a "relay" output for example.

Throttle slew rates

Throttle slew rate parameters are now a float type which means the resolution is greatly improved and they can be set to much bigger values than before.

Upgrading from V11.1

  • If you are using RC tuning check the TUNE_PARAM* parameters and the values you are sending onto the tune selector channel (see the "RC tuning selector channel" section above)
  • If you are using "relay" outputs make sure your RCx_MIN/MAX parameters for the RC channel used as relays are set to represent the range you want the relay output to be high for (or low for if you have set RCx_REVERSED to 1)
  • You don't need the allow_channel_reverse (bit 7) to be set in RC_OPTIONS for the RCx_REVERSED parameters to be effective to RC AUX channel functions so check that these are set appropriately if you didn't have the allow_channel_reverse bit set.

If you cannot find binaries for your board here first check the light variant of this release as boards with F4x5 MCUs having only 1MB flash cannot fit the full custom release. If you still cannot find binaries for you board you can ask me for binaries for your board to be added on the Ardupilot users Telegram group.

The complete parameters documentation for this release can be found here.

Contributors

mf0o
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