* PID controller unittest
* Clean code for yaw spin recovery
* Yaw spin recovery optimizations
* Flash size optimizations, use 50% throttle when airmode is off, and override pidsum_limit_yaw
Also rebasing from betaflight/master
* Revert "Revert "Rewritten F7 dshot to LL (draft)" (#5430)"
This reverts commit aa42a69d2f.
* Reworked F7 linker scripts to maximize performance of both F74x and F72x
* Some comments and changes from original F7 HAL DSHOT
* Prohibit inlining of some functions to place them in ITCM-RAM
* Fixed usartTargetConfigure implicit declaration
* Moved back to SRAM1 as main RAM
* Added SRAM2 attribute
* Fixed LL DSHOT FOR SPRF7DUAL and probably other adv TIM users
* Fixed SPRF7DUAL rev. A motor order
* Enabled CCM for data on F40x
* Fixed F7 startup assembly symbols
* Fixed KISSFCV2F7 linker script
* Added a quick way of building F7 targets only
* Got rid of the useless F7 target script
* Added NOINLINE and got rid of useless __APPLE__ define
* Added some important functions to ITCM
* Added NOINLINE macro for tests
* Copy to ITCM before passing execution into it
* Minimized cache footprint of motor output code
* Evicted low-impact functions from ITCM
* Switched MATEKF722 and SPRACINGF7DUAL to burst DSHOT
* Switched CLRACINGF7 to burst DSHOT
* Moved UART RX&TX buffers to DTCM-RAM to avoid cache incoherency
* Marked taskMainPidLoop for ITCM-RAM, disallowed inlining per-function
* Revert "Added a quick way of building F7 targets only"
This reverts commit 2294518998.
* * Put PID variables into the structure
* Precalculate DTerm gyro filter outside the axis loop
* Removed unused variables PIDweight[3], airmodeWasActivated
* If zero throttle or gyro overflow, we can just set values and exit, this saves checks and jumps in axis loop
* Compute PIDSUM after the axis loop, this saves branching inside the loop because of Yaw has no D term
* * Incorporated review changes from DieHertz and fujin
* * Incorporated another review requests from DieHertz
- PidSum renamed to Sum
- pidData[3] redone to pidData[XYZ_AXIS_COUNT]
Adds new throttle_limit_type and throttle_limit_percent parameters that allow the pilot to limit the maximum commanded throttle seen by the flight controller by either scaling or clipping the maximum throttle. The default is 100 representing no limiting. So as an example, if a pilot was to set throttle_limit_type = SCALE and throttle_limit_percent = 80 the throttle input would scale from 0 to 80% based on full stick deflection from the radio.
This capability replaces the method of limiting throttle in the radio which some pilots are using to manage throttle on tight courses or reduce overall battery consumption when the extra power isn't needed.
There is no effect on the maximum throttle seen by the motors so the mixer still has full authority.
* Fix for minthrottle when feature 3d and pwm enabled
* add parameters for min and max 3d output
* bug fix
* remove new parameters from msp
* remove new parameters again
* fixed indentation
Saves 72 bytes. Will save at least that additionally when incorporated into Runaway Takeoff Prevention (which also calculates the pidSum in two places).
Additionally adds a slight performance improvement by not repeating the floating point additions to calculate the pidSum in multiple places. Effectively replaces 2 calculations with 1 (4 with 1 with Runaway Takeoff Prevention).
