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38 Commits

Author SHA1 Message Date
Andrew Tridgell fed5426274 DCM: after some experimentation, raise the ki values a bit 
this tracks the max gyro drift more accurately
 2012-03-10 10:34:34 +11:00
Andrew Tridgell b67b0afd10 DCM: separate out the omega_yaw_P from omega_P 
this cleans up the separation of drift rates and proportional
correction from yaw source and accelerometers, allow the yaw
to run at a different rate to the accel correction
 2012-03-10 10:34:33 +11:00
Andrew Tridgell e470bf2354 DCM: minor tuning based on testing my quad 2012-03-10 10:34:33 +11:00
Andrew Tridgell 4c6afa36cb DCM: removed update_DCM_fast 
this combines the functionality of the 'fast' DCM with the normal one,
and also speeds up both the yaw drift correction and the matrix update
code
 2012-03-10 10:34:31 +11:00
Andrew Tridgell 61ebcfe9fe DCM: fixed the averaging of accel values for update_DCM_fast() 
this should improve drift correction for ArduCopter
 2012-03-10 10:34:28 +11:00
Andrew Tridgell a78b00513b DCM: added a small amount of gyro and accel smoothing 
possibly not needed, but convenient to be able to test with different
values
 2012-03-10 10:34:27 +11:00
Andrew Tridgell 82032b17a9 DCM: added reporting interfaces for DCM state 2012-03-10 10:34:27 +11:00
Andrew Tridgell 4e354a9731 DCM: got rid of _error_roll_pitch from object state 
this can be a local error variable in common with the yaw code. This
saves 12 bytes in the object.
 2012-03-10 10:34:27 +11:00
rmackay9 7c1d1b45a7 AP_DCM - fixed small compiler warning to do with order of parameters in constructor 2012-02-29 22:45:26 +09:00
Andrew Tridgell c63ca9c697 DCM: tidy up use of error_course and in_motion 
in_motion is not a good name now it is also used for the compass

The error_course and heading component values don't need to be part of
the DCM object, they can be on the stack to reduce the memory usage a bit
 2012-02-25 11:37:20 +11:00
Andrew Tridgell b4c8d6491a DCM: added matrix recovery on reset 
when we get a bad DCM error we can recover a matrix corresponding to
the current attitude, making it more likely that the aircraft will be
able to recover
 2012-02-24 11:52:55 +11:00
Andrew Tridgell 9caa4aeb44 DCM: range check the matrix before calculating pitch 
The asin() in the pitch calculation can only take values between -1
and 1. This change ensures that the value is in range, and if it isn't
then we force a normalization. If that fails we reset the matrix
 2012-02-23 08:16:08 +11:00
Andrew Tridgell 5cfe1ad5dc DCM: remove the taylor expansion optimisation for renormalisation 
The sqrt() costs about 44usec on a 2560, which is small enough for us
not to worry about the speed.

This also changes the range of values where we declare a blowup to
much less likely, which means we can cope with larger delta_t glitches
 2012-02-23 08:16:08 +11:00
Randy Mackay 98f3386ea0 Arduino 1.0 - changed all #includes of "WProgram.h", "wiring.h" and "WConstants.h to "Arduino.h". 
Modified FastSerial's write function to return size_t (number of bytes written).
 2012-01-28 12:25:47 +09:00
Andrew Tridgell 621f21e4f5 DCM: added matrix_reset() method 2011-12-13 21:32:50 +11:00
Jason Short 17fbbb4e7b Access to _clamp val. May want to make a private member and write accessor. 2011-12-03 17:57:12 -08:00
Doug Weibel d4fff166cf Add an accessor for the DCM drift correction integrator to monitor performance 
Also made the get_health accessor an inline function.
 2011-11-05 09:02:23 -06:00
Andrew Tridgell d96fbf8acf DCM: re-work the DCM to use the new IMU/ADC features 
this gives us higher resolution DCM calculations, with much more
accurate timing of the update delta time.
 2011-09-17 14:58:02 +10:00
Olivier ADLER 7e3983210c Merge branch 'APM_Camera' of https://code.google.com/p/ardupilot-mega/ 
Conflicts:
	ArduPlane/ArduPlane.pde
	libraries/AP_Camera/AP_Camera.h
	libraries/AP_Mount/AP_Mount.cpp
	libraries/AP_Mount/AP_Mount.h
 2011-09-12 00:31:18 +02:00
Amilcar Lucas b8832fe9ab Use G_RC_AUX macro to simplify accessing the auxiliary servos 2011-09-12 00:02:47 +02:00
Jason Short e8fcf72966 Added a state machine intended to run at 250hz to the DCM. Spread load of DCM out to lower CPU. 2011-09-11 11:03:55 -07:00
jasonshort ce7dc48026 added ki_Yaw private variable and accessors. 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@2778 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2011-07-08 03:57:12 +00:00
jasonshort db0e5760a4 removed redundant FP calcs for speed up. 
added ability to alternate normalization and drift correction. Not fully implemented, needs further testing.


git-svn-id: https://arducopter.googlecode.com/svn/trunk@2691 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2011-06-26 22:54:08 +00:00
jasonshort b07c32acd0 Added dynamic setting of kp_rollpitch, ki_rollpitch, kp_yaw. 
Added three constants for kp_rollpitch, (high, med -default, low)
Functionally equivalent to prior version.

git-svn-id: https://arducopter.googlecode.com/svn/trunk@2550 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2011-06-12 23:49:01 +00:00
DrZiplok d257e12dc0 Re-order initialisers to suppress warnings 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@2072 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2011-05-02 05:55:59 +00:00
james.goppert a840314b97 APO merge. 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1935 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2011-05-01 02:05:17 +00:00
deweibel@gmail.com 967130ed7e Add method definition for set_centripetal() 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1756 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2011-03-08 01:47:43 +00:00
deweibel@gmail.com 0642e1144d Fix imu_health metric 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1728 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2011-02-25 20:09:00 +00:00
DrZiplok@gmail.com ad13b691de DCM needs a reference to a pointer so that we can change the GPS under it during init. 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1662 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2011-02-16 07:54:48 +00:00
DrZiplok@gmail.com d5ffec8119 Update for changes to AP_IMU 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1343 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2010-12-28 23:41:26 +00:00
deweibel 1da23bc3c0 Fix bug in transposed DCM matrix accessor 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1134 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2010-12-14 18:39:02 +00:00
jasonshort 7945937874 added ability to get the transpose of the DCM 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1116 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2010-12-13 04:01:26 +00:00
james.goppert 21634dad19 Added AP_DCM_HIL class. 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1103 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2010-12-10 10:17:27 +00:00
jasonshort 2f2aaa88fd Added dynamic setting of compass 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1010 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2010-12-04 06:24:21 +00:00
james.goppert 110685f880 Updated DCM library. 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@996 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2010-12-02 05:13:35 +00:00
jasonshort 93206020cb Moved Health to DCM, Centripetal correct 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@988 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2010-12-01 22:52:11 +00:00
jasonshort 275624358d boolean to disable centrifugal correction. 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@987 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2010-12-01 19:53:40 +00:00
jasonshort d209f3d59e update - See ArducopterMega in Branch for implementation details 
git-svn-id: https://arducopter.googlecode.com/svn/trunk@986 f9c3cf11-9bcb-44bc-f272-b75c42450872
 2010-12-01 07:58:04 +00:00