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1970 Commits

Author SHA1 Message Date
Jonathan Challinger 9cd98e79dd AHRS: normalise GA_b before computing error vector only if too large 
When GA_b is small the direction of the vector is unreliable, so
normalising can exacerbate the error in the direction
 2012-07-23 17:16:50 +10:00
Andrew Tridgell 175b6d2606 AP_AnalogSource: fixed reporting of VCC 
the VCC pin number should not be converted
 2012-07-21 19:49:24 +10:00
Andrew Tridgell 5f5ab9c07c AHRS: if we don't have gps correction enabled, zero the yaw correction 2012-07-20 17:21:04 +10:00
Andrew Tridgell c937738732 AHRS: allow the gps/accelerometers to control yaw when rolled 
this solves a problem with yaw estimation when at high roll angles,
when the compass code becomes ineffective
 2012-07-20 11:50:04 +10:00
Andrew Tridgell 151a50b6af MAVLink: imported updated generated mavlink C code 
no functionality changes
 2012-07-20 11:50:03 +10:00
Jason Short c9d3ab5413 Oilpan ADC parameters added 
including a function that configures each Accel Axis
Defaults matching old behavior
Added param group
 2012-07-18 22:57:11 -07:00
Jason Short 148da2e4a0 Lead Filter: simplified calculation 2012-07-18 22:57:10 -07:00
Andrew Tridgell 819b6459b2 GPS-UBlox: removed duplicate config messages 
these were left over from debugging
 2012-07-19 15:23:15 +10:00
Amilcar Lucas 3de23220ed RC_Channel parameters: Fix a typo 2012-07-18 22:39:49 +02:00
Amilcar Lucas 22d2f9ea15 Support up to 7 aux servo outputs 2012-07-18 21:58:22 +02:00
rmackay9 e61cf0e1f9 AP_Mount: added set_manual_rc_channel and set_manual_rc_channel_function to allow input of pitch, roll and yaw controls from a regular RC_Channel (i.e. not RC_Channel_aux) 
For now, angles red in are always of the range -45 deg ~ 45 deg which is consistent with the existing arducopter implementation but should be improved to scale the pilot's input to the mount's actual range.
 2012-07-18 23:20:05 +09:00
Amilcar Lucas 461098b289 Replace long with int32_t 2012-07-18 02:12:31 +02:00
Amilcar Lucas 724c5f6490 Use ascending order in the values 2012-07-18 02:11:49 +02:00
Amilcar Lucas 1da0ce20ce Improve parameter documentation, it still does not work, but is an improvement. 
I just do not understand why these parameters do not appear in Mission planner :(
 2012-07-17 23:32:30 +02:00
Michael Oborne 9e4d118fdb Airspeed Library - fix param names. 
The Group definition give the start of the param name.
This way we can maintain multiple instances if required of the same library as options.
 2012-07-16 21:48:47 +08:00
Andrew Tridgell feb456de56 Airspeed: Added AP_Airspeed sensor library 
this will allow an airspeed sensor object to be passed to AHRS for
dead reckoning
 2012-07-16 11:21:20 +10:00
rmackay9 acef75319c AP_MotorsMatrix: small bug fix to limit checking on remove_motor call. Fix thanks to Michael Peschel! 2012-07-16 00:38:58 +09:00
rmackay9 669ffb5ef8 RC_Channel_aux: added enable_out method to help stop servos from moving before the mount has initialised. 
changed parameter names of "update_aux_servo_function" to make it more clear that any 4 servos can be passed in (not just servos 5~8).
Also allowed NULL servos to be passed in as parameters because we only need 3 in ArduCopter.
 2012-07-15 16:28:53 +09:00
rmackay9 5616b1769b AP_Camera: changed "int" to "int16_t" and "long" to "int32_t" here and there. 2012-07-15 16:26:12 +09:00
Andreas M. Antonopoulos c73f7ef3ab AP_Limits library, provides modular "limits" such as altitude and geo-fencing. 2012-07-14 19:26:17 -07:00
Michael Oborne a469682b7b fix param config names 2012-07-14 15:34:15 +08:00
Robert Lefebvre ed235a3924 Change to prevent Tricopter servos from going hard-over during Disarmed state. 
Believe this was an oversight when the change to AP_Motors went in.
 2012-07-13 23:12:26 -04:00
Robert Lefebvre 8ce9aae2f7 Instituting Yaw Differential on Multirotors. Intent is to stop "rise on yaw input". 
Since motors with increasing speed due to yaw input seem to generate more thrust that motors that slow lose thrust, thus net thrust goes up, causing copter to climb.
Values are a guesstimate, proven out by test flying.  This could probably become a parameter.
 2012-07-13 22:59:28 -04:00
Andreas M. Antonopoulos d4a0cb5db1 Added Michael Pursifull's Maxsonar HRLV model support 2012-07-11 18:46:47 -07:00
rmackay9 6f8d0a02a4 AP_Camera: moved seme constructor initialisers around to remove compile warnings 2012-07-12 09:33:22 +09:00
rmackay9 4dd4c95d5c AP_AnalogSource_Arduino: fix to allow analog port to be read to be specified as a "channel" (i.e. A0) 
Also fixed example range finder sketch to work with interrupt enabled AP_AnalogSource_Arduino class
 2012-07-11 21:19:17 +09:00
Amilcar Lucas cc02d85cdf AP_Mount: add support for non-spring-loaded joysticks 2012-07-11 00:07:33 +02:00
Amilcar Lucas 9a41cbffdf RC_Channel: improve parameter documentation 2012-07-11 00:07:10 +02:00
Amilcar Lucas 46d20c2d6b Remove unused function, remove unnecessary angle wrapping. 2012-07-11 00:06:45 +02:00
Amilcar Lucas bccb07cbd0 Allow mount control when no AHRS exists 
Allow mount control on non stabilized axes
 2012-07-11 00:06:26 +02:00
Andrew Tridgell a72f6acef6 AP_Math: added get_distance_cm() to return in centimeters 2012-07-11 07:49:05 +10:00
Andrew Tridgell 165604a55c AHRS: fixed HIL build 2012-07-10 18:02:05 +10:00
Andrew Tridgell 0f9fb2c64b AHRS: added AHRS_GPS_GAIN parameter 
this allows control of how much GPS velocity information is used in
doing centripetal correction in DCM
 2012-07-10 16:22:48 +10:00
Andrew Tridgell e1725e9ea5 AP_Param: added some docs on the eeprom header format 2012-07-10 14:03:49 +10:00
Craig Elder 6d3fdfc03a DataFlash: The current method for checking if chip erase worked is producing false positives. We are forcing the block erase until we have a deterministic test method. 2012-07-09 15:23:35 -07:00
Amilcar Lucas af338939be RC_Channel: Improve documentation 2012-07-07 21:57:30 +02:00
Amilcar Lucas 46552b4222 AP_Mount: Fix radians/degrees scaling regressions 
Rename calculate() into stabilize()
Implement MAV_MOUNT_MODE_RC_TARGETING initialization
Document to make sure this radians/degrees mess up does not happen again
 2012-07-07 21:56:56 +02:00
Andrew Tridgell d755fedc26 AnalogSource: prevent a division by zero on zero ADC data 2012-07-06 19:59:18 +10:00
Andrew Tridgell f6d7d1bc59 APM: changed PID library to do automatic deltat calculation 
this fixes a problem with the HDNG2RLL PID, which was using the wrong
time base and prevents similar bugs from happening in the future
 2012-07-06 19:59:18 +10:00
Andrew Tridgell f501503eb0 AP_Baro: improved barometer averaging 
this changes the barometer calculations to floating point. On a MS5611
this is actually about twice as fast as the previous 64 bit
calculations, but gains us more accuracy as we are able to take
advantage of sub-bit precision when we average over 8 samples.
 2012-07-06 15:11:30 +10:00
Andrew Tridgell 520d762382 Filter: split the DerivativeFilter steps into update() and slope() 
this allows us to apply new data at a different rate than we calculate
the slope.
 2012-07-06 15:11:30 +10:00
Andrew Tridgell 3c7e521f70 AP_Baro: update MS5611 test to use baro library altitude 2012-07-06 15:11:30 +10:00
Andrew Tridgell 302696951a AHRS: make the yaw independent drift correction optional and disable 
the new correction algorithm copes poorly with gyro drift, leading to
signification attitude errors in the face of drift
 2012-07-06 15:11:30 +10:00
Andrew Tridgell 8c5ef3e60f AHRS: only enable barometer for AHRS if it is smooth enough 
if we used less than 5 samples to compute the pressure then don't use
it for climb rate
 2012-07-05 16:29:21 +10:00
Andrew Tridgell ec0995eea1 SITL: lower baro noise a bit 2012-07-05 16:29:21 +10:00
Andrew Tridgell 6534dab719 Filter: fixed DerivativeFilter example build 2012-07-05 16:29:21 +10:00
Andrew Tridgell d29b6ce0a8 SITL: run the HIL barometer at 80Hz to match APM2 2012-07-05 16:29:21 +10:00
Andrew Tridgell 209136386b AP_Baro: added get_pressure_samples() interface 
this returns how many samples were used to calculate the last pressure
 2012-07-05 16:29:21 +10:00
Andrew Tridgell 1a42b10255 Filter: fixed typo in 9 point DerivativeFilter 2012-07-05 16:29:20 +10:00
Andrew Tridgell 185c6e5b32 AP_Baro: change to a 7 point DerivativeFilter for climb rate 2012-07-05 13:00:47 +10:00
Andrew Tridgell 75470dc912 Filter: cope with non-uniform time steps in the DerivativeFilter 
this helps with the barometer a lot, as the timing is quite variable
 2012-07-05 13:00:47 +10:00
Andrew Tridgell f03ba86d9d SITL: add some minimal noise when motors are off 
this actually improves the gyro calibration
 2012-07-05 13:00:46 +10:00
Andrew Tridgell 60caaa4b04 MAVLink: remove MAVLink 0.9 protocol support 
this simplifies the code a lot. We're not going back to 1.0
 2012-07-05 13:00:46 +10:00
Andrew Tridgell 2cd6da2539 AHRS: only use GPS for yaw when compass is not being used 
this avoids having two competing controllers
 2012-07-05 13:00:46 +10:00
Andrew Tridgell adfa97b6f8 AHRS: enable barometer for vertical velocity 
this re-enables the barometer for vertical velocity information
for drift correction, now that we have a better filter
on the climb rate
 2012-07-05 13:00:46 +10:00
Andrew Tridgell f9fc7aafe7 AP_Baro: use DerivativeFilter in barometer climb rate 2012-07-05 13:00:46 +10:00
Andrew Tridgell f19e5a6273 Filter: added DerivativeFilter implementation 
this adds a DerivativeFilter implementation of up to 10 points
 2012-07-05 13:00:46 +10:00
Andrew Tridgell 9f8703274c AP_Baro: show climb rate in baro test sketch 2012-07-05 13:00:45 +10:00
rmackay9 b5f47f5e63 AP_Motors: clarified some doxygen descriptions for TradHeli 2012-07-05 08:46:50 +09:00
Amilcar Lucas 0febf76d9d Document++ 2012-07-05 00:33:46 +02:00
Amilcar Lucas e9c72822dc Remove unused function 2012-07-05 00:33:10 +02:00
Andrew Tridgell c35a2e999b SITL: added SIM_GPS_DELAY parameter 
this allows a delay to be added to the gps data to test the impact on
AHRS/DCM
 2012-07-04 21:05:22 +10:00
rmackay9 faeda3713e AP_AHRS: removed DCM_test example sketch 
No longer required because it doesn't compile and is redundant anyway because the AP_AHRS_DCM class is tested in the AHRS_Test example sketch.
 2012-07-04 18:22:51 +09:00
Andrew Tridgell 3849ca8b5c AHRS: make DCM drift correction not rely on accurate yaw 
this uses a new formulation of the GPS based drift correction from
Bill Premerlani that rotates the error vector to avoid relying on
accurate yaw. This means we should get accurate roll/pitch correction
even with lots of magnetometer interference

It also makes it possible to fly a multicopter with no compass. It can
even navigate and correct yaw (slowly!)
 2012-07-04 17:00:40 +10:00
Andrew Tridgell 1cd8c54f21 AP_Math: cope with co-located waypoints in location_passed_point() 2012-07-04 14:24:04 +10:00
Andrew Tridgell 468dfe3faa AP_Math: the windows arduino build is missing acosf() 2012-07-04 14:14:58 +10:00
Andrew Tridgell 0bdce404a5 AP_Math: add include of math.h 
this is needed for location.cpp
 2012-07-04 13:59:23 +10:00
Andrew Tridgell be9b9f3e67 DataFlash: fixed SITL build 2012-07-04 13:44:01 +10:00
Andrew Tridgell dd24330645 DataFlash: fallback to BlockErase if ChipErase fails 
The errata on the APM2 dataflash chip says that ChipErase may not work
on some chips
 2012-07-04 12:42:46 +10:00
Andrew Tridgell dd200cba31 Math: added location functions to math library 
these do common calculations on struct Location
 2012-07-04 12:42:46 +10:00
Andrew Tridgell 1314e4f872 AHRS: make P gain on PI roll/pitch controller tunable 
this is to make it easier for Craig and Alan to tune
 2012-07-04 12:42:46 +10:00
Andrew Tridgell 060cbe2030 AP_Mount: removed unused enum 2012-07-03 10:39:34 +10:00
Andrew Tridgell 99b11e4f19 Mount: enable mount control via eeprom parameters 
this enables MNT_* parameter control of the camera mount code. It also
fixes the conversion of calculated angles between degrees and
integers, and fixes stabilised mount control when yaw control is not
available.
 2012-07-03 10:21:01 +10:00
Andrew Tridgell 057eb5e6f6 Baro: average over all pressure/temperature samples on MS5611 
this allows us to use the MS5611 barometer at its full 100Hz sample
rate (80Hz for pressure, 20Hz for temperature). The pressure and
temperature values are averaged between reads without adding any
latency. Previously the driver would throw away values between
readings

This also fixes a race condition in reading from the SPI bus that
could lead to bad values from the barometer
 2012-07-02 13:44:53 +10:00
Andrew Tridgell f70cd71791 Baro: fixed build of MS5611 test code 2012-07-02 13:44:53 +10:00
Andrew Tridgell 769011e947 AnalogSource: added some example code 2012-07-01 15:01:05 +10:00
Andrew Tridgell 1fdcc3e8f0 SITL: added support for new analog source 
removed analogRead() to prevent people using it
 2012-07-01 15:01:05 +10:00
Andrew Tridgell c8befe4536 AnalogSource: make the Arduino AnalogSource interrupt driven 
this fixes several problems with reading analog sources:

 - we were getting poor values because we didn't wait long enough for
   an analog source to settle

 - we wasted a lot of CPU cycles waiting for conversions

 - we were not taking averages over many samples, which we did with
   the old AP_ADC driver on the APM1
 2012-07-01 15:01:05 +10:00
Andrew Tridgell 136c03c3c0 AHRS: include the P terms in get_gyro() 
this makes it more useful for navigation controllers
 2012-06-29 21:54:09 +10:00
Andrew Tridgell acc6adf6e9 MPU6k: removed an unused variable 2012-06-29 21:54:09 +10:00
Andrew Tridgell ed691fc465 SITL: added SITL class for controlling simulation 
this holds mavlink settable parameters for controlling sensor noise
levels
 2012-06-29 15:10:51 +10:00
Andrew Tridgell 16c55c64d4 AHRS: don't add the P terms in _omega 
this can lead feedback via the _P_gain()
 2012-06-29 15:10:51 +10:00
Andrew Tridgell 37fc6c46b9 AHRS: disable barometer for vertical acceleration 
this seems to have been the cause of the 'flips' seen by Marco and
others. Testing by Craig and Alan shows that the flips are gone when
the barometric acceleration is removed.

It looks like a 5 point average filter is not enough to keep the
vertical acceleteration noise low. With high noise in the z axes, the
x and y axes are scaled back when the ge vector is normalised.
 2012-06-28 11:12:49 +10:00
Andrew Tridgell 58c4d458dc AHRS: re-instate new DCM drift correction code 
This reverts commit 078489638d47fbaffde7c51249e36b5a8fc4ef9d.
 2012-06-28 11:09:22 +10:00
Andrew Tridgell fd241692d0 AHRS: revert to the old drift correction algorithm 
we need to work out why Craigs quad flipped today before we enable
this new drift correction
 2012-06-27 18:16:41 +10:00
Andrew Tridgell a6543f1e84 SITL: removed an unused variable 2012-06-27 16:01:50 +10:00
Andrew Tridgell 5bccfbd94c Barometer: fixed airstart for APM 
we need to re-load the ground pressure and temperature from eeprom on
and airstart
 2012-06-27 16:01:50 +10:00
Andrew Tridgell 8e044a560b AHRS: include P term in omega 
thanks to Jon for suggesting this
 2012-06-27 16:01:50 +10:00
Andrew Tridgell 37e2f2ee2c AHRS: implement spin rate limits 
this follows the method that Bill developed in his fastRotations
paper. We've demonstrated that this is indeed needed in APM, as we
were able to produce the 'dizzy' effects in both the ArduPlane and
ArduCopter simulator
 2012-06-27 16:01:50 +10:00
Andrew Tridgell e4a245179c AHRS: cope with copters with no compass 
if a copter doesn't have a compass, we can't use the GPS for gyro
drift correction
 2012-06-27 16:01:50 +10:00
Andrew Tridgell f4faf941e2 GPS: test the more modern MTK16 2012-06-27 16:01:50 +10:00
Andrew Tridgell 27761737ce SITL: fixed GPS heading in simulated UBlox 
longitude scale does not apply to velocity->heading conversions
 2012-06-27 16:01:50 +10:00
Andrew Tridgell b811653800 SITL: changes UBlox simulation to 5Hz 
this matches the real UBlox driver
 2012-06-27 16:01:50 +10:00
Andrew Tridgell e4d28b12e5 Compass: remove the need to call calculate() on the compass object 
the new AHRS code doesn't use calculate() and the compass.heading
attribute. Instead it works on the raw magnetometer vector. This
change removes the internal calculate state from the compass object
and instead adds calculate_heading() for use by older code that
doesn't go via AHRS.

This significantly reduces the calculation involved in compass updates

The null offsets enable/disable code is also removed, as it is not
needed now that compass offsets are not linked to the AHRS state.
 2012-06-27 16:01:50 +10:00
Andrew Tridgell 3a41ad8e7c AHRS: normalize the ge vector in drift correction, and use barometer 
The normalisation ensures the error term scales uniformly with
different accelerations.

The barometer is used for vertical acceleration estimation
 2012-06-27 16:01:50 +10:00
Andrew Tridgell c387edd74c Baro: added get_altitude() and get_climb_rate() interfaces 
this allows the barometer driver to calibrate and return altitude and
climb rate values. This will be used by the AHRS drift correction code
for vertical velocity

The climb rate uses a 5 point average filter
 2012-06-27 16:01:50 +10:00
Andrew Tridgell 06c8763881 Filter: added 5 point average float filter 2012-06-27 16:01:50 +10:00
Jonathan Challinger d230690b7b AHRS: brought DCM more inline with Bill's implementation 
omega_I applied continuously. _ki larger. Stop integrating when _omega.length()>20

The key change was the scaling of ge to ensure the error is not
quadratic
 2012-06-27 16:01:49 +10:00
Andrew Tridgell d4c8041c51 AHRS: first successful version of Bills new drift correction system 
This makes 3 major changes:

 1) fixes the scaling of the yaw drift correction term to fix the time
 constant

 2) don't integrate the mag vector over multiple readings

 3) accumulate omega_I changes over 15 seconds before applying, to try
 to prevent omega_I picking up short term responses
 2012-06-27 16:01:49 +10:00
Andrew Tridgell 4d08f75292 AHRS: update for new _fly_forward flag 2012-06-27 16:01:49 +10:00
Andrew Tridgell 0f5c22bd8e AHRS: implement Bills new drift correction algorithm 
this is an initial implementation of this paper:

  http://gentlenav.googlecode.com/files/RollPitchDriftCompensation.pdf
 2012-06-27 16:01:49 +10:00
Andrew Tridgell 52d77407d4 AHRS: added GPS support to AHRS test 2012-06-27 16:01:49 +10:00
Andrew Tridgell 37db5247cd GPS: added velocity and acceleration components 
used by AHRS for acceleration correction
 2012-06-27 16:01:49 +10:00
Andrew Tridgell fe865bc1dc Math: added comment 2012-06-27 16:01:49 +10:00
Andrew Tridgell c30b0d85a3 Math: moved more template functions to the .cpp files 
save a bit more code space for larger functions
 2012-06-27 16:01:49 +10:00
rmackay9 068fe64b9b ArduCopter HIL: changed calls to setHIL to send in time as a uint32_t (it was a float) 2012-06-26 22:50:17 +09:00
Jason Short 7b9583453b Added a crude Lead Filter. Needs some fine tuning, lag specification, scaling. Works great on 4hz GPS such as Mtek. 2012-06-21 11:14:20 -07:00
Amilcar Lucas 78ccb9d37f Add linebreaks to increase readability. 2012-06-21 00:36:10 +02:00
Amilcar Lucas b072a59843 Improve parameters descriptive text 2012-06-21 00:20:37 +02:00
Amilcar Lucas 594cedd324 Documentation improvements, no functional changes (only comments) 2012-06-17 22:53:54 +02:00
Amilcar Lucas f4e9587aca Move local temp variables to the stack it saves 1952 bytes 
Add function comments
Only use _ on class member variables
Only point to a 3D GPS point if GPS has a fix
Implement MAV_MOUNT_MODE_MAVLINK_TARGETING
 2012-06-17 22:25:51 +02:00
Wingspinner d09ac5899b Added support for channel curves (and expo) to AP_RC_Channel class. Also updated AP_RC_Channel example/test to demonstrate and test new functionality 2012-06-15 08:40:14 +00:00
Wingspinner b699c77323 Added support for channel curves (and expo) to AP_RC_Channel class. Also updated AP_RC_Channel example/test to demonstrate and test new functionality 2012-06-15 08:38:52 +00:00
Andrew Tridgell a851c53de4 GPS: need pgmspace.h for _write_progstr_block() 2012-06-15 16:27:11 +10:00
Andrew Tridgell 70f18289c5 GPS: fixed auto-config of UBlox setup with no UBX messages 
if a UBlox is configured for NMEA only, with no UBX messages at all
then it would never trigger the GPS_AUTO detection. This adds a UBX
config message to the init strings that enables the NAV_SOL message
 2012-06-15 15:53:27 +10:00
Andrew Tridgell 1fe297ab63 FastSerial: added tx_pending() method 
this allows the caller to wait for the tx buffer to drain
 2012-06-15 15:53:27 +10:00
Amilcar Lucas 1906e06b69 Added camera trigger functionality 2012-06-13 21:00:20 +02:00
Amilcar Lucas a32b7c200b Add "3 axis camera stabilization" and "point camera to 3D point" functionality 
Patch by Gregory Fletcher and reviewed by me
 2012-06-13 20:55:19 +02:00
Amilcar Lucas 5ffd489d87 Spellcheck 2012-06-13 20:44:35 +02:00
rmackay9 1e38b0d535 AP_GPS_NMEA: fix from Roberto Navoni to improve NMEA accuracy 2012-06-12 20:27:50 +09:00
Andrew Tridgell f9560ef093 GPS: use the new nav_setting in a couple of the sample sketches 2012-06-10 16:35:13 +10:00
Andrew Tridgell 33a2ad7e07 GPS: add stub settings for nav_setting in the other GPS drivers 
only Ublox supports nav_setting so far
 2012-06-10 16:34:53 +10:00
Andrew Tridgell 514be604a5 GPS: added auto-configuration of UBlox GPS 
the Ublox will now auto-configure for 5Hz with just the messages we
want. It also supports setting the navigation engine type
 2012-06-10 16:34:13 +10:00
Andrew Tridgell 9c1ce9e1c5 FastSerial: avoid buffer re-allocation on re-open if possible 
we commonly re-open serial ports a lot in the AUTO GPS driver
 2012-06-09 07:43:22 +10:00
Andrew Tridgell cf4e56457b SITL: map() is a C++ function, so needs to be in C++ part of the header 
this fixes the ACM build
 2012-06-08 17:09:23 +10:00
Andrew Tridgell cbf477addd GPS: added debug code to the main GPS class 2012-06-08 16:42:03 +10:00
Andrew Tridgell a8bfc5d8e9 GPS: re-open the serial port with a 256 byte serial receive buffer 
this ensures all GPS parsers have a 256 byte buffer available
 2012-06-08 16:42:03 +10:00
Andrew Tridgell 296e651b30 GPS: fixed the UBLOX parser to handle unknown messages 
the parser was broken in several ways:

 1) when it received an unknown message it didn't update the ck_a and ck_b fields, so it
    thought the message had a bad checksum, which meant it got out of protocol sync

 2) the read() method would return false if the last message from the GPS was of an unknown type. 
    So we relied on the last msg always being one that we understand and want

 3) the parser considered any valid UBLOX message to be 'new data', whereas we only actually get 
    a new fix when we get box a new position and velned message

 4) the total message size per update is more than 128 bytes, but the serial port was opened 
    with only a 128 byte buffer, so we got corruption regularly
 2012-06-08 16:42:02 +10:00
Andrew Tridgell 9c2ba2e814 GPS: tidy up the auto gps test 2012-06-08 16:42:02 +10:00
Robert Lefebvre 238a1ced2c TradHeli adding ramp up time to Ch8 Throttle Pass-through. 2012-06-07 22:55:47 -04:00
Robert Lefebvre df17ff3bc1 AP_MotorsHeli Syntax correction. 2012-06-04 15:53:07 -04:00
Andrew Tridgell 25c17a5425 re-enable the AP_Mount build 2012-06-04 19:32:11 +10:00
Andrew Tridgell 0f0cbce22f GPS: fixed a race condition in the ublox driver 
the status update comes as a separate message from the lat/lon
 2012-06-04 14:47:58 +10:00
Andrew Tridgell 012fc35314 mavlink: fixed build with uart resend 2012-06-04 13:45:55 +10:00
Andrew Tridgell b6467cb1fa MAVLink: updates to mavlink headers to fix mavlink 1.0 issues 2012-06-04 13:34:07 +10:00
Andrew Tridgell d8919731ee Mavlink: fixed library build for MAVLink 1.0 2012-06-04 13:14:52 +10:00
Andrew Tridgell ec1abbf987 SITL: fixed SITL build with mavlink10 2012-06-04 13:14:52 +10:00
Andrew Tridgell 60f8d09506 mavlink10: fixed MAV_VAR -> MAVLINK_TYPE 2012-06-04 13:14:51 +10:00
Andrew Tridgell bccfb08c55 MAVLink: updated to latest upstream mavlink 
this includes no significant changes
 2012-06-04 13:14:51 +10:00
Jason Short 73e23aab2a GPS time set to unsigned int32 2012-06-03 11:13:50 -07:00
rmackay9 5c9dc00ae2 AP_Baro: fixed comment to clarify that every-other call updates temperature or pressure 2012-06-03 17:31:17 +09:00
rmackay9 dcdeae412e ArduCopter: Another attempt at fixing the lat/lon printing bug in which small negative lattitudes or longitudes were appearing as positives. 
Fixed in both ArduCopter Log.pde and the GPS Auto test sketch
 2012-06-03 16:58:19 +09:00
rmackay9 173ae33627 ArduCopter Desktop Build: added definition of "map" to wiring.h and included WMath.cpp to fix SITL build failures. 
All real work on this issue done by Michael Oborne.
 2012-06-02 17:46:00 +09:00
rmackay9 c82a403b88 AP_MotorsHeli: Added reference to "Arduino.h" to allow autotest builder to work. 
Moved around initialisation of parmeters in AP_MotorHeli object to remove compiler warnings.
 2012-06-02 16:13:23 +09:00
rmackay9 c3b1a79f6a RC_Channel library: change all "int" types to "int16_t". 
Fixes SITL compile error due to type mismatch of set_pwm between .h and .cpp file (this only occurs because on the SITL, "int" is actually "int32_t"
 2012-06-02 14:20:58 +09:00
rmackay9 d9f124afbb RC_Channel.pde: fixed compile errors so that it actually works! 2012-06-02 14:00:44 +09:00
rmackay9 2a216ce900 ArduCopter: fixed print_latlon bug in which it would print negative lat/lon numbers incorrectly (i.e. -1234567890 would be printed as -124.xxx). 2012-06-02 12:51:12 +09:00
Jason Short c2d14a5cad RC_Channel fix for throttle output. 
throttle was outputting incorrectly and allowing the user to max out the throttle leaving nothing for attitude control
 2012-05-31 14:59:03 -07:00
Jason Short 0adb5cb396 Issue 416: RC_Channel – Fix to make dead_zones still output 0 2012-05-31 12:05:47 -07:00
Jason Short 1c690b44de removed never used filter, and fixed a constrain that could make range calcs go bad 2012-05-31 11:45:07 -07:00
Jason Short 862b374d19 Channel rage fix - low output was always 0 vs _low 2012-05-31 11:31:48 -07:00
Robert Lefebvre 5f058fb9b2 TradHeli: Incorporating Ext ESC Control 2012-05-30 21:50:25 -04:00
Robert Lefebvre 56335e81e4 Fix TradHeli Collective Yaw Effect bug. 2012-05-25 15:25:21 -04:00
Andrew Tridgell ddfa06e857 SITL: fixed ChipErase() 
the loop never completed
 2012-05-23 21:15:45 +10:00
Andrew Tridgell 6e444f6b64 SITL: fixed build with new ChipErase() call 2012-05-23 17:33:33 +10:00
Andrew Tridgell fc73fd6531 DataFlash: use ChipErase() instead of PageErase() on all pages 
This makes the DataFlash erase much faster (about 6 seconds instead of
about 60 seconds).

We need to test and ensure the behaviour is equivalent apart from the
speed
 2012-05-22 19:29:02 -07:00
Andrew Tridgell f274df454a DCM: fixed a bug when using GPS for yaw correction 
When using GPS for yaw correction we need to apply the x and y omegaI
corrections from the _omega_I_sum in the period before we get to the
minimum ground speed for GPS yaw correction. Otherwise we get a large
sudden omega_I change on takeoff.
 2012-05-21 12:15:06 +10:00
Andrew Tridgell 9d221b3625 AP_Common: fixed some duplicate product ID warnings 2012-05-17 23:37:32 +10:00
rmackay9 357d6c2d9b ArduCopter: bug fix for reversing tri servo 
Extended AP_MotorsTri class to take in pointer to rc_tail servo (rc_7) and we use this servo's REV parameter to determine whether to reverse the output to the tail servo or not
 2012-05-13 12:36:46 +09:00
Craig Elder 69bf5700cd IMU: expose IMU_PRODUCT_ID as EEPROM Variable 
this will allow us to log the Product ID in tlogs
 2012-05-09 18:30:36 -07:00
Craig Elder 4a1d8b0875 AP_InertialSensor: Return product ID from sensor initialization 
this exposes the product ID to the IMU Layer
 2012-05-09 18:30:36 -07:00
Craig Elder 4c46955612 PRODUCT: Define product IDs for all supported products 2012-05-09 18:30:36 -07:00
Craig Elder ed99940bee MPU6000: Fixed Scaling on Accelerometers Rev C vs Rev D 
Rev C have non standard scaling factor that is 1/2 of the data sheet
Rev D chips conform to the specification
 2012-05-09 18:30:35 -07:00
Chris Anderson 34f5923ef3 fixed typo ("minimum" should have been "maximum") 2012-05-06 15:50:19 -07:00
Andrew Tridgell 2dd655d87d MPU6k: added suspend/resume on init 2012-05-01 12:06:54 +10:00
Andrew Tridgell 88b2139d91 Baro: added suspend/resume on init 2012-05-01 12:06:54 +10:00
Andrew Tridgell d692a932ca ADC: added suspend/resume on init 2012-05-01 12:06:54 +10:00
Andrew Tridgell 534aee17e9 TimerProcess: added suspend_timer()/resume_timer() 
this will be used to avoid races in driver initialisation
 2012-05-01 12:06:54 +10:00
rmackay9 6e1798b104 AP_AHRS: updated default AHRS_YAW_P to 0.2 (was 0.4) 
This reduces the compass's default authority over the yaw direction by half
 2012-04-30 17:29:45 +09:00
Andrew Tridgell ca8bc34c98 MAVLink: re-generated with new pygen 
this moves the enums to make them less order sensitive
 2012-04-30 12:27:30 +10:00
Adam M Rivera 56d3fa1601 Parameters.pde/AP_MotorsHeli: Updated comments to leverage the new value aliases 2012-04-28 20:50:41 -05:00
Andrew Tridgell 4f90e6e844 build: cope with Arduino 1.0 in command line build 
this should autodetect 1.0 versus older builds
 2012-04-27 15:38:42 +10:00
Adam M Rivera 239323eaa4 Parameters.pde/AP_MotorsHeli.cpp: Added comments from Roberts clone. 2012-04-26 18:26:14 -05:00
Adam M Rivera 3309dec205 AP_AHRS_DCM.cpp: Added comments that follow the new parse structure 2012-04-25 12:00:42 -05:00
Andrew Tridgell 89041c6996 sitl: support MAVLink 1.0 builds 2012-04-24 22:24:58 +10:00
Andrew Tridgell d11957718f MAVLink: removed the cpp part of the library 
this was preventing building MAVLink 1.0 with the arduino GUI as we
can't set cpp defines
 2012-04-24 22:24:58 +10:00
Andrew Tridgell eb5bc964d8 MAVLink: one more define for MAVLink 1.0 compat 2012-04-24 19:54:20 +10:00
Andrew Tridgell 0753782c49 MAVLink: re-add the XML message definitions 
these are a very useful reference for the current headers in the code
 2012-04-24 10:57:43 +10:00
Andrew Tridgell 5c067d5a03 MAVLink: imported new mavlink header updates 
this fixes the camera control code which was broken by a previous
import
 2012-04-24 10:57:43 +10:00
Andrew Tridgell e8f8115a8f APM_RC: added OutputCh_current() method 
this allows logging of the actual servo output values. The radio_out
method previously used doesn't take account of the various override
mechanisms available via waypoints
 2012-04-24 10:57:43 +10:00
Andrew Tridgell 2a3af369b6 DCM: buffer omega_I changes over 10 seconds 
this buffers up _omega_I changes in _omega_I_sum over a period of 10
seconds, applying the slope limit only when _omega_I_sum is
transferred to _omega_I.

The result is a huge improvement in the ability of _omega_I to track
gyro drift over the long term.
 2012-04-23 12:13:25 +10:00
Andrew Tridgell f27d85cb8d DCM: drop the 'drop z' method 
the 'drop z' method reduced the impact of noise on omegaI, but it also
made us more sensitive to errors in accelerometer calibration and
scaling, as demonstated by the logs from Gabor here:

  http://diydrones.com/xn/detail/705844:Comment:834373

Simulation testing shows that the other noise suppression methods
applied in the DCM code, in particular the slope limiting on omegaI
the removal of the weighting and the upcoming use of a _omega_I_sum
buffer have reduced the impact of noise enough that we can now safely
include z in the acceleration calculation.
 2012-04-23 12:13:24 +10:00
rmackay9 11a384a7ff AP_Motors - allow tail servo to be reversed. Closes ArduCopter issue #228 2012-04-21 23:07:57 +09:00
rmackay9 c45b124cbe DataFlash_APM2 - moved CS_inactive call (which disables the dataflash) from the beginning to the end of all methods. This means the dataflash does not monopolize the SPI bus. 
Also formatting changes to use tab instead of space. Sorry, should have done this as a separate check-in to the above changes.
 2012-04-21 20:14:45 +09:00
rmackay9 f18ee75b5c AP_OpticalFlow - updated test sketch to allow testing of APM2 version 2012-04-21 20:11:18 +09:00
rmackay9 3075a0c5bd AP_OpticalFlow - added support for optical flow for APM2 2012-04-21 20:10:35 +09:00
rmackay9 7bda35dc28 AP_OpticalFlow - moved most pin definitions into .cpp file 2012-04-21 20:09:15 +09:00
James Goppert 20cdc3a0ac MAVLink update to 1.0.7 2012-04-20 12:31:50 -04:00
Andrew Tridgell 7f8fe97889 GPS: u-center config file for 3DR Ublox 2012-04-20 22:05:30 +10:00
Andrew Tridgell f170790fd8 GPS: fixed auto GPS test 2012-04-20 22:05:30 +10:00
Andrew Tridgell 711814085b GPS: detect new style 3DR UBlox 2012-04-20 22:05:30 +10:00
Andrew Tridgell 08bc7f1a41 GPS: fixed the UBlox test code 2012-04-20 20:57:08 +10:00
James Goppert ba89f39781 Updated MAVLink to 1.0.6 release. 2012-04-19 15:46:29 -04:00
Adam M Rivera b500d9430f AP_AHRS_HIL.h: Fixed HIL build by adding missing public property. 2012-04-16 10:26:14 -05:00
Andrew Tridgell 8e90aeea4e AHRS: added AHRS_YAW_P parameter 
this allows users to change the yaw gain in DCM
 2012-04-16 20:55:13 +10:00
analoguedevices 28833ed1d6 added missing #include 2012-04-09 14:32:54 +00:00
rmackay9 c96dfb2108 AP_AHRS - changed parameter order to remove compiler warning 2012-04-09 17:37:11 +09:00
rmackay9 ef43da9b92 AP_Compass - changed parameter initialisation order to remove compiler warning 2012-04-09 17:37:02 +09:00
Andrew Tridgell 985c967bb9 MAVLink: imported new mavlink headers 
this adds local and remote radio noise levels
 2012-04-08 12:22:17 +10:00
rmackay9 53827f2e92 AP_MotorsMatrix - fixed stability patch issue in which it would not limit a motor's output unless an opposite motor had been defined. This would only have affected Y6 frames. 2012-04-07 12:16:12 +09:00
rmackay9 127a990509 AP_MotorsOcta - V Frame - test order fix spotted by David Wiens 2012-04-07 08:11:28 +09:00
rmackay9 f6e1509d05 AP_Motors - fixed last "shadowing" compiler warning caused by badly named parameter in auto_armed method. 2012-04-05 00:28:04 +09:00
rmackay9 1e20d7de88 AP_MotorsMatrix - fixed another compiler error regarding shadowing a variable. Fixed by removing those the angle and direction arrays which weren't even used 2012-04-05 00:24:56 +09:00
rmackay9 7a8973eaf0 AP_MotorsHeli - fixed compiler warning re move_swash function declared with int parameters in .h file but actually using int16_t in .cpp file. They're the same in arduino but perhaps the build checker is a little more strict that Arduino. 2012-04-05 00:06:33 +09:00
rmackay9 926211f0f0 AP_Motors - fix compiler warning re shadowing a variable caused by badly named parameter in armed function. 
Another compiler warning fixed in AP_MotorsMatrix.cpp caused by declaring "i" twice.
 2012-04-04 23:59:51 +09:00
rmackay9 b71877366e ArduCopter - AP_Motors library - added new library which has few advantages over current code: 
1. it's step towards rearchitecting the current code base ahead of a move to RTOS.
     2. internally it uses a MatrixTable for the Quad, Octa, OctaQuad, Y6 frames.
     3. it implements the missing stability patch for Octa and OctaQuads (still missing for Y6)

Later check-ins will incorporate into the main ArduCopter code.
 2012-04-02 17:26:37 +09:00
Andrew Tridgell 1fd1a55fa6 MAVLink: import change to txbuf as a percentage 2012-04-02 11:18:53 +10:00
Andrew Tridgell 4ddeb82b26 MAVLink: imported new headers, with RADIO packet 2012-04-01 21:44:44 +10:00
Andrew Tridgell 0c445101ff FastSerial: added set_blocking_writes() interface 
this allows us to put a serial port into non-blocking mode, so that
writes that don't fit in the transmit buffer are dropped. This will be
used in flight to prevent stray printf() calls from causing large time
delays in the code
 2012-03-30 17:46:20 +11:00
Andrew Tridgell 22ff8cb197 examples: fixed build of some examples with new AP_Declination code 2012-03-30 14:25:27 +11:00
Andrew Tridgell 504c53f746 Compass: added COMPASS_AUTODEC option 
when this is 1 (which is the default), we will get the declination
automatically via the AP_Declination library

when it is 0 we will use the value configured by the user
 2012-03-30 14:25:27 +11:00
Andrew Tridgell 927834106d AP_Declination: save some more memory by putting the declination keys in progmem 
there was a comment saying this was too slow, but it actually costs
about 30 usec extra, which is trivial given the full auto declination
call costs 680 usec and its only called once per boot
 2012-03-30 14:25:27 +11:00
Andrew Tridgell 70d4280935 AP_Declination: added timing information to declination test 2012-03-30 14:25:27 +11:00
Andrew Tridgell 175352845c AP_Declination: fixed build under SITL 2012-03-30 14:25:27 +11:00
Adam M Rivera ca82350f17 AP_Declination_test: Updated test with better print messages. 2012-03-30 14:25:26 +11:00
Adam M Rivera 01b1e58f7d AP_Declination: Update LUT based on the changes that I made in the LUT generation code. This LUT is the final version that has no truncation. 2012-03-30 14:25:26 +11:00
Adam M Rivera 23f6093f05 AP_Declination: Updated comments to reflect new LUT size. 2012-03-30 14:25:06 +11:00
Adam M Rivera 50791a8b0f AP_Declination: Removed trailing zero deltas as they have no impact on the final value and only take up extra bytes. 2012-03-30 14:21:58 +11:00
Adam M Rivera f35e447927 AP_Declination: Updated compressed lookup value table. Located 9 more failure points due to truncation on the packed LUT. 2012-03-30 14:21:58 +11:00
Adam M Rivera 72b70c394c AP_Declination: Found 7 of the 22 failure points and fixed them. The issue with those 7 was the way I originally packed the value array. The last delta values on some rows were getting truncated. The new number of failures is down to 15 - WIP. 2012-03-30 14:21:58 +11:00
Adam M Rivera 076192db51 AP_Declination: Updated test to run in 5 degree increments. Changed to only print failures and also print total pass vs total fail. 2012-03-30 14:21:58 +11:00
Adam M Rivera 230ca1ddca AP_Declination: Moved check for y index of zero to after the y index is properly transformed. 2012-03-30 14:21:58 +11:00
Adam M Rivera e0fa053c79 AP_Declination: The exception signs unpacking logic was incorrect. I was shifting a 1 value left y%8 which would have needed a the signs to be packed right to left. My packed signs byte was packed left to right (left most being the 0 position) so I needed to reverse the shifting. 2012-03-30 14:21:58 +11:00
Adam M Rivera f66c6e16e4 AP_Declination: In order for the bitwise & operation to work, negative signs need to be represented by 1s instead of 0s. Changed so that negative signs are represented by a 1 in the packed signs array. Updated lookup logic to reflect this change. 2012-03-30 14:21:58 +11:00
Adam M Rivera d88b9e8ffc AP_Declination: Updated packed exception signs array. I had the signs packed incorrectly. 2012-03-30 14:21:57 +11:00
Adam M Rivera 036da88174 AP_Declination: Changed test to run in increments of 10 degrees. 1 was too granular. 2012-03-30 14:21:57 +11:00
Adam M Rivera 580b274bde AP_Declination: Added original array to test sketch. Added loop to validate new compressed array against original in 1 degree steps. 2012-03-30 14:21:57 +11:00
Adam M Rivera efefc3e4f4 AP_Declination: Moved rows with large spikes in delta to their own unsigned exception rows. The signs are in a separate packed array. 2012-03-30 14:21:57 +11:00
Adam M Rivera 0dcc4e8307 AP_Declination: Implemented Delta Encoding and Run-Length Encoding. Added method to traverse the compressed array and return the lookup value based on the same lat_index/lon_index that was used before. 2012-03-30 14:21:57 +11:00
Adam M Rivera 3a849771bc AP_Declination: Changed PROGMEM read function to pgm_read_word_far to support the int16_t datatype. 2012-03-30 14:21:57 +11:00
Adam M Rivera 370e56c00a AP_Declination: Changed datatype to int16_t to support the -90 <-> 90 latitude range. 2012-03-30 14:21:57 +11:00
Adam M Rivera ae257ad42b AP_Declination: Reduced the size of the lookup table to support -75 <-> 70 latitude range. This allows the datatype to remain int8_t. 2012-03-30 14:21:57 +11:00
Andrew Tridgell b549b88e5e AHRS: fixed error_yaw reporting with 2 MAVLink connections 
when a user first connects with USB, and later switches to the
telemetry port without restarting we were getting zero for error_yaw
in the logs, as AHRS.get_error_yaw() was being called twice.

This ensures we give the last value after the counter is reset
 2012-03-29 12:39:53 +11:00
Andrew Tridgell 16deefce31 Compass: fixed a comment 2012-03-29 12:39:53 +11:00
Andrew Tridgell 17290836ef Compass: added some more comments 
explain the algorithm a bit more
 2012-03-29 12:39:53 +11:00
rmackay9 2ce597642e Filter - added FilterWithBuffer typedefs for int32t and uint32 for ease of use 2012-03-28 22:02:52 +09:00
rmackay9 90fcdeadfd AP_OpticalFlow - small bug fix to ensure init attempts to read the product id 3 times before giving up 2012-03-28 22:00:57 +09:00
Andrew Tridgell 10c35e3769 SITL: add magnetic field noise to the simulated compass 2012-03-28 20:55:27 +11:00
Andrew Tridgell f4c1b6a3c6 SITL: ensure we don't run the sitl timer twice 
this caused problems with random()
 2012-03-28 20:55:27 +11:00
Andrew Tridgell b2d6db9479 Compass: implement noise resistant varient of offset learning 
This adds a large amount of noise robustness to the compass offset
learning algorithm, at a cost of 120 bytes of memory. The changes are
based on a long discussion with Bill Premerlani.
 2012-03-28 20:55:27 +11:00
Andrew Tridgell 9b95d2060a ADC: minor fix to the ADC Ch6() code 
we don't need to add count any more, as floating point maths doesn't
need to round up
 2012-03-27 15:37:24 +11:00
Andrew Tridgell a72d4b46b3 Compass: implement Bills new offset nulling algorithm 
this seems to work much better than the old algorithm, converging
faster and more accurately. Even better, it has no linkage to DCM, so
no possibility of nasty feedback effects
 2012-03-27 15:37:24 +11:00
rmackay9 b5dbdab81e APM_RC - moved Force_Out0_Out1, Force_Out2_Out3 and Force_Out6_Out6 to APM_RC parent class because it's already implemented in the APM1 and APM2 child classes anyway 2012-03-25 21:13:31 +09:00
rmackay9 2b2dbf2a7f Filter - added simple LowPassFilter (simple but it's possible to make errors with simple stuff too so might as well have one) 2012-03-25 16:15:25 +09:00
rmackay9 39fd24ed14 Filter - remove obsolete warning from comments re alloc/malloc dangers 2012-03-25 16:14:07 +09:00
rmackay9 2d65ec2874 AP_Baro - change data type size of temperature's average filter to int32_t (was int16_t) 2012-03-24 23:21:11 +09:00
rmackay9 d371862fd2 AP_OpticalFlow - resolved compile error in example sketch (it could not find DCM.h but it's not required anyway) 2012-03-24 14:47:21 +09:00
Andrew Tridgell a6d66dc45b Math: added mul_transpose() operation 
this is equivalent to multiplying by m.transposed(), but is more
efficient
 2012-03-23 16:48:52 +11:00
Andrew Tridgell f4d1295a4b AHRS: fixed build of AHRS example 2012-03-22 23:00:45 +11:00
Andrew Tridgell fe55a76335 Math: moved matrix multiple operations to .cpp file 
this means we only link this in once, rather than for every use of
matrix multiply, which saves us some flash space

We need to be careful not to put large pieces of code in template
headers, as if the operation is used a lot, it costs us a lot of code
space
 2012-03-21 10:43:48 +11:00
Andrew Tridgell 17fbb8ea26 Math: fixed the build of the eulers test in SITL 2012-03-21 10:41:55 +11:00
Andrew Tridgell 90c3d230d9 SITL: improve the simulated compass 
this implements a much more accurate model of a compass using matrix
rotations, instead of trying to calculate components directly
 2012-03-21 10:41:55 +11:00
rmackay9 24a471ff8f AC_PID - added more paranoid checking that imax is positive in constructor, operator() and load_gains methods 2012-03-20 11:51:15 +09:00
Andrew Tridgell 9f4becbacf AHRS: added AHRS specific MAVLink headers 2012-03-19 17:35:20 +11:00
Andrew Tridgell 9e6c18cca4 AHRS: added missing AP_AHRS.h 2012-03-19 17:35:20 +11:00
Andrew Tridgell 4f82134a5e DCM: use the new rotate() method from AP_Math 
this allows us to use a tested and optimised rotation method
 2012-03-19 17:29:02 +11:00
Andrew Tridgell 17f7292fe9 Math: added a test for the rotate() method 2012-03-19 17:29:02 +11:00
Andrew Tridgell c16b353ea7 Math: added rotate() method to Matrix3f 
this is the core method used to update the DCM matrix with a gyro
vector. Moving it to AP_Math allows us to have a test for it
 2012-03-19 17:29:02 +11:00
Andrew Tridgell 31e566475b Math: added zero() and identity() methods to Matrix3f 2012-03-19 17:29:02 +11:00
Andrew Tridgell c53b320e00 Quaternion: change signs in AP_AHRS_Quaternion 
thanks to Justin for the suggestion
 2012-03-19 17:29:02 +11:00
Andrew Tridgell d948a28e7c Math: change signs in quaternion library 
thanks to Justin for the suggestion
 2012-03-19 17:29:02 +11:00
Andrew Tridgell af9ce0cfc9 Math: allow eulers test to build with AP_Declination library 2012-03-19 17:29:02 +11:00
Andrew Tridgell 72a761170b Math: fixed build of eulers test on SITL 2012-03-19 17:29:02 +11:00
Andrew Tridgell 58a68c89d9 Math: added a function to combine standard rotations 
this will allow us to have an overall board rotation plus a per-sensor
rotation
 2012-03-19 17:29:02 +11:00
Andrew Tridgell 8ae0ea7e37 AP_Mount: adapt library for AHRS framework 2012-03-19 17:29:02 +11:00
Andrew Tridgell 79b9be8b1a AHRS: fixup the AHRS test suite for the new framework 2012-03-19 17:29:02 +11:00
Andrew Tridgell f8087d3c67 AHRS: adapt the quaternion library to AHRS 2012-03-19 17:29:02 +11:00
Andrew Tridgell 8dcf82b433 AHRS: adapt the DCM_HIL library to AHRS 2012-03-19 17:29:02 +11:00
Andrew Tridgell d4bb068d5b AHRS: adapt the DCM library to the AHRS framework 2012-03-19 17:29:02 +11:00
Andrew Tridgell 9d75ffeba1 AHRS: rename DCM and Quaternion implementions ready for AHRS class 
this is the first step to creating a general AHRS class for ArduPilot
 2012-03-19 17:29:01 +11:00
Andrew Tridgell 55ed84526a MAVLink: rename DCM message to AHRS 2012-03-19 17:29:01 +11:00
rmackay9 01cc5fe938 AP_Baro - removed unnecessary 2 element average filtering of pressure (there is a 4 or 5 element average filter in arducopter code itself, two places is messy) 
- also removed unused _offset_press variable
 2012-03-18 15:18:05 +09:00
rmackay9 7560242721 AP_Baro - added average filter for temperature to replace broken filter 
- added average filter (for last two values) for raw pressure
        - changed some "long" to int32_t and "unsigned long" to uint32_t
 2012-03-18 01:06:02 +09:00
Michael Oborne bae5f98666 sitl cygwin mods 2012-03-15 08:16:50 +08:00
Andrew Tridgell 00c1c6f108 Quaternion: credit Justin with the initial idea of using Madgwick 
thanks Justin!
 2012-03-13 13:27:45 +11:00
Andrew Tridgell 13dac4a93a DCM: adjust yaw kp constant down to 0.4 
this makes the time constant for compass errors closely match the
timing of the older releases - about 10 seconds for a 1 radian change
in heading
 2012-03-12 17:49:26 +11:00
Andrew Tridgell 7daaadf776 Compass: fixed the order of rotations in the compass driver 
this should fix the massive heading issues that people have been
reporting. Please test!
 2012-03-12 17:33:15 +11:00
Andrew Tridgell c08fd50542 AP_Declination: fixed build of test sketch 2012-03-12 17:33:15 +11:00
Amilcar Lucas 6e9ffb4249 correct small typos in comments 2012-03-11 21:30:09 +01:00
Andrew Tridgell b337441ec5 SITL: added pgm_read_byte_far() 2012-03-11 20:59:47 +11:00
Andrew Tridgell c1b945018b AP_Declination: fixed usage of headers 2012-03-11 20:59:47 +11:00
Adam M Rivera b9be6ed290 AP_Declination: Updated comment. 
Signed-off-by: Andrew Tridgell <tridge@samba.org>
 2012-03-11 20:59:47 +11:00
Adam M Rivera fe8c896d69 AP_Declination: Added method set_initial_location 
This will set the declination based on lat/lon if the user has
not yet saved one to the EEPROM, OR if they have specified via the
config parameter that they want it to overwrite the declination every
3D fix.

Signed-off-by: Andrew Tridgell <tridge@samba.org>
 2012-03-11 20:59:47 +11:00
Adam M Rivera e08b50ee91 AP_Declination: Increased range of supported latitude coordinates. 
Fixed incorrect type usage to save stack space.

Signed-off-by: Andrew Tridgell <tridge@samba.org>
 2012-03-11 20:59:47 +11:00
Adam M Rivera e22da153ec Added AP_Declination test sketch. I will be improving the test sketch soon. 
Signed-off-by: Andrew Tridgell <tridge@samba.org>
 2012-03-11 20:59:47 +11:00
Adam M Rivera d2a07b1603 Added AP_Declination library. It contains the lookup table (lat/lng -> declination) as well as a method that performs the lookup. 
Signed-off-by: Andrew Tridgell <tridge@samba.org>
 2012-03-11 20:59:47 +11:00
Andrew Tridgell d10c4b76ad Compass: removed an incorrect comment 2012-03-11 20:07:38 +11:00
Andrew Tridgell 0da64e98f8 Compass: don't save the orientation to EEPROM 
there is no point in saving this, the value is only configurable at
compile time for now, and is always set
 2012-03-11 15:37:07 +11:00
Andrew Tridgell 0ec9857689 Math: any euler angle with pitch > 90 is invalid 
both DCM and quaternion always return pitch in the range -90 to 90
 2012-03-11 15:37:07 +11:00
Andrew Tridgell 4bf28d499a Quaternion: update for new Quaternion interface 2012-03-11 15:37:07 +11:00
Andrew Tridgell e8f1c5742b DCM: update for new Matrix3f interface 2012-03-11 15:37:07 +11:00
Andrew Tridgell 4d3789d11c AP_Math: update the test suite 2012-03-11 15:37:07 +11:00
Andrew Tridgell 4422486d44 AP_Math: made rotation matrices more C++ 
thanks to Adam for the suggestion
 2012-03-11 15:37:07 +11:00
Andrew Tridgell 5c6368bad3 AP_Math: allow null pointers in Quaternion::to_euler() 
this matches the Matrix3f method
 2012-03-11 15:37:07 +11:00
Andrew Tridgell 16c95236c0 Quaternion: use the new quaternion API 2012-03-11 15:37:07 +11:00
Andrew Tridgell 9f0cb78f08 AP_Math: re-work quaternion functions to be more C++ like 
thanks to Adam for the suggestion!
 2012-03-11 15:37:07 +11:00
Andrew Tridgell 9e30b5e4a5 I2C: fixed cr/lf mess 2012-03-11 15:37:07 +11:00
Andrew Tridgell 6021daf423 OpticalFlow: adapt optical flow library to new rotation system 2012-03-11 15:37:07 +11:00
Andrew Tridgell 2ab3d2c080 OpticalFlow: fixed line endings 
this library was a mixture of dos and unix line endings, which makes
for very messy editing
 2012-03-11 15:37:07 +11:00
Andrew Tridgell cb96dd975f Compass: update the compass driver to use the new vector.rotate() method 2012-03-11 15:37:07 +11:00
Andrew Tridgell 55aa43a70d Math: added a test suite for the new rotation methods 2012-03-11 15:37:07 +11:00
Andrew Tridgell 289c64c0b9 Math: added vector3.rotate() and matrix3.rotation() methods 
these operate on a "enum Rotation" which defines a set of standard
rotations. These are much faster than our previous method, plus use
less memory
 2012-03-11 15:37:07 +11:00
Andrew Tridgell ba8e764349 SITL: lower the noise and drift levels for general autotest usage 2012-03-10 10:34:34 +11:00
Andrew Tridgell b02ca58901 InertialSensor: fixed HIL build 2012-03-10 10:34:34 +11:00
Andrew Tridgell 44ebb20329 MAVLink: bring the v1.0 MAVLink in sync with 0.9 2012-03-10 10:34:34 +11:00
Andrew Tridgell 87c463bcc7 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 eff6778515 Quaternion: use gyro drift value from sensor driver 2012-03-10 10:34:34 +11:00
Andrew Tridgell 3989fe2c2c Quaternion: go back to the full update_MARG() 
the separate drift controller is too erratic on yaw hold to be usable
at the moment
 2012-03-10 10:34:34 +11:00
Andrew Tridgell c8189c80d4 SITL: cleanup the gyro drift calculations 
use units that are more easily understood
 2012-03-10 10:34:34 +11:00
Andrew Tridgell b833190abb Quaternion: make the quaternion test more generic 
works with DCM too
 2012-03-10 10:34:33 +11:00
Andrew Tridgell 2f9af05cfa Quaternion: update to get_gyro_drift() interface 2012-03-10 10:34:33 +11:00
Andrew Tridgell bf16b2926c Quaternion: removed some unused variables 2012-03-10 10:34:33 +11:00
Andrew Tridgell 3b2609c441 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 bcb7196680 IMU: added get_gyro_drift_rate() interface 
this just calls down to the InertialSensor layer
 2012-03-10 10:34:33 +11:00
Andrew Tridgell 9296ac494d AP_InertialSensor: added a get_gyro_drift_rate() interface 
this returns the expected max drift rate for the particular type of
gyro being used
 2012-03-10 10:34:33 +11:00
Andrew Tridgell 882fa1818b DCM: removed the limit on linear acceleration 
we get linear accelerations of more than 1g when turning corners
 2012-03-10 10:34:33 +11:00
Andrew Tridgell 801a442ffb Quaternion: minor tuning 2012-03-10 10:34:33 +11:00
Andrew Tridgell 3344869285 DCM: minor tuning based on testing my quad 2012-03-10 10:34:33 +11:00
Andrew Tridgell dffb435aac SITL: make the yaw match the APM conventions 2012-03-10 10:34:33 +11:00
Andrew Tridgell 2673614f6d SITL: fixed the pwm output on startup 2012-03-10 10:34:33 +11:00
Andrew Tridgell 982712d58f Quaternion: code cleanups and added comments 2012-03-10 10:34:32 +11:00
Andrew Tridgell f405477875 DCM: code cleanup and added more comments 2012-03-10 10:34:32 +11:00
Andrew Tridgell 9dc08b30cd Quaternion: bumb up gyro drift limit to match DCM 2012-03-10 10:34:32 +11:00
Andrew Tridgell f9394f8068 ADC: removed the ADC level accel smoothing 
the quaternion code does a better job of handling this noise than this
filter does
 2012-03-10 10:34:32 +11:00
Andrew Tridgell 8b40c44522 Quaternion: separate out drift correction from main updates 2012-03-10 10:34:32 +11:00
Andrew Tridgell 3e960f8ef9 InertionSensor: update for new Ch6() interface 2012-03-10 10:34:32 +11:00
Andrew Tridgell 919874f2a0 IMU: fixed a warning 2012-03-10 10:34:32 +11:00
Andrew Tridgell 4dff78b9c0 GPS: expose last_fix_time 2012-03-10 10:34:32 +11:00
Andrew Tridgell 6eff9107ea Compass: change last_update to be in microseconds 2012-03-10 10:34:32 +11:00
Andrew Tridgell a0a360f955 ADC: use floats for ADC averaging 
this costs almost nothing and improved accel/gyro calibration
 2012-03-10 10:34:32 +11:00
Andrew Tridgell 045b49c4c4 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 321200ebbc AP_IMU: fixed led flashing in gyro cal 
thanks Pat!
 2012-03-10 10:34:31 +11:00
Andrew Tridgell a92fb67b70 AP_Math: expanded the math test suite 2012-03-10 10:34:31 +11:00
Andrew Tridgell 4d65cda0ea AP_Math: added quaternion->matrix and earth frame routines 
this will be used for 3d acceleration
 2012-03-10 10:34:31 +11:00
Andrew Tridgell 8abbbe5713 AP_Math: better way of handling safe_sqrt() 
better to test the result, than predict it
 2012-03-10 10:34:31 +11:00
Andrew Tridgell ccada2e9c2 SITL: avoid parent pid code on cygwin 
this causes problems on windows
 2012-03-10 10:34:31 +11:00
Andrew Tridgell 3666476bcb SITL: prevent nested timer interrupts 2012-03-10 10:34:31 +11:00
Andrew Tridgell 3b7d78cf02 Quat: test patch for michael 2012-03-10 10:34:31 +11:00
Andrew Tridgell f363f81869 Quaternion: added NaN paranoid checking 
this is for Michael to run
 2012-03-10 10:34:30 +11:00
Andrew Tridgell 1ec4c0777c Math: added comment on quaternion constructor 2012-03-10 10:34:30 +11:00
Andrew Tridgell f5e6dc0757 Math: added is_inf() on vector3f 2012-03-10 10:34:30 +11:00
Andrew Tridgell 066a513758 Quaternion: added more numerical safety in the quaternion code 
prevent infinities from creeping in and prevent large drift changes
 2012-03-10 10:34:30 +11:00
Andrew Tridgell c7d5f06b21 AP_Math: added quaternion helper functions and a test suite 2012-03-10 10:34:30 +11:00
Andrew Tridgell f70dfe440d Quaternion: fix the gyro bias in centripetal and remove smoothing 
the centripetal code needs to take account of the current gyro
bias.

It turned out that the accel and gyro smoothing was causing
significant control lag, and we're better off just letting the
quaternion code handle it via its own smoothing parameters
 2012-03-10 10:34:30 +11:00
Andrew Tridgell 47ddd4dfdd SITL: disable interrupts during register updates 
this may prevent bogus mode channel reads
 2012-03-10 10:34:30 +11:00
Andrew Tridgell 7256652de5 Quaternion: use GPS to correct for linear acceleration 
this gives much better pitch estimates. We should do this with the
airspeed sensor if available.
 2012-03-10 10:34:30 +11:00
Andrew Tridgell c7ef72cf28 Quaternion: don't update if we have a very long deltat 
this can be caused by stopping the system in a debugger
 2012-03-10 10:34:30 +11:00
Andrew Tridgell 6d356b6c6e Compass: fixed last_update time for HIL compass 2012-03-10 10:34:30 +11:00
Andrew Tridgell ebc55bb494 RC: disable interrupts when reading the RC registers 
this prevents getting bogus values which could cause a flight mode
change
 2012-03-10 10:34:30 +11:00
Andrew Tridgell 57f67ca6e3 GPS: added an acceleration estimate to the GPS driver 
This uses the GPS ground speed to estimate acceleration
 2012-03-10 10:34:30 +11:00