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1303 Commits

Author SHA1 Message Date
Andrew Tridgell d0a6359b37 Compass: use constructor to set initial values for _learn and _use_for_yaw 
this ensures they are set if you have MAG_ENABLE==0
 2012-02-25 17:36:31 +11:00
Andrew Tridgell 900388a85a DCM: disable compass null offsets when setting initial yaw 
we need to ensure the compass null offsets code doesn't see a sudden
yaw change, or it will change the offsets by a large amount very
suddenly
 2012-02-25 16:02:24 +11:00
Andrew Tridgell f59297d7a7 Compass: catch the case of a user enabling a compass mid-flight 
if a compass has not been initialised at startup we can't enable it
mid-flight, as we don't have the orientation
 2012-02-25 14:51:09 +11:00
Andrew Tridgell eb71b26d3f DCM: use the new use_for_yaw() compass method 2012-02-25 14:51:09 +11:00
Andrew Tridgell 664622523d Compass: added COMPASS_LEARN and COMPASS_USE parameters 
these allow you to control if the compass should be used for yaw and
if it should learn its offsets. This is useful for locking in compass
offsets once they are confirmed to be good, and for learning offsets
without using them in flights.

The default is to behave the same as previously, which is
COMPASS_LEARN=1 and COMPASS_USE=1
 2012-02-25 14:51:08 +11:00
Andrew Tridgell f10097a6d5 AP_Param: added some comments on AP_Vector3f handling 2012-02-25 11:37:20 +11:00
Andrew Tridgell 5e2fbdb6cf DCM: don't reset _have_initial_yaw for GPS heading unless very slow 
wait till we reach 1m/s before we reset _have_initial_yaw. This
prevents us continually resetting the DCM matrix if our ground speed
is close to 3m/s.
 2012-02-25 11:37:20 +11:00
Andrew Tridgell 2e9105c68a AP_Param: added special handling for Vector3f 
We would like to be able to use Vector3f as a parameter while exposing
the individual elements of the vector as MAVLink parameters. This
change to AP_Param makes that possible, by giving AP_Vector3f a dual
personality
 2012-02-25 11:37:20 +11:00
Andrew Tridgell d6bfceef7c SITL: added -C option to desktop mode 
this allows running APM to stdout, which is useful for test sketches
 2012-02-25 11:37:20 +11:00
Andrew Tridgell 54aa8297af libs: removed unused library GPS_IMU 2012-02-25 11:37:20 +11:00
Andrew Tridgell 185ab5aea9 libs: removed unusued library GCS_SIMPLE 2012-02-25 11:37:20 +11:00
Andrew Tridgell 55e33c3359 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 ab8cc3d478 DCM: use rotation_matrix_from_euler() to calculate initial yaw 
When we first get a compass reading or we first start motion we need
to setup the DCM matrix with the right yaw. This uses
rotation_matrix_from_euler() to get a DCM matrix corresponding to our
current roll/pitch, but with the correct yaw
 2012-02-25 11:37:20 +11:00
Andrew Tridgell ddeda1c367 DCM: use rotation_matrix_from_euler() in matrix reset 
this makes the code a bit easier to read
 2012-02-24 11:54:11 +11:00
Andrew Tridgell 06f37aad75 DCM: use calculate_euler_angles() to get eulers from DCM 
this makes the code a bit easier to understand
 2012-02-24 11:52:55 +11:00
Andrew Tridgell 16ed8bc8f6 AP_Math: added rotmat <-> euler functions 
these will make the dcm matrix manipulation easier to understand
 2012-02-24 11:52:55 +11:00
Andrew Tridgell c354879f1f Compass: ensure we don't produce NAN values for compass heading 
this leaves the previous heading values alone if we are at a pitch of
exactly 90 or -90, at which point we can't compute a meaningful
heading
 2012-02-24 11:52:55 +11:00
Andrew Tridgell 17d16bc8c6 AP_Math: added safe_sqrt() function 
this function will never return NAN. It will return zero for negative
numbers.
 2012-02-24 11:52:55 +11:00
Andrew Tridgell bad653f230 DCM: tidy up the nan checking in DCM 
use is_nan() on the matrix rather than just on c.x, and add
safe_asin() to the (unused) OUTPUTMODE==2 code.
 2012-02-24 11:52:55 +11:00
Andrew Tridgell c8e6d03c67 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 502fbf6e17 AP_Math: added a safe_asin() function 
this adds range checking to asin()
 2012-02-24 11:52:55 +11:00
Andrew Tridgell 17170da96e AP_Math: added is_nan() methods to vector3f and matrix3f 2012-02-24 11:52:55 +11:00
Jason Short b094f6ce52 added set integrator 2012-02-23 09:38:08 -08:00
Andrew Tridgell ef90f336d3 DCM: changed the sense of floating point range comparison 
This allows us to detect NaN, otherwise NaN values were considered 
'in range'
 2012-02-23 11:41:26 +11:00
Andrew Tridgell 57ffd00b69 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 2bb58db3f7 DCM: reset more values on renorm blowup 
when DCM blows up, we need to reset a lot more variables to ensure
that any NaN values don't persist
 2012-02-23 08:16:08 +11:00
Andrew Tridgell 156d98cb9f 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
Andrew Tridgell 53b87229ff AP_Param: added ParamToken type for variable list traversal 2012-02-19 17:05:28 +11:00
Jason Short 1e37a0ec17 added a limit to range output 2012-02-18 21:08:17 -08:00
Randy Mackay 33aa6fe13b Optflow - added reference to FastSerial to resolve compile error on Arduino 1.0. 
also removed reference to DCM (no longer required) and removed some old code.
 2012-02-18 18:09:40 +09:00
Andrew Tridgell 9793d04ed1 SITL: increase the amount of noise in the simulated ADC 
this increases the noise to 2 bits, which actually can have the effect
of improving accuracy, as it leads to better averaging
 2012-02-18 19:27:15 +11:00
Andrew Tridgell d52cb7e574 DCM: only add in centripetal accel if we have GPS lock 
if we don't have a GPS or the GPS doesn't have a good lock then we
can't rely on the ground speed for adjusting the acceleration vector
 2012-02-18 19:27:15 +11:00
Andrew Tridgell baac883eb1 IMU: move _sensor_cal to general IMU class 
this makes it available both in shim and INS subclasses
 2012-02-18 10:51:57 +11:00
Andrew Tridgell 882cd4ea83 AP_Param: moved AP_Vector3f and AP_Matrix3f declarations to AP_Math.h 
this avoids us needing AP_Math.h in every utility sketch and example
 2012-02-18 10:51:57 +11:00
Andrew Tridgell 4b15b63d21 AP_Param: fixed copy-assignment operators for AP_Param vectors 2012-02-18 10:51:57 +11:00
Andrew Tridgell 7f3858cb7f AP_Param: added a set_and_save_ifchanged() method 
this can be used to avoid the scan() in more frequenctly saved
variables, such as the MAVLink stream rates in APM
 2012-02-18 10:51:57 +11:00
Andrew Tridgell 80a6773b8b AP_Param: added an initialised() method 
this will be used by the compass code
 2012-02-18 10:51:57 +11:00
justinbeech 62b104cbfa Found free extra 256 bytes of RAM eliminate _clz use from libgcc 
Believe it or not, changing / 2^31 to >>31 saved 256 bytes in the "d" segment.

The reason is that GCC version prior to 4.3.5 does not have a count_leading_zeros (clz) assembler macro, so it uses a 256 byte lookup table called _clz
The _clz table gets pulled in if you do 64 bit division.
This tiny change is the only place that we do long long division.
Changing to a shift saves 256 bytes of ram.
 2012-02-17 09:46:05 +00:00
Jason Short 24ce02c6a4 made I term return in same pattern as D term 2012-02-16 22:09:22 -08:00
Andrew Tridgell 79d622939a ADC: on channel overflow we should not zero last_ch6_micros 
this happens every 64 seconds because of unused channels on the
ADC. Zeroing this creates a bad delta_t value for the DCM code.
 2012-02-16 17:48:36 +11:00
Jason Short 026e4a6567 change constant to float 44330.0 2012-02-15 09:10:14 -08:00
Michael Oborne 2f81776b0d eedump ap param in perl 2012-02-15 21:31:58 +08:00
Andrew Tridgell a48a118128 SITL: adjust the SITL compass code to have saner z values 2012-02-15 22:34:16 +11:00
Andrew Tridgell 62326c0f72 Compass: enable compass offsets for HIL compass 
this makes the null_offsets algorithm have an effect for the HIL
compass that is used for SITL, which makes for easier testing of
compass calibration
 2012-02-15 22:33:50 +11:00
Andrew Tridgell 048aed5427 fixed dump size 2012-02-15 10:44:09 +11:00
Andrew Tridgell 089db43183 show group_element too 2012-02-15 10:42:21 +11:00
Andrew Tridgell ea6a46fc9b AP_Param: added eeprom_aaparam.c dump utility 2012-02-15 10:41:06 +11:00
Andrew Tridgell 4398171374 SITL: catch floating point errors 
if we get a FPE then log a message and exit
 2012-02-15 08:50:45 +11:00
Andrew Tridgell 245d265c6a DCM: added a SITL_debug() for DCM normalisation errors 
I have seen normalisation errors during simulation runs, but have not
yet tracked down the cause. This log message may help track things
down.
 2012-02-15 08:50:45 +11:00
Andrew Tridgell 601a991a46 added SITL_debug() macro 
this can be used to print a message into the logs in the SITL
simulator. This will be used for critical conditions.
 2012-02-15 08:50:45 +11:00
Andrew Tridgell 085cc00c33 RC_Channel_aux: fixed a uninitialied variable error, and save a bit of stack space 2012-02-15 08:50:45 +11:00
Andrew Tridgell 43c56be70c SITL: add some magnetometer offsets 
this ensures the compass null_offset algorithm has some work to do in
autotest
 2012-02-14 11:26:42 +11:00
Andrew Tridgell f95d7cadc5 fixed SITL GPS heading to be 0..360 2012-02-14 11:26:42 +11:00
Andrew Tridgell 6a42598ade use stdint types in the compass code 2012-02-14 08:35:03 +11:00
Andrew Tridgell be5ffdedbb AP_Param: allow dumping of AP_Vector3f 
this means the 'show' command in the CLI shows the compass offsets now
 2012-02-14 08:34:50 +11:00
Andrew Tridgell d90dc4d893 GPS: change back to 4Hz for MTK GPS 
this will hopefully fix the NO_GPS problems that have been regularly
happening in recent months. I will watch the logs carefully to see if
the problem recurs
 2012-02-13 22:50:20 +11:00
Andrew Tridgell 804332c340 AP_Baro: fixed some signed/unsigned warnings 
and a potential bug on timer wrap
 2012-02-13 21:39:18 +11:00
Andrew Tridgell 74bbc72b11 move AP_Var code and example into libraries/AP_Var 
you can use AP_Var by defining USE_AP_VAR
 2012-02-13 16:22:53 +11:00
Andrew Tridgell 23ed5c2cee fixed imax load/save in PID 2012-02-13 16:22:53 +11:00
Andrew Tridgell 37cabb4cfa fixed dead zone load/save 2012-02-13 16:22:53 +11:00
Andrew Tridgell 150a67c262 fixed PID initialisation 2012-02-13 16:22:53 +11:00
Andrew Tridgell 47807ec68d RC_Channel_aux: catch invalid function settings 
a bad function setting would overwrite the heap
 2012-02-13 16:22:53 +11:00
Andrew Tridgell 1f05e7dafb fixed types in GPS detect code 
using int everywhere is wasteful and non-portable
 2012-02-13 16:22:53 +11:00
Andrew Tridgell d55a0c3a71 added AP_Param::show_all() 
this moves the logic into common code
 2012-02-13 16:22:52 +11:00
Andrew Tridgell 9175ebe33a change back to 256 max variables in _var_info[] 
this keeps the header to 24 bits, and allows the token to be 16
bits. If we need more variables we can put them in a nested group.
 2012-02-13 16:22:52 +11:00
Andrew Tridgell 9c5a5473ab added indexes to group info structures 2012-02-13 16:22:52 +11:00
Andrew Tridgell f2a6a31645 AP_Param: added group idx, and change packing of header elements 
adding a idx element to the GroupInfo will make it less likely that a
developer will change the IDs of group elements, and make it easier to
see that these IDs are important for identifying a variable in EEPROM

The header packing has changed to make it 24 bits on all platforms,
which allows us to lower the EEPROM variable max size to 1024 bytes
again
 2012-02-13 16:22:52 +11:00
Andrew Tridgell 678a1df3be fixed support for AP_PARAM_SPARE 
spare group elements are needed if we remove a group parameter
 2012-02-13 16:22:52 +11:00
Andrew Tridgell accaf9bb30 fixed build on arduino 1.0 2012-02-13 16:22:52 +11:00
Andrew Tridgell db96303fa0 convert APM_PI library to AP_Param 2012-02-13 16:22:52 +11:00
Andrew Tridgell 452749149f convert AC_PID library to AP_Param 2012-02-13 16:22:52 +11:00
Andrew Tridgell f9eed9bd9e fixed missing return in D value 2012-02-13 16:22:52 +11:00
Andrew Tridgell f760b3c717 restore _fCut that was lost in AP_Param development 2012-02-13 16:22:51 +11:00
Andrew Tridgell 84aef17bb0 fixed initialisation of RC_Channel class 2012-02-13 16:22:51 +11:00
Andrew Tridgell 5418302b38 AP_Param: fixed desktop build 2012-02-13 16:22:51 +11:00
Andrew Tridgell d658bc6f9d desktop: more progmem string functions 2012-02-13 16:22:51 +11:00
Andrew Tridgell 95e107ab75 AP_Param: added generic cast_to_float 2012-02-13 16:22:51 +11:00
Andrew Tridgell 9509c69f42 AP_Param: disable debug ready for production 2012-02-13 16:22:51 +11:00
Andrew Tridgell 5d03f13aa5 AP_Param: make ptype in first() and next() optional 2012-02-13 16:22:51 +11:00
Andrew Tridgell e01af5885f adapt Mavlink_compat.h to AP_Param 2012-02-13 16:22:51 +11:00
Andrew Tridgell bf4a77da81 convert libraries to new typesafe macros 2012-02-13 16:22:51 +11:00
Andrew Tridgell e8c4ecf9fa added nested group support and validation 2012-02-13 16:22:51 +11:00
Andrew Tridgell 94a86204ee added size of Vector6f 2012-02-13 16:22:51 +11:00
Andrew Tridgell 12dac42174 modify RC_Channel for AP_Param 2012-02-13 16:22:51 +11:00
Andrew Tridgell e5a0074312 modify the PID library for AP_Param 2012-02-13 16:22:51 +11:00
Andrew Tridgell e5f3864f81 modify the IMU code for AP_Param 2012-02-13 16:22:51 +11:00
Andrew Tridgell 8c58d95187 modify the compass code for AP_Param 2012-02-13 16:22:51 +11:00
Andrew Tridgell 497a400841 hacks to get AP_Param to compile 2012-02-13 16:22:50 +11:00
Andrew Tridgell 5b842a447f new AP_Param subsystem 2012-02-13 16:22:50 +11:00
justinbeech 69f1613f2c Uncommented cold temp compensation after testing. Fixed read throttle so read rate ends up nailing 100hz, not 90hz. minor commenting improvements. 2012-02-13 00:00:06 +00:00
analoguedevices 0ea6ecf8d1 Removed outdated comment: 
"	// deadzone moved to
		//control_in = (abs(control_in) < _dead_zone) ? 0 : control_in;"
 2012-02-11 16:51:02 +00:00
Michael Oborne 8ec192cf45 fix uint > int issue - for hil 2012-02-11 11:35:59 +08:00
Pat Hickey 83326a9d62 APM_RC_APM2: Add support for CH_10 and CH_11 
* CH_10 is on APM2 pin A10 (based on A1..A8 convention)
* CH_11 is on APM2 pin A11

* Only the code in enable_out, disable_out, and OutputCh needed to change.

* CH_10 and CH_11 always have an output period of 20ms (50Hz).
 2012-02-06 22:11:01 -08:00
Randy Mackay 6877b8b3d6 AC_PID Library - added example sketch 2012-02-05 17:35:15 +09:00
Randy Mackay 90b39609c6 APM_PerfMon - removed because it's too big to use with our limited memory now anyway! I have a backup in case we need to resurrect it in the future. 2012-02-05 11:11:59 +09:00
Jason Short af79eb273f Added D term to APM_PI - need to refactor this as a parent class and two child classes to save code space, remove dupes 2012-01-28 21:21:43 -08:00
Randy Mackay 9c26e2369e Arduino 1.0 - GPS_IMU - small fix to make it compile. Does anyone use this lib?! 2012-01-28 17:56:56 +09:00
Randy Mackay 8533aaf5d9 AP_PID, AP_RC_Channel, FastSerial - small changes to make example sketches compile again 2012-01-28 17:54:20 +09:00
Randy Mackay b7ce7bfe18 Arduino 1.0 - small fix to make AP_Baro_MS5611_test.pde compile under Arduino 1.0 2012-01-28 13:21:35 +09:00
Randy Mackay cf25bbfa74 AP_ADC library - tiny fix to make example sketch work after some changes to AP_PeriodicProcess library 2012-01-28 13:12:19 +09:00