Commit Graph

1325 Commits

Author SHA1 Message Date
rmackay9 5026b5c192 AP_DCM - fixed small compiler warning to do with order of parameters in constructor 2012-02-29 22:45:26 +09:00
rmackay9 82f81295a7 RC_Channel - fixed small compiler warning 2012-02-29 22:44:29 +09:00
rmackay9 c444cdb3f4 AP_ADC - removed small compiler warning 2012-02-29 22:43:46 +09:00
Pat Hickey eac8b66385 AP_Param: Make nested group recursion disableable by macro
* Eliminates recursive calls inside AP_Param.
  This is important to Pat @ Galois, but not the project in general.
  Recursion depth on these functions is bounded structurally using
  existing nested group constructors (can't create loops in finite space)
  and checked at init time
2012-02-28 16:28:27 -08:00
rmackay9 2b6a10d18b AP_RangeFinder - changed example sketch to work with new Filter library 2012-02-28 21:02:10 +09:00
rmackay9 033347f8ee Filter - updated example sketch to use modified library 2012-02-28 21:01:35 +09:00
rmackay9 645fda2fb2 Filter - added AverageFilter, removed SumFilter
added FilterWithBuffer to allow removal of malloc/free without losing ability to pass around filter objects
2012-02-28 21:01:11 +09:00
Andrew Tridgell cb52b6c6d9 AP_Param: show numerical value in eeprom dump utility 2012-02-28 09:43:49 +11:00
Andrew Tridgell a432232db9 AP_Param: fixed v.load() on a sub-element of a AP_Vector3f
this isn't actually used at the moment in APM, but we should get it
right in case someone does try to load a single element of a vector
2012-02-28 09:43:49 +11:00
Andrew Tridgell 39797c6f33 SITL: simulate noise on each ADC channel separately
scale the noise based on the period of the motors
2012-02-28 09:43:49 +11:00
Andrew Tridgell efe5c0142c SITL: raise the ADC noise level to 8 bits when flying
this is about the level of noise of a aircraft that has a lot of
vibration
2012-02-28 09:43:49 +11:00
Andrew Tridgell cd4fcb694e IMU: removed unused accel_filtered code 2012-02-28 09:43:49 +11:00
Andrew Tridgell 87a6d97f7b AP_Param: fixed setting of CAM_P_G in ArduCopter
the variable CAM_P_G has the same prefix as the CAM_P group. We want
to allow for parameters having a common prefix with a group, so we
need to keep searching after we've found a group that matches the
prefix
2012-02-27 10:54:33 +11:00
Andrew Tridgell fa443bd928 AP_Param: make the templating code a bit clearer
add comments on the arguments, and name them in a clearer way
2012-02-27 10:54:33 +11:00
Andrew Tridgell eb35e0e8ac DCM: fixed the sense of the compass GPS test in initial yaw
we were only disabling null offsets when we didn't have a compass,
which doesn't make much sense!
2012-02-26 22:24:45 +11:00
rmackay9 297d2ae457 ModeFilter - corrected shadowed variable compiler warning for drop_high_sample 2012-02-26 17:57:28 +09:00
rmackay9 b9b88ba237 Filter - added AverageFilter - this will be used in place of SumFilter because it removes the possibility of overflows 2012-02-26 17:34:36 +09:00
rmackay9 f53ff8de97 Filter - removed shadowing of variables in constructors for Filter, ModeFilter and SumFilter (sorry tridge!)
increased maximum sample buffer size from 6 to 10
2012-02-26 17:17:46 +09:00
rmackay9 74f7d7a1c0 ModeFilter - remove older ModeFilter library (new library is now in Filter directory) 2012-02-26 15:36:23 +09:00
rmackay9 f264e29814 AP_RangeFinder - cut over to use new ModeFilter from Filter library 2012-02-26 15:34:50 +09:00
rmackay9 c14d7768f7 Filter - first version of filter library include ModeFilter 2012-02-26 15:34:05 +09:00
rmackay9 952e5d7bbc AP_Mount - #include FastSerial first to allow it to compile under Arduino 1.0 2012-02-26 15:31:56 +09:00
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