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1286 Commits

Author SHA1 Message Date
Andrew Tridgell 8190204287 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 0acea11152 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 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 1a32ececb4 AP_Math: added a safe_asin() function 
this adds range checking to asin()
 2012-02-24 11:52:55 +11:00
Andrew Tridgell 7dd909a16b AP_Math: added is_nan() methods to vector3f and matrix3f 2012-02-24 11:52:55 +11:00
Jason Short 2a4b7facaa added set integrator 2012-02-23 09:38:08 -08:00
Andrew Tridgell 8707965c15 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 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 13693e1a04 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 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
Andrew Tridgell f30c721886 AP_Param: added ParamToken type for variable list traversal 2012-02-19 17:05:28 +11:00
Jason Short 669e8e34ea added a limit to range output 2012-02-18 21:08:17 -08:00
Randy Mackay 0b369cf78b 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 2472f0a2f3 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 9602b1f91b 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 371a91cfcf 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 2b8f0c3a48 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 70a135c47c AP_Param: fixed copy-assignment operators for AP_Param vectors 2012-02-18 10:51:57 +11:00
Andrew Tridgell e656928c01 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 6f080742b8 AP_Param: added an initialised() method 
this will be used by the compass code
 2012-02-18 10:51:57 +11:00
justinbeech 5255512bf9 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 560985b509 made I term return in same pattern as D term 2012-02-16 22:09:22 -08:00
Andrew Tridgell 3fbb5a2d6c 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 8e88d9e19e change constant to float 44330.0 2012-02-15 09:10:14 -08:00
Michael Oborne b020a87c13 eedump ap param in perl 2012-02-15 21:31:58 +08:00
Andrew Tridgell bc89b53bdc SITL: adjust the SITL compass code to have saner z values 2012-02-15 22:34:16 +11:00
Andrew Tridgell 63d768143d 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 7d21692301 fixed dump size 2012-02-15 10:44:09 +11:00
Andrew Tridgell d2cc6740f0 show group_element too 2012-02-15 10:42:21 +11:00
Andrew Tridgell aaba4db144 AP_Param: added eeprom_aaparam.c dump utility 2012-02-15 10:41:06 +11:00
Andrew Tridgell 812b7ae5ae 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 c39914e734 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 7355f5613c 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 7ba65aecf3 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 273a974814 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 9103f7688c fixed SITL GPS heading to be 0..360 2012-02-14 11:26:42 +11:00
Andrew Tridgell a1c041b597 use stdint types in the compass code 2012-02-14 08:35:03 +11:00
Andrew Tridgell 6c20ff9492 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 4ec3857476 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 e70e1814ac AP_Baro: fixed some signed/unsigned warnings 
and a potential bug on timer wrap
 2012-02-13 21:39:18 +11:00
Andrew Tridgell 550b0be231 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 e7e7450f90 fixed imax load/save in PID 2012-02-13 16:22:53 +11:00
Andrew Tridgell c497ad9b7e fixed dead zone load/save 2012-02-13 16:22:53 +11:00
Andrew Tridgell 845d056c18 fixed PID initialisation 2012-02-13 16:22:53 +11:00
Andrew Tridgell c6b6898266 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 d41c56214c fixed types in GPS detect code 
using int everywhere is wasteful and non-portable
 2012-02-13 16:22:53 +11:00
Andrew Tridgell 16a5b5c3ee added AP_Param::show_all() 
this moves the logic into common code
 2012-02-13 16:22:52 +11:00
Andrew Tridgell ee2cb32a44 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 6cf7015859 added indexes to group info structures 2012-02-13 16:22:52 +11:00
Andrew Tridgell 7621b96a52 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 711cee9dfa 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 db8a58f994 fixed build on arduino 1.0 2012-02-13 16:22:52 +11:00
Andrew Tridgell 170fdef857 convert APM_PI library to AP_Param 2012-02-13 16:22:52 +11:00
Andrew Tridgell 74e0d2ef2a convert AC_PID library to AP_Param 2012-02-13 16:22:52 +11:00
Andrew Tridgell 4a9cb731d4 fixed missing return in D value 2012-02-13 16:22:52 +11:00
Andrew Tridgell c4b7a3116a restore _fCut that was lost in AP_Param development 2012-02-13 16:22:51 +11:00
Andrew Tridgell df77c462a4 fixed initialisation of RC_Channel class 2012-02-13 16:22:51 +11:00
Andrew Tridgell 244d2055ff AP_Param: fixed desktop build 2012-02-13 16:22:51 +11:00
Andrew Tridgell c195be594a desktop: more progmem string functions 2012-02-13 16:22:51 +11:00
Andrew Tridgell 34bc88eab5 AP_Param: added generic cast_to_float 2012-02-13 16:22:51 +11:00
Andrew Tridgell a1057fe738 AP_Param: disable debug ready for production 2012-02-13 16:22:51 +11:00
Andrew Tridgell 7ffb9b462d AP_Param: make ptype in first() and next() optional 2012-02-13 16:22:51 +11:00
Andrew Tridgell 5c3e059eea adapt Mavlink_compat.h to AP_Param 2012-02-13 16:22:51 +11:00
Andrew Tridgell dff75dba96 convert libraries to new typesafe macros 2012-02-13 16:22:51 +11:00
Andrew Tridgell b6ee5ca982 added nested group support and validation 2012-02-13 16:22:51 +11:00
Andrew Tridgell 30c76664ce added size of Vector6f 2012-02-13 16:22:51 +11:00
Andrew Tridgell fc0f1c52ca modify RC_Channel for AP_Param 2012-02-13 16:22:51 +11:00
Andrew Tridgell 013d66527d modify the PID library for AP_Param 2012-02-13 16:22:51 +11:00
Andrew Tridgell 78564f6a92 modify the IMU code for AP_Param 2012-02-13 16:22:51 +11:00
Andrew Tridgell 32d997b95f modify the compass code for AP_Param 2012-02-13 16:22:51 +11:00
Andrew Tridgell 2154288e2b hacks to get AP_Param to compile 2012-02-13 16:22:50 +11:00
Andrew Tridgell 937f8a4741 new AP_Param subsystem 2012-02-13 16:22:50 +11:00
justinbeech 4b0c71d6ac 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 a07f37f1b4 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 651bd6953b fix uint > int issue - for hil 2012-02-11 11:35:59 +08:00
Pat Hickey fb76aa9ca9 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 2f25c1f9f1 AC_PID Library - added example sketch 2012-02-05 17:35:15 +09:00
Randy Mackay a694e16540 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 5185901f79 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 b543bbf514 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 8bcc567406 AP_PID, AP_RC_Channel, FastSerial - small changes to make example sketches compile again 2012-01-28 17:54:20 +09:00
Randy Mackay 2e1e34fb9c 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 52f6e56f72 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
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
Randy Mackay 443a9c0ea7 OpticalFlow - fixed minor compiler warnings and moved chip select to A3 for APM2 2012-01-26 23:35:49 +09:00
Randy Mackay f27b41179b Sonar - changed default pin to A0 2012-01-26 22:50:48 +09:00
Randy Mackay 13caa24515 Optical Flow - added overflow check 2012-01-25 21:45:52 +09:00
Pat Hickey ef60642bb2 APM_RC examples: add calls to enable_out after init 2012-01-24 09:09:08 -08:00
Andrew Tridgell 9bb92ff4ac fixed example in PID library 2012-01-23 08:47:46 +11:00
Pat Hickey a13e371d1e APM_RC: PWM outputs are disabled by default on init 2012-01-22 12:03:11 -08:00
Pat Hickey 47204921e9 APM_RC enable_out and disable_out added to APM1 and APM2 
* Outputs still enabled by default
 2012-01-22 12:03:11 -08:00
Jason Short 0e58efca89 Removed Gyro filter, In the end it doesn't help and I think it could actually hurt gyro integration. 2012-01-20 22:52:29 -08:00
Michael Oborne e71266c258 change rc norm_output to scale evenly across the entire range 2012-01-20 16:24:55 +08:00
Andrew Tridgell 20aef3a8b8 added a simple DCM library example 2012-01-18 21:25:19 +11:00
Andrew Tridgell 4b8e2e701c fixed Oilpan test for new library structure 2012-01-18 20:31:58 +11:00
Doug Weibel e109992c12 Add a CLI setup action to reset the magnetometer offsets 
Since the magnetometer offsets are not available through the MAVLink parameter interface (since they are an AP_Var vector) this little feature allows them to be reset from the CLI.  Useful if you somehow get bad offsets or if you change magnetometer.  If you have a bad set of large offset values I have seen issues with the nulling algorithm have trouble converging to the proper values.  I have never seen it have trouble converging from 0/0/0, so this could be a useful feature from time to time.
 2012-01-15 16:15:08 -07:00
Mike Smith d79f62ce66 Teach the Makefile about the new Arduino sourcefile suffix 2012-01-15 11:51:38 -08:00
Jason Short e68f9191c9 updated channel notes 2012-01-15 10:24:15 -08:00
Andrew Tridgell 817e7442bd baro: fixed an integer overflow issue at high altitudes 
the averaging array was using 16 bit numbers, but we are storing
numbers with 19 significant bits. That caused overflow at high
altitude, and some very interesting altitude graphs!

Thanks to Michael Oborne for spotting this in a log
 2012-01-14 19:51:35 +11:00
Randy Mackay 4e9c668315 OpticalFlow - bug fix - highest resolution was incorrectly set as 1200 instead of 1600 2012-01-14 12:34:29 +09:00