Commit Graph

1650 Commits

Author SHA1 Message Date
Andrew Tridgell e0685f4408 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 1142ec0665 AP_Mount: removed unused enum 2012-07-03 10:39:34 +10:00
Andrew Tridgell f150c645c8 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 7a77832f45 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 f7b06e0a64 Baro: fixed build of MS5611 test code 2012-07-02 13:44:53 +10:00
Andrew Tridgell 2bd5cd3b9a AnalogSource: added some example code 2012-07-01 15:01:05 +10:00
Andrew Tridgell 0341e0e5f0 SITL: added support for new analog source
removed analogRead() to prevent people using it
2012-07-01 15:01:05 +10:00
Andrew Tridgell 2046e396a2 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 b5aa821071 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 02b9ea4dfe MPU6k: removed an unused variable 2012-06-29 21:54:09 +10:00
Andrew Tridgell 117bae9585 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 37494dda2b 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 21ae2957fb 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 e531061caa AHRS: re-instate new DCM drift correction code
This reverts commit 078489638d47fbaffde7c51249e36b5a8fc4ef9d.
2012-06-28 11:09:22 +10:00
Andrew Tridgell 8600ad8d7f 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 70bfacc350 SITL: removed an unused variable 2012-06-27 16:01:50 +10:00
Andrew Tridgell 57579e494b 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 ce016b5ae8 AHRS: include P term in omega
thanks to Jon for suggesting this
2012-06-27 16:01:50 +10:00
Andrew Tridgell 0fa1f29cf3 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 3ffecc18d8 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 3458962184 GPS: test the more modern MTK16 2012-06-27 16:01:50 +10:00
Andrew Tridgell 426006d98f 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 20c1baf585 SITL: changes UBlox simulation to 5Hz
this matches the real UBlox driver
2012-06-27 16:01:50 +10:00
Andrew Tridgell d9583ae5eb 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 5370f9c411 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 53e950531e 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 9fd3d15026 Filter: added 5 point average float filter 2012-06-27 16:01:50 +10:00
Jonathan Challinger 1ff9461bfb 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 73faaddc1b 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 0399aa9480 AHRS: update for new _fly_forward flag 2012-06-27 16:01:49 +10:00
Andrew Tridgell 2600afe18a 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 5316a45c20 AHRS: added GPS support to AHRS test 2012-06-27 16:01:49 +10:00
Andrew Tridgell 19954f30e5 GPS: added velocity and acceleration components
used by AHRS for acceleration correction
2012-06-27 16:01:49 +10:00
Andrew Tridgell 2b352d2b5c Math: added comment 2012-06-27 16:01:49 +10:00
Andrew Tridgell f23cebc808 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 c034e38cbd 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 abb6eb2471 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 cd0411ba33 Add linebreaks to increase readability. 2012-06-21 00:36:10 +02:00
Amilcar Lucas be6923be0f Improve parameters descriptive text 2012-06-21 00:20:37 +02:00
Amilcar Lucas 1ead5f1690 Documentation improvements, no functional changes (only comments) 2012-06-17 22:53:54 +02:00
Amilcar Lucas 8f646467e5 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 d9e6a1ece9 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 ceba24ff8f 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 b32726e867 GPS: need pgmspace.h for _write_progstr_block() 2012-06-15 16:27:11 +10:00
Andrew Tridgell ae9883a8e2 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 b7e807cd58 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 a12cb8fd9a Added camera trigger functionality 2012-06-13 21:00:20 +02:00
Amilcar Lucas f7ef60565e 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 e9226d6f0a Spellcheck 2012-06-13 20:44:35 +02:00
rmackay9 fca914b7cf AP_GPS_NMEA: fix from Roberto Navoni to improve NMEA accuracy 2012-06-12 20:27:50 +09:00
Andrew Tridgell f9c5b135bc GPS: use the new nav_setting in a couple of the sample sketches 2012-06-10 16:35:13 +10:00
Andrew Tridgell 0542539fc9 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 926dfbc0e9 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 04a71197f9 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 f347572fc2 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 9adaacedcd GPS: added debug code to the main GPS class 2012-06-08 16:42:03 +10:00
Andrew Tridgell f4718cafad 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 ddebf7b443 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 148e59a4de GPS: tidy up the auto gps test 2012-06-08 16:42:02 +10:00
Robert Lefebvre f7be9a4b5d TradHeli adding ramp up time to Ch8 Throttle Pass-through. 2012-06-07 22:55:47 -04:00
Robert Lefebvre 0c8078c436 AP_MotorsHeli Syntax correction. 2012-06-04 15:53:07 -04:00
Andrew Tridgell 43fe5bab78 re-enable the AP_Mount build 2012-06-04 19:32:11 +10:00
Andrew Tridgell b4fbda7a28 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 a6c1a86c23 mavlink: fixed build with uart resend 2012-06-04 13:45:55 +10:00
Andrew Tridgell 1ad17bc78c MAVLink: updates to mavlink headers to fix mavlink 1.0 issues 2012-06-04 13:34:07 +10:00
Andrew Tridgell 4f7a80a04d Mavlink: fixed library build for MAVLink 1.0 2012-06-04 13:14:52 +10:00
Andrew Tridgell 34234b7003 SITL: fixed SITL build with mavlink10 2012-06-04 13:14:52 +10:00
Andrew Tridgell 7602f698eb mavlink10: fixed MAV_VAR -> MAVLINK_TYPE 2012-06-04 13:14:51 +10:00
Andrew Tridgell 2c3bfd896a MAVLink: updated to latest upstream mavlink
this includes no significant changes
2012-06-04 13:14:51 +10:00
Jason Short 1ebfb8fe25 GPS time set to unsigned int32 2012-06-03 11:13:50 -07:00
rmackay9 bad6591e6d AP_Baro: fixed comment to clarify that every-other call updates temperature or pressure 2012-06-03 17:31:17 +09:00
rmackay9 8f8e91a620 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 080c5184d5 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 8f3169a200 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 3246f2bad3 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 37e4637c13 RC_Channel.pde: fixed compile errors so that it actually works! 2012-06-02 14:00:44 +09:00
rmackay9 df3fb5c041 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 477aa6e47a 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 7ee38df5a2 Issue 416: RC_Channel – Fix to make dead_zones still output 0 2012-05-31 12:05:47 -07:00
Jason Short 2cc9fde3c9 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 00cabc6343 Channel rage fix - low output was always 0 vs _low 2012-05-31 11:31:48 -07:00
Robert Lefebvre bafb478924 TradHeli: Incorporating Ext ESC Control 2012-05-30 21:50:25 -04:00
Robert Lefebvre ffc04b7305 Fix TradHeli Collective Yaw Effect bug. 2012-05-25 15:25:21 -04:00
Andrew Tridgell 734dcebb2a SITL: fixed ChipErase()
the loop never completed
2012-05-23 21:15:45 +10:00
Andrew Tridgell 5e0d937e50 SITL: fixed build with new ChipErase() call 2012-05-23 17:33:33 +10:00
Andrew Tridgell c2fb8a7a98 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 8f27297896 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 37f652e19b AP_Common: fixed some duplicate product ID warnings 2012-05-17 23:37:32 +10:00
rmackay9 eaeaa3811a 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 fe742f1c23 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 c323a71933 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 a22b15adf1 PRODUCT: Define product IDs for all supported products 2012-05-09 18:30:36 -07:00
Craig Elder b824a87b90 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 46614e9acd fixed typo ("minimum" should have been "maximum") 2012-05-06 15:50:19 -07:00
Andrew Tridgell 76a3fd9a4e MPU6k: added suspend/resume on init 2012-05-01 12:06:54 +10:00
Andrew Tridgell ae1702c20b Baro: added suspend/resume on init 2012-05-01 12:06:54 +10:00
Andrew Tridgell 3115d48ba1 ADC: added suspend/resume on init 2012-05-01 12:06:54 +10:00
Andrew Tridgell 57ac39649a 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 3b2d203f0f 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 8f2cecae4d MAVLink: re-generated with new pygen
this moves the enums to make them less order sensitive
2012-04-30 12:27:30 +10:00