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31 Commits

Author SHA1 Message Date
Andrew Tridgell d404cc6542 AP_Baro: add set_external_temperature() 
this allows the use of an external temperature sensor for calibration
purposes, such as the sensor built in to the digital airspeed sensor.

The main affect this has is on the EAS2TAS calculation

The get_calibration_temperature() is used to choose either an external
temperature or an internal one. If an internal one is used then it is
clamped at no higher than 25 degrees C, to prevent hot electronics
on startup affecting altitude scaling and EAS2TAS
 2014-11-12 13:36:01 +11:00
Randy Mackay 3a81732721 Baro: minor param description updates 2014-10-14 12:42:27 +09:00
Randy Mackay 330d883f97 Baro: add altitude sanity check 
healthy flag made protected
healthy accessor fn added which also check latest calculated altitude
was ok
 2014-08-14 16:02:59 +09:00
Randy Mackay e9fbea9497 Baro: make get_altitude_difference const 2014-08-14 16:02:55 +09:00
Andrew Tridgell a458f1bf5f AP_Baro: minor improvements to Baro HIL code health check 2014-07-24 21:46:06 +10:00
Andrew Tridgell 74c3b404ee AP_Baro: avoid some float conversion warnings 2014-07-08 20:26:54 +10:00
Andrew Tridgell 41dd280739 AP_Baro: expose get_altitude_difference() 
this is useful for pressure altitude calculations
 2014-04-11 16:34:02 +10:00
Andrew Tridgell 2cd781997f AP_Baro: changed HIL driver to use floats and better handle starup 2014-02-15 05:48:18 +11:00
Andrew Tridgell 5e3c4441dc AP_Baro: use HAL_CPU_CLASS in baro driver 2013-12-31 10:28:37 +11:00
Andrew Tridgell 487caea3a5 AP_Baro: added update_calibration() method 
used for auto baro calibration when disarmed
 2013-10-05 18:44:00 +10:00
Andrew Tridgell fc119d9b80 AP_Baro: cleaned up temperature and pressure units 
thanks to Mike McCauley for pointing this out
 2013-09-21 21:30:41 +10:00
Andrew Tridgell 97b7130bb9 libraries: update license header to GPLv3 
we switched to GPLv3 a long time ago, but neglected to update the
per-file license headers
 2013-08-30 13:01:39 +10:00
Andrew Tridgell 5607c89df0 AP_Baro: use fabs() not abs() 
thanks to Randy for spotting this
 2013-08-30 13:01:33 +10:00
Andrew Tridgell 0f72401d8d AP_Baro: added GND_ALT_OFFSET parameter 
used for automatic barometric adjustment by a ground station equipped
with a barometer
 2013-07-10 14:38:57 +10:00
Paul Riseborough 7bdb098e77 AP_Baro: added get_EAS2TAS() 
this provides the scaling factor between equivalent and true airspeed
based on altitude
 2013-07-04 16:56:56 +10:00
Andrew Tridgell 61361dac9b AP_Baro: added units to baro documentation 2013-07-04 16:56:56 +10:00
Paul Riseborough 3b98bbd159 AP_Baro: more precise altitude calculation on PX4 
if not using an AVR CPU then use a more computationally expensive
altitude calculation, which is more precise at higher altitudes
 2013-07-04 16:56:56 +10:00
Randy Mackay aa2b10f044 AP_Baro: TEMP parameter comment fix 2013-06-18 11:28:36 +09:00
James Bielman 4fa7bb1486 Add AVR compatibility header for missing math.h definitions. 
- Define float versions of math functions to the double versions
  on AVR (eg. #define sinf sin).
- These macros appear to be missing in older versions of avr-libs.
- Include AP_Math.h rather than math.h to get these definitions.
 2013-01-16 13:52:17 +11:00
James Bielman 5631f865b2 Update floating point calculations to use floats instead of doubles. 
- Allows use of hardware floating point on the Cortex-M4.
- Added "f" suffix to floating point literals.
- Call floating point versions of stdlib math functions.
 2013-01-16 13:52:01 +11:00
Pat Hickey d92e8045c1 AP_Baro: uses scheduler panic 2012-12-20 14:52:31 +11:00
Pat Hickey 60f7788be4 AP_Baro: robust calibration 2012-12-20 14:51:35 +11:00
Pat Hickey 5d40074e4e AP_Baro: port to AP_HAL 2012-12-20 14:51:26 +11:00
uncrustify 6f02a645c3 uncrustify libraries/AP_Baro/AP_Baro.cpp 2012-08-21 19:00:18 -07:00
Andrew Tridgell 518d6365ff AP_Param: update remaining libraries for new constructor syntax 2012-08-08 12:11:57 +10:00
Andrew Tridgell a7b9aff79f AP_Baro: the DerivativeFilter now handles duplicate data 
this saves a few bytes of memory
 2012-08-08 12:07:36 +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 185c6e5b32 AP_Baro: change to a 7 point DerivativeFilter for climb rate 2012-07-05 13:00:47 +10:00
Andrew Tridgell f9fc7aafe7 AP_Baro: use DerivativeFilter in barometer climb rate 2012-07-05 13:00:46 +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 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