justinbeech
62b104cbfa
Found free extra 256 bytes of RAM eliminate _clz use from libgcc
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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
026e4a6567
change constant to float 44330.0
2012-02-15 09:10:14 -08:00
Andrew Tridgell
804332c340
AP_Baro: fixed some signed/unsigned warnings
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and a potential bug on timer wrap
2012-02-13 21:39:18 +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
Andrew Tridgell
7ba744a11a
I2C: convert barometer library to new I2C library
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this also adds a healthy attribute and error checking
2011-12-28 20:41:53 +11:00
Andrew Tridgell
e7720254dd
AP_Baro: update MS5611 driver for new ap_proceduce prototype
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this saves calling millis() quite so often
2011-12-21 23:31:38 +11:00
Andrew Tridgell
bb0f179495
AP_Baro: fixed temperature on MS5611
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this caused a 2x scaling of altitude
2011-12-17 14:58:58 +11:00
Pat Hickey
f4aaa56b16
AP_Baro_MS5611: Asynchronous operation, plus c++ style changes.
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Yeah, I know this was a big change to make all at once.
2011-12-11 15:21:10 -08:00
Pat Hickey
d026e48032
AP_Baro : Add init( AP_PeriodicProcess * ) method to interface & implementations
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AP_Baro_MS5611 and AP_Baro_BMP085 implement the interface, with stubs only
2011-12-11 15:21:10 -08:00
Pat Hickey
f3ad7f3af8
Wire and SPI Init: move to sketch system.pde from libraries
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* Wire.begin removed from AP_Baro_BMP085::init()
* SPI.begin removed from AP_Baro_MS5611::init()
* SPI.begin removed from AP_InertialSensor_MPU6000::hardware_init()
* Both Wire.begin and SPI.begin added very early in init_ardupilot in
ArduCopter/system.pde and ArduPlane/system.pde
2011-12-11 15:21:10 -08:00
Pat Hickey
f52453beed
AP_Baro_MS5611: init must also perform SPI.begin
2011-12-11 15:21:09 -08:00
Pat Hickey
64eb1889ab
AP_Baro_MS5611: CS pin is arduino pin 40
2011-12-11 15:21:09 -08:00
Pat Hickey
1832ed0355
AP_Baro_MS5611: Implement AP_Baro interface
2011-12-11 15:21:09 -08:00
Pat Hickey
fdffd69257
AP_Baro_MS5611: renamed class implementation from APM_MS5611
2011-12-11 15:21:09 -08:00
Pat Hickey
c407b0d85e
AP_Baro_MS5611.h: reorganized
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* moved ms5611 macros to c file
* reorganized class declaration & retabbed
* made Temp, Pres, and Alt private variables.
2011-12-11 15:21:09 -08:00
Pat Hickey
34cebd8a3e
AP_Baro_MS5611: Overwrote with Jose Julio's latest files.
2011-12-11 15:21:09 -08:00
Pat Hickey
9250053bfe
Added AP_Baro and AP_Baro_MS5611 classes.
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Incomplete and does not work.
2011-12-11 15:21:08 -08:00