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Merge branch 'mpu6k_queue' of github.com:PX4/Firmware

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This commit is contained in:
Lorenz Meier
2013-08-06 09:25:05 +02:00
parent 9ca5cf3108 338e506a28
commit ab90030a0b
6 changed files with 553 additions and 111 deletions
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makefiles/config_px4fmu-v1_default.mk
+1
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@@ -94,6 +94,7 @@ MODULES += modules/sdlog2
MODULES += modules/systemlib
MODULES += modules/systemlib/mixer
MODULES += modules/mathlib
MODULES += modules/mathlib/math/filter
MODULES += modules/controllib
MODULES += modules/uORB
src/drivers/mpu6000/mpu6000.cpp
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src/modules/mathlib/math/filter/LowPassFilter2p.cpp
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@@ -0,0 +1,77 @@
// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/// @file LowPassFilter.cpp
/// @brief A class to implement a second order low pass filter
/// Author: Leonard Hall <LeonardTHall@gmail.com>
#include "LowPassFilter2p.hpp"
#include "math.h"
namespace math
{
void LowPassFilter2p::set_cutoff_frequency(float sample_freq, float cutoff_freq)
{
_cutoff_freq = cutoff_freq;
float fr = sample_freq/_cutoff_freq;
float ohm = tanf(M_PI_F/fr);
float c = 1.0f+2.0f*cosf(M_PI_F/4.0f)*ohm + ohm*ohm;
_b0 = ohm*ohm/c;
_b1 = 2.0f*_b0;
_b2 = _b0;
_a1 = 2.0f*(ohm*ohm-1.0f)/c;
_a2 = (1.0f-2.0f*cosf(M_PI_F/4.0f)*ohm+ohm*ohm)/c;
}
float LowPassFilter2p::apply(float sample)
{
// do the filtering
float delay_element_0 = sample - _delay_element_1 * _a1 - _delay_element_2 * _a2;
if (isnan(delay_element_0) || isinf(delay_element_0)) {
// don't allow bad values to propogate via the filter
delay_element_0 = sample;
}
float output = delay_element_0 * _b0 + _delay_element_1 * _b1 + _delay_element_2 * _b2;
_delay_element_2 = _delay_element_1;
_delay_element_1 = delay_element_0;
// return the value. Should be no need to check limits
return output;
}
} // namespace math
src/modules/mathlib/math/filter/LowPassFilter2p.hpp
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@@ -0,0 +1,78 @@
// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/// @file LowPassFilter.h
/// @brief A class to implement a second order low pass filter
/// Author: Leonard Hall <LeonardTHall@gmail.com>
/// Adapted for PX4 by Andrew Tridgell
#pragma once
namespace math
{
class __EXPORT LowPassFilter2p
{
public:
// constructor
LowPassFilter2p(float sample_freq, float cutoff_freq) {
// set initial parameters
set_cutoff_frequency(sample_freq, cutoff_freq);
_delay_element_1 = _delay_element_2 = 0;
}
// change parameters
void set_cutoff_frequency(float sample_freq, float cutoff_freq);
// apply - Add a new raw value to the filter
// and retrieve the filtered result
float apply(float sample);
// return the cutoff frequency
float get_cutoff_freq(void) const {
return _cutoff_freq;
}
private:
float _cutoff_freq;
float _a1;
float _a2;
float _b0;
float _b1;
float _b2;
float _delay_element_1; // buffered sample -1
float _delay_element_2; // buffered sample -2
};
} // namespace math
src/modules/mathlib/math/filter/module.mk
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@@ -0,0 +1,44 @@
############################################################################
#
# Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name PX4 nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
#
# filter library
#
SRCS = LowPassFilter2p.cpp
#
# In order to include .config we first have to save off the
# current makefile name, since app.mk needs it.
#
APP_MAKEFILE := $(lastword $(MAKEFILE_LIST))
-include $(TOPDIR)/.config
src/modules/sensors/sensors.cpp
+73 -11
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@@ -92,8 +92,35 @@
#define BARO_HEALTH_COUNTER_LIMIT_OK 5
#define ADC_HEALTH_COUNTER_LIMIT_OK 5
#define ADC_BATTERY_VOLTAGE_CHANNEL 10
#define ADC_AIRSPEED_VOLTAGE_CHANNEL 11
/**
* Analog layout:
* FMU:
* IN2 - battery voltage
* IN3 - battery current
* IN4 - 5V sense
* IN10 - spare (we could actually trim these from the set)
* IN11 - spare (we could actually trim these from the set)
* IN12 - spare (we could actually trim these from the set)
* IN13 - aux1
* IN14 - aux2
* IN15 - pressure sensor
*
* IO:
* IN4 - servo supply rail
* IN5 - analog RSSI
*/
#ifdef CONFIG_ARCH_BOARD_PX4FMU_V1
#define ADC_BATTERY_VOLTAGE_CHANNEL 10
#define ADC_AIRSPEED_VOLTAGE_CHANNEL 11
#endif
#ifdef CONFIG_ARCH_BOARD_PX4FMU_V2
#define ADC_BATTERY_VOLTAGE_CHANNEL 2
#define ADC_BATTERY_CURRENT_CHANNEL 3
#define ADC_5V_RAIL_SENSE 4
#define ADC_AIRSPEED_VOLTAGE_CHANNEL 15
#endif
#define BAT_VOL_INITIAL 0.f
#define BAT_VOL_LOWPASS_1 0.99f
@@ -731,11 +758,26 @@ Sensors::accel_init()
errx(1, "FATAL: no accelerometer found");
} else {
/* set the accel internal sampling rate up to at leat 500Hz */
ioctl(fd, ACCELIOCSSAMPLERATE, 500);
/* set the driver to poll at 500Hz */
ioctl(fd, SENSORIOCSPOLLRATE, 500);
// XXX do the check more elegantly
#ifdef CONFIG_ARCH_BOARD_PX4FMU_V1
/* set the accel internal sampling rate up to at leat 1000Hz */
ioctl(fd, ACCELIOCSSAMPLERATE, 1000);
/* set the driver to poll at 1000Hz */
ioctl(fd, SENSORIOCSPOLLRATE, 1000);
#else
/* set the accel internal sampling rate up to at leat 800Hz */
ioctl(fd, ACCELIOCSSAMPLERATE, 800);
/* set the driver to poll at 800Hz */
ioctl(fd, SENSORIOCSPOLLRATE, 800);
#endif
warnx("using system accel");
close(fd);
@@ -754,11 +796,28 @@ Sensors::gyro_init()
errx(1, "FATAL: no gyro found");
} else {
/* set the gyro internal sampling rate up to at leat 500Hz */
ioctl(fd, GYROIOCSSAMPLERATE, 500);
/* set the driver to poll at 500Hz */
ioctl(fd, SENSORIOCSPOLLRATE, 500);
// XXX do the check more elegantly
#ifdef CONFIG_ARCH_BOARD_PX4FMU_V1
/* set the gyro internal sampling rate up to at least 1000Hz */
if (ioctl(fd, GYROIOCSSAMPLERATE, 1000) != OK)
ioctl(fd, GYROIOCSSAMPLERATE, 800);
/* set the driver to poll at 1000Hz */
if (ioctl(fd, SENSORIOCSPOLLRATE, 1000) != OK)
ioctl(fd, SENSORIOCSPOLLRATE, 800);
#else
/* set the gyro internal sampling rate up to at leat 800Hz */
ioctl(fd, GYROIOCSSAMPLERATE, 800);
/* set the driver to poll at 800Hz */
ioctl(fd, SENSORIOCSPOLLRATE, 800);
#endif
warnx("using system gyro");
close(fd);
@@ -1360,6 +1419,9 @@ Sensors::task_main()
/* rate limit vehicle status updates to 5Hz */
orb_set_interval(_vstatus_sub, 200);
/* rate limit gyro to 250 Hz (the gyro signal is lowpassed accordingly earlier) */
orb_set_interval(_gyro_sub, 4);
/*
* do advertisements
*/
@@ -1395,7 +1457,7 @@ Sensors::task_main()
while (!_task_should_exit) {
/* wait for up to 500ms for data */
/* wait for up to 100ms for data */
int pret = poll(&fds[0], (sizeof(fds) / sizeof(fds[0])), 100);
/* timed out - periodic check for _task_should_exit, etc. */