ardupilot/libraries/AP_Motors/AP_MotorsCoax.h

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// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
/// @file AP_MotorsCoax.h
/// @brief Motor and Servo control class for Co-axial helicopters with two motors and two flaps
#ifndef __AP_MOTORS_COAX_H__
#define __AP_MOTORS_COAX_H__
#include <AP_Common.h>
#include <AP_Math.h> // ArduPilot Mega Vector/Matrix math Library
#include <RC_Channel.h> // RC Channel Library
#include "AP_Motors.h"
// feedback direction
#define AP_MOTORS_COAX_POSITIVE 1
#define AP_MOTORS_COAX_NEGATIVE -1
#define AP_MOTORS_SINGLE_SPEED_DIGITAL_SERVOS 250 // update rate for digital servos
#define AP_MOTORS_SINGLE_SPEED_ANALOG_SERVOS 125 // update rate for analog servos
#define AP_MOTORS_COAX_SERVO_INPUT_RANGE 4500 // roll or pitch input of -4500 will cause servos to their minimum (i.e. radio_min), +4500 will move them to their maximum (i.e. radio_max)
/// @class AP_MotorsSingle
class AP_MotorsCoax : public AP_Motors {
public:
/// Constructor
AP_MotorsCoax( RC_Channel& rc_roll, RC_Channel& rc_pitch, RC_Channel& rc_throttle, RC_Channel& rc_yaw, RC_Channel& servo1, RC_Channel& servo2, uint16_t speed_hz = AP_MOTORS_SPEED_DEFAULT) :
AP_Motors(rc_roll, rc_pitch, rc_throttle, rc_yaw, speed_hz),
_servo1(servo1),
_servo2(servo2)
{
AP_Param::setup_object_defaults(this, var_info);
};
// init
virtual void Init();
// set update rate to motors - a value in hertz
void set_update_rate( uint16_t speed_hz );
// enable - starts allowing signals to be sent to motors
virtual void enable();
// output_test - spin a motor at the pwm value specified
// motor_seq is the motor's sequence number from 1 to the number of motors on the frame
// pwm value is an actual pwm value that will be output, normally in the range of 1000 ~ 2000
virtual void output_test(uint8_t motor_seq, int16_t pwm);
// output_min - sends minimum values out to the motors
virtual void output_min();
// var_info for holding Parameter information
static const struct AP_Param::GroupInfo var_info[];
protected:
// output - sends commands to the motors
virtual void output_armed();
virtual void output_disarmed();
AP_Int8 _rev_roll; // REV Roll feedback
AP_Int8 _rev_pitch; // REV pitch feedback
AP_Int8 _rev_yaw; // REV yaw feedback
AP_Int16 _servo_speed; // servo speed
RC_Channel& _servo1;
RC_Channel& _servo2;
};
#endif // AP_MOTORSCOAX