ardupilot/libraries/AP_InertialSensor/AP_InertialSensor_ADIS1647x.h

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2020-05-11 04:22:22 -03:00
/*
* This file is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This file is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
the ADIS1647x is unusual as it uses 16 bit registers. It also needs
to run as the only sensor on the SPI bus for good performance
*/
#pragma once
#include <AP_HAL/AP_HAL.h>
#include "AP_InertialSensor.h"
#include "AP_InertialSensor_Backend.h"
class AP_InertialSensor_ADIS1647x : public AP_InertialSensor_Backend {
public:
static AP_InertialSensor_Backend *probe(AP_InertialSensor &imu,
AP_HAL::OwnPtr<AP_HAL::Device> dev,
enum Rotation rotation,
uint8_t drdy_gpio);
/**
* Configure the sensors and start reading routine.
*/
void start() override;
bool update() override;
private:
AP_InertialSensor_ADIS1647x(AP_InertialSensor &imu,
AP_HAL::OwnPtr<AP_HAL::Device> dev,
enum Rotation rotation,
uint8_t drdy_gpio);
/*
initialise driver
*/
bool init();
void read_sensor(void);
void loop(void);
bool check_product_id();
// read a 16 bit register
uint16_t read_reg16(uint8_t regnum) const;
// write a 16 bit register
void write_reg16(uint8_t regnum, uint16_t value) const;
AP_HAL::OwnPtr<AP_HAL::Device> dev;
uint8_t accel_instance;
uint8_t gyro_instance;
enum Rotation rotation;
uint8_t drdy_pin;
uint16_t last_counter;
bool done_first_read;
float temp_sum;
uint8_t temp_count;
float accel_scale;
float gyro_scale;
};