ardupilot/libraries/AP_HAL/AnalogIn.h

47 lines
1.3 KiB
C++

#pragma once
#include <inttypes.h>
#include "AP_HAL_Namespace.h"
class AP_HAL::AnalogSource {
public:
virtual float read_average() = 0;
virtual float read_latest() = 0;
virtual void set_pin(uint8_t p) = 0;
// return a voltage from 0.0 to 5.0V, scaled
// against a reference voltage
virtual float voltage_average() = 0;
// return a voltage from 0.0 to 5.0V, scaled
// against a reference voltage
virtual float voltage_latest() = 0;
// return a voltage from 0.0 to 5.0V, assuming a ratiometric
// sensor
virtual float voltage_average_ratiometric() = 0;
};
class AP_HAL::AnalogIn {
public:
virtual void init() = 0;
virtual AP_HAL::AnalogSource* channel(int16_t n) = 0;
// board 5V rail voltage in volts
virtual float board_voltage(void) = 0;
// servo rail voltage in volts, or 0 if unknown
virtual float servorail_voltage(void) { return 0; }
// power supply status flags, see MAV_POWER_STATUS
virtual uint16_t power_status_flags(void) { return 0; }
// bitmask of all _power_flags bits ever set, so transient
// failures can still be diagnosed
virtual uint16_t accumulated_power_status_flags(void) const { return 0; }
};
#define ANALOG_INPUT_BOARD_VCC 254
#define ANALOG_INPUT_NONE 255