mirror of https://github.com/ArduPilot/ardupilot
53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
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#ifndef __AP_RANGEFINDER_PULSEDLIGHTLRF_H__
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#define __AP_RANGEFINDER_PULSEDLIGHTLRF_H__
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#include "RangeFinder.h"
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#include "RangeFinder_Backend.h"
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/* Connection diagram
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*
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* ------------------------------------------------------------------------------------
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* | J2-1(LED) J2-2(5V) J2-3(Enable) J2-4(Ref Clk) J2-5(GND) J2-6(GND) |
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* | |
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* | |
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* | J1-3(I2C Clk) J1-2(I2C Data) J1-1(GND) |
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* ------------------------------------------------------------------------------------
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*/
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// i2c address
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#define AP_RANGEFINDER_PULSEDLIGHTLRF_ADDR 0x62
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// min and max distances
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#define AP_RANGEFINDER_PULSEDLIGHTLRF_MIN_DISTANCE 0
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#define AP_RANGEFINDER_PULSEDLIGHTLRF_MAX_DISTANCE 1400
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// registers
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#define AP_RANGEFINDER_PULSEDLIGHTLRF_MEASURE_REG 0x00
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#define AP_RANGEFINDER_PULSEDLIGHTLRF_DISTHIGH_REG 0x8f // high byte of distance measurement
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// command register values
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#define AP_RANGEFINDER_PULSEDLIGHTLRF_MSRREG_ACQUIRE 0x04 // Varies based on sensor revision, 0x04 is newest, 0x61 is older
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class AP_RangeFinder_PulsedLightLRF : public AP_RangeFinder_Backend
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{
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public:
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// constructor
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AP_RangeFinder_PulsedLightLRF(RangeFinder &ranger, uint8_t instance, RangeFinder::RangeFinder_State &_state);
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// static detection function
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static bool detect(RangeFinder &ranger, uint8_t instance);
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// update state
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void update(void);
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private:
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// start a reading
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static bool start_reading(void);
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static bool get_reading(uint16_t &reading_cm);
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};
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#endif // __AP_RANGEFINDER_PULSEDLIGHTLRF_H__
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