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https://github.com/betaflight/betaflight.git
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22147105fb
How it works: 1. Current Meter Source on FC is set to MSP/OSD Slave by user. 2. On reboot FC sends MSP_ANALOG to OSD Slave. 3. OSD Slave listens for incoming MSP as usual. 4. OSD responds to MSP as usual. 6. The FC recevies the data from the OSD Slave and updates the MSP Current Meter.
139 lines
4.4 KiB
C
139 lines
4.4 KiB
C
/*
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* This file is part of Cleanflight.
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*
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* Cleanflight is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Cleanflight is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Cleanflight. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "common/time.h"
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#include "current_ids.h"
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typedef enum {
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CURRENT_METER_NONE = 0,
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CURRENT_METER_ADC,
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CURRENT_METER_VIRTUAL,
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CURRENT_METER_ESC,
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CURRENT_METER_MSP,
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CURRENT_METER_MAX = CURRENT_METER_ESC
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} currentMeterSource_e;
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typedef struct currentMeter_s {
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int32_t amperage; // current read by current sensor in centiampere (1/100th A)
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int32_t amperageLatest; // current read by current sensor in centiampere (1/100th A) (unfiltered)
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int32_t mAhDrawn; // milliampere hours drawn from the battery since start
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} currentMeter_t;
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// WARNING - do not mix usage of CURRENT_SENSOR_* and CURRENT_METER_*, they are separate concerns.
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typedef struct currentMeterMAhDrawnState_s {
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int32_t mAhDrawn; // milliampere hours drawn from the battery since start
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float mAhDrawnF;
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} currentMeterMAhDrawnState_t;
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//
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// Sensors
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//
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typedef enum {
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CURRENT_SENSOR_VIRTUAL = 0,
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CURRENT_SENSOR_ADC,
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CURRENT_SENSOR_ESC,
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CURRENT_SENSOR_MSP
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} currentSensor_e;
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//
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// ADC
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//
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typedef struct currentMeterADCState_s {
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currentMeterMAhDrawnState_t mahDrawnState;
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int32_t amperage; // current read by current sensor in centiampere (1/100th A)
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int32_t amperageLatest; // current read by current sensor in centiampere (1/100th A) (unfiltered)
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} currentMeterADCState_t;
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typedef struct currentSensorADCConfig_s {
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int16_t scale; // scale the current sensor output voltage to milliamps. Value in 1/10th mV/A
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int16_t offset; // offset of the current sensor in millivolt steps
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} currentSensorADCConfig_t;
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PG_DECLARE(currentSensorADCConfig_t, currentSensorADCConfig);
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//
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// Virtual
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//
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typedef struct currentMeterVirtualState_s {
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currentMeterMAhDrawnState_t mahDrawnState;
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int32_t amperage; // current read by current sensor in centiampere (1/100th A)
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} currentSensorVirtualState_t;
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typedef struct currentSensorVirtualConfig_s {
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int16_t scale; // scale the current sensor output voltage to milliamps. Value in 1/10th mV/A
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uint16_t offset; // offset of the current sensor in millivolt steps
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} currentSensorVirtualConfig_t;
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PG_DECLARE(currentSensorVirtualConfig_t, currentSensorVirtualConfig);
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//
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// ESC
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//
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typedef struct currentMeterESCState_s {
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int32_t mAhDrawn; // milliampere hours drawn from the battery since start
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int32_t amperage; // current read by current sensor in centiampere (1/100th A)
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} currentMeterESCState_t;
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//
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// MSP
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//
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typedef struct currentMeterMSPState_s {
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int32_t mAhDrawn; // milliampere hours drawn from the battery since start
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int32_t amperage; // current read by current sensor in centiampere (1/100th A)
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} currentMeterMSPState_t;
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//
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// Current Meter API
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//
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void currentMeterReset(currentMeter_t *meter);
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void currentMeterADCInit(void);
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void currentMeterADCRefresh(int32_t lastUpdateAt);
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void currentMeterADCRead(currentMeter_t *meter);
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void currentMeterVirtualInit(void);
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void currentMeterVirtualRefresh(int32_t lastUpdateAt, bool armed, bool throttleLowAndMotorStop, int32_t throttleOffset);
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void currentMeterVirtualRead(currentMeter_t *meter);
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void currentMeterESCInit(void);
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void currentMeterESCRefresh(int32_t lastUpdateAt);
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void currentMeterESCReadCombined(currentMeter_t *meter);
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void currentMeterESCReadMotor(uint8_t motorNumber, currentMeter_t *meter);
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void currentMeterMSPInit(void);
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void currentMeterMSPRefresh(timeUs_t currentTimeUs);
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void currentMeterMSPRead(currentMeter_t *meter);
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void currentMeterMSPSet(uint16_t amperage, uint16_t mAhDrawn);
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//
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// API for reading current meters by id.
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//
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extern const uint8_t supportedCurrentMeterCount;
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extern const uint8_t currentMeterIds[];
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void currentMeterRead(currentMeterId_e id, currentMeter_t *currentMeter);
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