Line data    Source code

       1             : /*
       2             :  * Copyright (C) 2022  Kraus Hamdani Aerospace Inc. All rights reserved.
       3             :  *
       4             :  * This file is free software: you can redistribute it and/or modify it
       5             :  * under the terms of the GNU General Public License as published by the
       6             :  * Free Software Foundation, either version 3 of the License, or
       7             :  * (at your option) any later version.
       8             :  *
       9             :  * This file is distributed in the hope that it will be useful, but
      10             :  * WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
      12             :  * See the GNU General Public License for more details.
      13             :  *
      14             :  * You should have received a copy of the GNU General Public License along
      15             :  * with this program.  If not, see <http://www.gnu.org/licenses/>.
      16             :  *
      17             :  * Code by Tom Pittenger
      18             :  */
      19             : /*
      20             :     Implements I2C driver for Microchip MCP9600 digital thermocouple EMF to Temperature converter
      21             : */
      22             : 
      23             : #pragma once
      24             : #include "AP_TemperatureSensor_Backend.h"
      25             : 
      26             : #ifndef AP_TEMPERATURE_SENSOR_MCP9600_ENABLED
      27             :     #define AP_TEMPERATURE_SENSOR_MCP9600_ENABLED AP_TEMPERATURE_SENSOR_ENABLED
      28             : #endif
      29             : 
      30             : #if AP_TEMPERATURE_SENSOR_MCP9600_ENABLED
      31             : 
      32             : 
      33             : class AP_TemperatureSensor_MCP9600 : public AP_TemperatureSensor_Backend {
      34             :     using AP_TemperatureSensor_Backend::AP_TemperatureSensor_Backend;
      35             : public:
      36             : 
      37             :     enum class ThermocoupleType : uint8_t {
      38             :         K = 0,
      39             :         J = 1,
      40             :         T = 2,
      41             :         N = 3,
      42             :         S = 4,
      43             :         E = 5,
      44             :         B = 6,
      45             :         R = 7,
      46             :     };
      47             : 
      48             :     __INITFUNC__ void init(void) override;
      49             : 
      50           0 :     void update(void) override {};
      51             : 
      52             : private:
      53             : 
      54             :     void _timer(void);
      55             : 
      56             :     bool read_temperature(float &temperature);
      57             : 
      58             :     bool set_config(const ThermocoupleType type, const uint8_t filter);
      59             : };
      60             : 
      61             : #endif // AP_TEMPERATURE_SENSOR_MCP9600_ENABLED