81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
// SPDX-License-Identifier: GPL-3.0-or-later
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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*
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* Copyright (C) 2013 - 2024, nymea GmbH
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* Copyright (C) 2024 - 2025, chargebyte austria GmbH
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*
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* This file is part of nymea-plugins-modbus.
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*
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* nymea-plugins-modbus 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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* nymea-plugins-modbus 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 nymea-plugins-modbus. If not, see <https://www.gnu.org/licenses/>.
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*
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#ifndef MCP342X_H
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#define MCP342X_H
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#include <QThread>
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#include <QMutex>
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#include <hardware/i2c/i2cdevice.h>
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class MCP342XChannel: public I2CDevice
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{
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Q_OBJECT
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public:
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/* Resolution | LSB
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* ---------------------
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* 12 bits | 1 mV
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* 14 bits | 250 μV
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* 16 bits | 62.5 μV
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* 18 bits | 15.625 μ
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*/
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enum Gain {
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Gain_1 = 0,
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Gain_2 = 1,
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Gain_4 = 2,
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Gain_8 = 3
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};
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enum ConfRegisterBits {
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G0 = 0, // Gain Selection
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G1, // Gain Selection
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S0, // Sample Rate
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S1, // Sample Rate
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OC, // Conversion Mode Bit
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C0, // Channel Selection
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C1, // Channel Selection
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RDY // Ready Bit
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};
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enum SampleRateSelectionBit {
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Bits12 = 0,
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Bits14 = 1,
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Bits16 = 2,
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Bits18 = 3
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};
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explicit MCP342XChannel(const QString &portName, int address, int channel, Gain gain, QObject *parent = nullptr);
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QByteArray readData(int fd) override;
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private:
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int m_channel = 0;
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Gain m_gain = Gain_1;
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};
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#endif // MCP342X_H
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