87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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*
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* Copyright 2013 - 2020, nymea GmbH
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* Contact: contact@nymea.io
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*
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* This file is part of nymea.
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* This project including source code and documentation is protected by
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* copyright law, and remains the property of nymea GmbH. All rights, including
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* reproduction, publication, editing and translation, are reserved. The use of
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* this project is subject to the terms of a license agreement to be concluded
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* with nymea GmbH in accordance with the terms of use of nymea GmbH, available
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* under https://nymea.io/license
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*
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* GNU Lesser General Public License Usage
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* Alternatively, this project may be redistributed and/or modified under the
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* terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation; version 3. This project is distributed in the hope that
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* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this project. If not, see <https://www.gnu.org/licenses/>.
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*
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* For any further details and any questions please contact us under
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* contact@nymea.io or see our FAQ/Licensing Information on
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* https://nymea.io/license/faq
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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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