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144 lines
2.3 KiB
C++
144 lines
2.3 KiB
C++
//
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// FILE: ADG728.cpp
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.0
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// DATE: 2024-07-03
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// PURPOSE: Arduino Library for I2C ADG728 matrix switch. 1x8 Multiplexer.
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// URL: https://github.com/RobTillaart/ADG728
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// https://www.adafruit.com/product/5899
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#include "ADG728.h"
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ADG728::ADG728(uint8_t deviceAddress, TwoWire *wire)
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{
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_address = deviceAddress;
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_wire = wire;
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_mask = 0x00;
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_resetPin = -1;
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_forced = false;
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_error = ADG728_OK;
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_channels = 8;
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}
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bool ADG728::begin(uint8_t mask)
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{
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if (! isConnected()) return false;
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setChannelMask(mask);
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return true;
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}
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bool ADG728::isConnected()
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{
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_wire->beginTransmission(_address);
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return ( _wire->endTransmission() == 0);
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}
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uint8_t ADG728::channelCount()
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{
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return _channels;
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}
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bool ADG728::enableChannel(uint8_t channel)
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{
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if (channel >= _channels) return false;
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return setChannelMask(_mask | (0x01 << channel));
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}
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bool ADG728::disableChannel(uint8_t channel)
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{
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if (channel >= _channels) return false;
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return setChannelMask(_mask & ~(0x01 << channel));
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}
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bool ADG728::selectChannel(uint8_t channel)
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{
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if (channel >= _channels) return false;
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return setChannelMask(0x01 << channel);
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}
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bool ADG728::isEnabled(uint8_t channel)
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{
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if (channel >= _channels) return false;
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return (_mask & (0x01 << channel));
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}
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bool ADG728::disableAllChannels()
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{
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return setChannelMask(0x00);
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}
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bool ADG728::setChannelMask(uint8_t mask)
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{
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if ((_mask == mask) && (not _forced)) return true;
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_mask = mask;
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_wire->beginTransmission(_address);
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_wire->write(_mask);
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_error = _wire->endTransmission();
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return (_error == 0);
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}
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uint8_t ADG728::getChannelMask()
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{
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if (_forced) // read from device.
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{
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_wire->requestFrom(_address, (uint8_t)1);
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_mask = _wire->read();
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}
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return _mask;
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}
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void ADG728::setResetPin(uint8_t resetPin)
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{
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_resetPin = resetPin;
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pinMode(_resetPin, OUTPUT);
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digitalWrite(_resetPin, HIGH); // page 3 HIGH is normal operation
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}
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void ADG728::reset()
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{
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if (_resetPin != -1)
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{
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digitalWrite(_resetPin, LOW);
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delayMicroseconds(1);
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digitalWrite(_resetPin, HIGH);
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}
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}
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void ADG728::setForced(bool forced)
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{
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_forced = forced;
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}
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bool ADG728::getForced()
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{
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return _forced;
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}
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int ADG728::getError()
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{
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int error = _error;
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_error = ADG728_OK;
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return error;
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}
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// -- END OF FILE --
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