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https://github.com/RobTillaart/Arduino.git
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89 lines
1.5 KiB
C++
89 lines
1.5 KiB
C++
#pragma once
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//
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// FILE: ADG731.h
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// AUTHOR: Rob Tillaart
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// DATE: 2023-07-24
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// VERSION: 0.1.2
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// PURPOSE: Arduino library for ADG731 - 32 to 1 channel multiplexer
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// URL: https://github.com/RobTillaart/ADG731
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#include "Arduino.h"
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#define ADG731_LIB_VERSION (F("0.1.2"))
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#define ADG731_ALLOFF 0x80
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class ADG731
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{
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public:
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explicit ADG731(uint8_t clockPin, uint8_t dataPin, uint8_t syncPin)
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{
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_clockPin = clockPin;
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_dataPin = dataPin;
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_syncPin = syncPin;
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pinMode(_clockPin, OUTPUT);
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pinMode(_dataPin, OUTPUT);
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pinMode(_syncPin, OUTPUT);
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digitalWrite(_clockPin, HIGH);
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digitalWrite(_dataPin, HIGH);
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digitalWrite(_syncPin, HIGH);
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// default all off.
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_channel = ADG731_ALLOFF;
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}
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void setChannel(uint8_t channel)
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{
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_channel = channel & 0x1F;
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write(_channel);
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}
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uint8_t getChannel()
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{
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return _channel;
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}
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uint8_t channelCount()
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{
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return 32;
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}
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void allOff()
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{
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_channel = ADG731_ALLOFF;
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write(_channel);
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}
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private:
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void write(uint8_t data)
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{
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digitalWrite(_syncPin, LOW);
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for (int i = 0; i < 8; i++)
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{
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// CLOCK max 30 MHz.
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digitalWrite(_clockPin, HIGH);
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digitalWrite(_dataPin, (data & 0x80) > 0);
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data <<= 1;
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digitalWrite(_clockPin, LOW);
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}
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digitalWrite(_syncPin, HIGH);
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}
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uint8_t _clockPin;
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uint8_t _dataPin;
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uint8_t _syncPin;
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uint8_t _channel;
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};
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// -- END OF FILE --
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