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https://github.com/RobTillaart/Arduino.git
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134 lines
2.4 KiB
C++
134 lines
2.4 KiB
C++
#pragma once
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//
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// FILE: ADG726.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 ADG726 - 16 to 1 channel (2x) multiplexer
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// URL: https://github.com/RobTillaart/ADG726
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#include "Arduino.h"
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#define ADG726_LIB_VERSION (F("0.1.2"))
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#define ADG726_ALLOFF 0x80
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class ADG726
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{
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public:
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ADG726(uint8_t A, uint8_t B, uint8_t C, uint8_t D, uint8_t CSA, uint8_t CSB, uint8_t EN, uint8_t WR)
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{
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uint8_t arr[4] = { A, B, C, D };
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ADG726(arr, CSA, CSB, EN, WR);
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}
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explicit ADG726(uint8_t address[4], uint8_t CSA, uint8_t CSB, uint8_t EN, uint8_t WR)
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{
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for (int i = 0; i < 4; i++)
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{
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_addr[i] = address[i];
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pinMode(_addr[i], OUTPUT);
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digitalWrite(_addr[i], LOW);
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}
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_CSA = CSA;
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_CSB = CSB;
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_EN = EN;
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_WR = WR;
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pinMode(_CSA, OUTPUT);
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pinMode(_CSB, OUTPUT);
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pinMode(_EN, OUTPUT);
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pinMode(_WR, OUTPUT);
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digitalWrite(_CSA, HIGH);
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digitalWrite(_CSB, HIGH);
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digitalWrite(_EN, HIGH);
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digitalWrite(_WR, HIGH);
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// default all off.
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_channelA = ADG726_ALLOFF;
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_channelB = ADG726_ALLOFF;
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}
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// set both channels
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void setChannel(uint8_t channel)
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{
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_channelA = channel & 0x0F;
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_channelB = _channelA;
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write(_channelA, LOW, LOW, LOW);
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}
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void setChannelA(uint8_t channel)
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{
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_channelA = channel & 0x0F;
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write(_channelA, LOW, HIGH, LOW);
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}
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void setChannelB(uint8_t channel)
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{
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_channelB = channel & 0x0F;
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write(_channelB, HIGH, LOW, LOW);
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}
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// last set channel
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uint8_t getChannelA()
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{
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return _channelA;
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}
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uint8_t getChannelB()
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{
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return _channelB;
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}
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uint8_t channelCount()
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{
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return 16;
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}
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void allOff()
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{
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_channelA = ADG726_ALLOFF;
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_channelB = _channelA;
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write(_channelA, LOW, LOW, HIGH);
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}
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private:
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void write(uint8_t data, uint8_t csa, uint8_t csb, uint8_t en)
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{
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digitalWrite(_CSA, csa);
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digitalWrite(_CSB, csb);
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digitalWrite(_WR, LOW);
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digitalWrite(_EN, en);
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uint8_t mask = 0x01;
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for (int i = 0; i < 4; i++)
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{
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digitalWrite(_addr[i], ((data & mask) > 0)); // LSB-first
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mask <<= 1;
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}
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digitalWrite(_EN, HIGH);
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digitalWrite(_WR, HIGH);
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digitalWrite(_CSB, HIGH);
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digitalWrite(_CSA, HIGH);
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}
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uint8_t _addr[4];
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uint8_t _CSA;
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uint8_t _CSB;
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uint8_t _EN;
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uint8_t _WR;
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uint8_t _channelA;
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uint8_t _channelB;
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};
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// -- END OF FILE --
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