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66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
#pragma once
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//
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// FILE: DAC8554.h
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// AUTHOR: Rob Tillaart
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// PURPOSE: Arduino library for DAC8554 SPI Digital Analog Convertor
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// VERSION: 0.2.1
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// HISTORY: See DAC8554.cpp
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// URL: https://github.com/RobTillaart/DAC8554
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//
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#include "SPI.h"
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#define DAC8554_LIB_VERSION (F("0.2.1"))
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#define DAC8554_POWERDOWN_NORMAL 0x00
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#define DAC8554_POWERDOWN_1K 0x40
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#define DAC8554_POWERDOWN_100K 0x80
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#define DAC8554_POWERDOWN_HIGH_IMP 0xC0
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class DAC8554
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{
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public:
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// hardware SPI constructor
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DAC8554(uint8_t slaveSelect, uint8_t address = 0); // address is 0,1,2,3
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// software SPI constructor
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DAC8554(uint8_t spiData, uint8_t spiClock, uint8_t slaveSelect, uint8_t address = 0);
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void begin();
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void bufferValue(uint8_t channel, uint16_t value);
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void setValue(uint8_t channel, uint16_t value);
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uint16_t getValue(uint8_t channel);
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//writes the value to the channel but does not affect buffered ones
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void setSingleValue(uint8_t channel, uint16_t value);
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void bufferPowerDown(uint8_t channel, uint8_t powerDownMode);
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void setPowerDown(uint8_t channel, uint8_t powerDownMode);
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uint8_t getPowerDownMode(uint8_t channel);
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void setSinglePowerDown(uint8_t channel, uint8_t powerDownMode);
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// write all buffers to all(up to 4) 8554's channel's
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void broadcastBuffer();
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// write value to all(up to 4) 8554's channel's
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void broadcastValue(uint16_t value);
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// write powerDownMode to all 8554's channel's
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void broadcastPowerDown(uint8_t powerDownMode);
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private:
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uint8_t _spiData;
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uint8_t _spiClock;
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uint8_t _slaveSelect;
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bool _hwSPI;
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uint8_t _address;
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uint16_t _value[4]; // holdes last written / buffered value per channel
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uint8_t _register[4]; // holds powerDownMode per channel
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void writeDevice(uint8_t configRegister, uint16_t value);
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void swSPI_transfer(uint8_t value);
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};
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// -- END OF FILE --
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