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https://github.com/RobTillaart/Arduino.git
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104 lines
2.7 KiB
C++
104 lines
2.7 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: 0.2.6
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// DATE: 2017-12-19
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// URL: https://github.com/RobTillaart/DAC8554
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//
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#include "Arduino.h"
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#include "SPI.h"
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#define DAC8554_LIB_VERSION (F("0.2.6"))
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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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// speed in Hz
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void setSPIspeed(uint32_t speed);
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uint32_t getSPIspeed() { return _SPIspeed; };
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bool usesHWSPI() { return _hwSPI; };
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// ESP32 specific
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#if defined(ESP32)
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void selectHSPI() { _useHSPI = true; };
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void selectVSPI() { _useHSPI = false; };
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bool usesHSPI() { return _useHSPI; };
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bool usesVSPI() { return !_useHSPI; };
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// to overrule ESP32 default hardware pins
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void setGPIOpins(uint8_t clk, uint8_t miso, uint8_t mosi, uint8_t select);
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#endif
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private:
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uint8_t _dataOut = 255;
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uint8_t _clock = 255;
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uint8_t _select = 255;
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bool _hwSPI = false;
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uint8_t _address;
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uint16_t _value[4]; // holds last written / buffered value per channel
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uint8_t _register[4]; // holds powerDownMode per channel
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uint32_t _SPIspeed = 16000000;
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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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SPIClass * mySPI;
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SPISettings _spi_settings;
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#if defined(ESP32)
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bool _useHSPI = true;
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#endif
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};
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// -- END OF FILE --
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