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81 lines
1.7 KiB
C++
81 lines
1.7 KiB
C++
#pragma once
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//
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// FILE: DAC8550.h
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// AUTHOR: Rob Tillaart
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// PURPOSE: Arduino library for DAC8550 SPI Digital Analog Convertor
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// VERSION: 0.1.4
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// DATE: 2021-02-04
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// URL: https://github.com/RobTillaart/DAC8550
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#include "Arduino.h"
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#include "SPI.h"
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#define DAC8550_LIB_VERSION (F("0.1.4"))
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#define DAC8550_POWERDOWN_NORMAL 0
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#define DAC8550_POWERDOWN_1K 1
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#define DAC8550_POWERDOWN_100K 2
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#define DAC8550_POWERDOWN_HIGH_IMP 3
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class DAC8550
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{
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public:
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DAC8550(uint8_t slaveSelect);
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DAC8550(uint8_t spiData, uint8_t spiClock, uint8_t slaveSelect);
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void begin();
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void setValue(uint16_t value);
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uint16_t getValue();
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void setPowerDown(uint8_t powerDownMode);
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uint8_t getPowerDownMode();
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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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uint16_t _value = 0;
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uint8_t _register = 0;
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uint32_t _SPIspeed = 16000000;
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void updateDevice();
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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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