#pragma once // // FILE: AD985X.h // AUTHOR: Rob Tillaart // VERSION: 0.2.2 // DATE: 2019-02-08 // PURPOSE: Class for AD9850 and AD9851 function generator // // URL: https://github.com/RobTillaart/AD985X // #include "Arduino.h" #include "SPI.h" #define AD985X_LIB_VERSION (F("0.2.2")) #define AD9850_MAX_FREQ (40UL * 1000UL * 1000UL) #define AD9851_MAX_FREQ (70UL * 1000UL * 1000UL) class AD9850 { public: AD9850(); // for HW SPI only use lower 3 parameters. void begin(int select, int resetPin, int FQUDPin, int dataOut = 0, int clock = 0); void reset(); void powerDown(); void powerUp(); void setFrequency(uint32_t freq); // 0..AD9850_MAX_FREQ void setFrequencyF(float freq); // works best for lower frequencies. float getFrequency() { return _freq; }; uint32_t getMaxFrequency() { return AD9850_MAX_FREQ; }; // 0 .. 31 steps of 11.25 degrees void setPhase(uint8_t phase = 0); uint8_t getPhase() { return (_config >> 3); }; // offset to calibrate the frequency (internal counter) // offset must be stored by the user. void setCalibration(int32_t offset = 0) { _offset = offset; }; int32_t getCalibration() { return _offset; }; // internal chip factor used for frequency. (debugging only) uint32_t getFactor() { return _factor; }; // autoUpdate is default true; void setAutoUpdate(bool update) { _autoUpdate = update; }; bool getAutoUpdate() { return _autoUpdate; }; void update(); protected: void pulsePin(uint8_t pin); void writeData(); void swSPI_transfer(uint8_t value); bool _useHW = true; uint8_t _dataOut = 0; uint8_t _clock = 0; uint8_t _select = 0; float _freq = 1; uint32_t _factor = 0; uint8_t _config = 0; uint8_t _reset = 0; uint8_t _fqud = 0; int32_t _offset = 0; bool _autoUpdate = true; }; class AD9851 : public AD9850 { public: void setFrequency(uint32_t freq); // 0..AD9851_MAX_FREQ void setFrequencyF(float freq); uint32_t getMaxFrequency() { return AD9851_MAX_FREQ; }; void setRefClockHigh(); // 180 MHz void setRefClockLow(); // 30 MHz uint8_t getRefClock(); void setAutoRefClock(bool arc); bool getAutoRefClock() { return _autoRefClock; }; // 10 MHz is default, set in Hz. // will be kept <= 30 MHz as that is the freq of LOW mode. void setARCCutOffFreq(uint32_t Hz = 10000000UL ); uint32_t getARCCutOffFreq() { return _ARCCutOffFreq; }; protected: bool _autoRefClock = false; uint32_t _ARCCutOffFreq = 10000000UL; }; // -- END OF FILE --