signal_generator.h

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#pragma once
 
#include <bus/bus.h>
#include <entity/entity.h>
#include <lucidac/signal_generator.h>
 
#include <chips/AD9834.h>
#include <chips/DAC60508.h>
#include <chips/SR74HCT595.h>
 
namespace platform {
class TeensySignalGenerator : public SignalGenerator {
public:
  TeensySignalGenerator();
  bool init() override;

  bool is_installed() const override { return installed; }

  void set_frequency(float frequency) override;
  void set_phase(float phase) override;
  void set_wave_form(WaveForm wave_form) override;
  bool set_amplitude(float amplitude) override;
  bool set_square_voltage_levels(float low, float high) override;
  bool set_square_voltage_low(float low) override;
  bool set_square_voltage_high(float high) override;
  bool set_offset(float offset) override;

  float get_real_frequency() const override;
  float get_real_phase() const override;
 
  float get_frequency() const override;
  float get_phase() const override;
  WaveForm get_wave_form() const override;
  float get_amplitude() const override;
  float get_square_voltage_low() const override;
  float get_square_voltage_high() const override;
  float get_offset() const override;
  bool get_sleep() const override;
 
  float get_dac_out0() const override;
  float get_dac_out1() const override;

  void sleep() override;
  void awake() override;

  bool set_dac_out0(float value) override;
  bool set_dac_out1(float value) override;
 
  utils::status write_to_hardware() override;
 
private:
  const functions::DAC60508 digital_analog_converter;
  functions::AD9834 function_generator;

  static constexpr float _map_dac_levelshift(float x) {
    return (x + 2.0f) * (0.0f - 2.5f) / (2.0f + 2.0f) + 2.5f;
  }
 
  float _frequency;
  float _phase;
  WaveForm _wave_form;
  float _amplitude;
  float _square_low_voltage;
  float _square_high_voltage;
  float _offset;
  float _dac_out0;
  float _dac_out1;
 
  bool _sleep = true;
 
  bool installed = false;
 
  static constexpr uint8_t FUNCTION_GENERATOR_IDX = 2;
  static constexpr uint8_t DAC_IDX = 3;
 
  static constexpr uint8_t DAC_AMPLITUDE_CH = 0;
  static constexpr uint8_t DAC_SQUARE_HIGH_CH = 1;
  static constexpr uint8_t DAC_SQUARE_LOW_CH = 2;
  static constexpr uint8_t DAC_OFFSET_CH = 3;
  static constexpr uint8_t DAC_OUT0_CH = 4;
  static constexpr uint8_t DAC_OUT1_CH = 5;
};
 
} // namespace platform