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Slight improvement of the tone generator.

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This commit is contained in:
teixeluis 2021-06-11 00:13:56 +01:00
parent edcd780402
commit c2dc7d1cf5
6 changed files with 99 additions and 38 deletions
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21
firmware/baseband/tone_gen.hpp
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@ -25,22 +25,41 @@
#include <cstdint>
#include <cstddef>
#include <bitset>
static const std::bitset<2048> wave_bits (0xFFFFFF);
class ToneGen {
public:
enum tone_type { sine, square };
/*ToneGen(const size_t sample_rate
) : sample_rate_ { sample_rate }
{};*/
void configure(const uint32_t delta, const float tone_mix_weight);
void configure(const uint32_t delta, const float tone_mix_weight, const tone_type tone_type);
int32_t process(const int32_t sample_in);
private:
tone_type current_tone_type_ { sine };
//size_t sample_rate_;
float input_mix_weight_ { 1 };
float tone_mix_weight_ { 0 };
uint32_t delta_ { 0 };
uint32_t tone_phase_ { 0 };
/**
* Generator function for sine waves:
*/
int32_t tone_from_sine_table();
/**
* Generator function for square waves:
*/
int32_t tone_square();
};
#endif
#endif /* __TONE_GEN_H__ */