A wee wavetable synth for STM32F103Cx boards.
DAC provided by 8-bit R-2R ladder on GPIO port A pins 0-7.
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Polyphony
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Sine wave
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Triangle wave
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Sawtooth wave
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Square wave
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Velocity
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LED heartbeat
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Mario & Axel F demos
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LFO (performance issues with polyphony, ADSR)
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48KHz update rate
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7k point wave resolution
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Split keyboard
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Note on indicator
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MIDI interface
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ADSR
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'Smart' compression
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Drums?
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Pitch bending
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'Busy' indicator
