University project involving the implementation of a GameBoy-like soundchip capable of turning MIDI signals into sound over 4 parallel sound-generators.

The design is split up into 3 main modules, with an extra semi-peripheral module and one fully external optional module. Below is a short explanation of the functionalities of the different modules.

This module is responsible for decoding the serial MIDI input signal into a parallel bit-vector in a format that the other modules can interact with.

The sound generator module is responsible for producing a PWM waveform for every sound channel. The fourth channel is a special type of sound generator, as it only produces noise.

The output module combines the four separate sound generated waves into one audio output signal. This is mostly done through signal addition and multiplication.

The waveform selector is a semi-peripheral module which allows for the user to select what kind of waveform should be generated on each individual sound channel.

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