DE2 Music Synthesizer Project

This project is based upon the 'DE2 Synthesizer' reference design. 

Functionality table:

KEY[1]: Demo Sound repeat

SW[0] : 0 Brass wave ,1 String wave

 SW[1] : 0 CH1_ON ,1 CH1_OFF

 SW[2] : 0 CH2_ON ,1 CH2_OFF

SW[17]: 1 Normal speed, 0 Allow speed variation

SW[16]: 0 Faster play, 1 Slower play

SW[15:14]: Frequency(octave) variations