Sigma DE2-70 manual Music Synthesizer Demonstration, illustrates the setup for this demonstration

DE2-70 User Manual

•Press KEY3 on the DE2-70 board can play the next music file stored in the SD card.

•Press KEY2 and KEY1 will increase and decrease the output music volume respectively.

.

Figure 6.16 illustrates the setup for this demonstration.

Speaker

Lock

SD Card

with music fils(wav)

SD Card	Audio CODEC
	Controller
Driver
	On-Chip
	Audio
	PCM Buffer

Figure 6.16. The setup for the SD music player demonstration.

6.9 Music Synthesizer Demonstration

This demonstration shows how to implement a Multi-tone Electronic Keyboard using DE2-70 board with a PS/2 Keyboard and a speaker.

PS/2 Keyboard is used as the piano keyboard for input. The Cyclone II FPGA on the DE2-70 board serves as the Music Synthesizer SOC to generate music and tones. The VGA connected to the DE2-70 board is used to show which key is pressed during the playing of the music.

83