ABSTRACT
This system is a simple eight note electronic organ designed by EDA technology, the system
is based on the principle of clock divider in the computer, using the top-down design method to
achieve, it can control the sound through key input. The design of multi-function electronic organ
is an expansion of the original electronic organ. The design of the electronic organ can be
composed of three modules, which are the sound module, the memory module and the selection
control module. VHDL programming language can realize the function of each module. Not only
can achieve the function of playing and playing, it can also achieve the function of "re-reading",
that is, can store any piece of music, and can be played out immediately. System implementation
is to use hardware description language VHDL in accordance with the modular way of design,
and then programming, timing simulation, the overall integration. The function of this system is
relatively complete, there is a certain value of practical use. This paper introduces the overall
design of electronic organ system, and based on the ultra-high speed hardware description
language VHDL in the relevant chip programming.
In the first chapter, the development and research status of electronic organ pair are analyzed.
The second chapter through the FPGA, EDA, VHDL hardware language to lay the foundation for
this design. The third chapter summarizes the music theory of the system, introduces the audio
knowledge and analyzes how to deal with the musical note knowledge. Know the beat and the
notes. The fourth chapter combs the design ideas of electronic organ based on FPGA, combs the
program design, the working process of electronic organ, and then designs the sub-module
program of electronic organ. The fifth chapter of the system simulation, through the simulation of
the automatic play module simulation, numerical control dividing module simulation, the entire
system simulation to complete the design.
【Key words】EDA FPGA Electronic Organ VHDL Language
