基于CPLD的频谱电平显示电路设计与实现

The Design and Realization of a Display Circuit for the DC level of Frequency Spectrogram Based on CPLD

本文基于VHDL硬件描述语言,利用CPLD器件EPM570T100C5和LED点阵屏实现了对音频信号的频谱显示,给出了设计过程、VHDL语言源程序和实验结果,拓展了CPLD在显示领域的应用。

Base on VHDL hardware descriptive language, this paper realizes Frequency spectrogram display of the signal of audio frequency by using the Component EPM570TlOOC5 OF CPLD and LED Array, providing the designing process, VHDL language procedure and the result of Experiment, and expanding the application of CPLD in the displaying field.