摘要
基于CPLD器件与AT89C51单片机设计了一个综合系统,系统的硬件部分由单片机系统、时钟电路、通信电路、常用的外围电路(LED显示、模数转换等)和CPLD接口电路组成。软件部分采用硬件描述语言VHDL语言和汇编语言,可实现频率测量、采样控制和加法器等功能。
An integrated system was designed using CPLD and the microcontroller AT89C51. The hardware was made up of a micro-controller system, clock circuits, communication circuits, commonly used circuits （such as LED display and analog-digital conversion） and CPLD connection circuits. The software adopted hardware description language and assembly language. The system realizes fre- quency measurement, sampling control and adder etc functions.
出处
《电工电气》
2009年第5期39-41,56,共4页
Electrotechnics Electric
关键词
CPLD
单片机
VHDL语言
数字频率计
CPLD
microcontroller
very high speed integrated circuit hardware description language
digital frequency meter
