• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2006, Vol. 28 ›› Issue (9): 140-142.

• 论文 • 上一篇    

脉冲信号发生—比较法的CPLD设计

宋跃[1,2] 周明辉[2] 胡升平[1]   

  • 出版日期:2006-09-01 发布日期:2010-05-20

  • Online:2006-09-01 Published:2010-05-20

摘要:

本文讨论了一种新的脉冲信号的数字设计方法-比较法,该方法通过对信号频率、占空比、余数的比较来产生频率、占空比均步进可调的脉冲信号。实验表明,该方法是行之有效的。本文着重介绍了其CPLD设计原理和实现方法,同时介绍了以CPLD为数字处理核心、在PC机的控制下实现脉冲信号产生的系统设计方案。

关键词: 比较法 CPLD设计 脉冲信号发生器

Abstract:

A new digital design method which is called comparison method for pulse signals is introduced in this paper, in which the pulse signal frequency, the  duty cycle and the remainder are compared to generate the pulse signals whose frequencies, duty cycles and remainders are adjustable. Experiments show i  t is feasible. The CPLD design principle of the comparison method and the implementation are given emphatically. Meanwhile, a scheme of designing a puls e signal generation system controlled by a PC is introduced, which takes CPLD as the digital processing kernel.

Key words: (comparison method;CPLD design;pulse signal generator)