摘要
介绍一种基于PCI总线的激光标刻控制系统设计。系统采用PLX公司PCI总线控制芯片PCI9052作为接口芯片;采用Altera公司的CPLD控制器件EPM7064和AHDL编程语言,设计IP软核,实现局部总线的译码及功能电路的逻辑控制;基于IP核的PWM控制电路控制时钟取自33 MHz的PCI总线时钟,分频获得8位控制精度的PWM占空比调节,实现了高精度的固定频率和可变频率的PWM信号输出。配合硬件设计开发了测试软件和激光标刻应用软件,加快了硬件的设计过程和推广应用。
A design of laser marking control system based on PCI bus is introduced in this paper. PLX PCI9052 chip is used for PCI interface design and Altera CPLD device EPM7064 is used for logical controlling of bus coding and functional circuit. With AHDL programming language, IP soft core is designed to acquire precisely PWM signal output to control laser power. Test software is designed for improving the control card design and laser marking software expand its applications.
出处
《现代电子技术》
2009年第6期15-17,20,共4页
Modern Electronics Technique
