摘要
设计中的信号发生电路主要是由数模转换芯片DAC7725U发出模拟信号,以控制激光器按照一定规律工作。首先介绍嵌入式驱动程序的作用及模型,通过对信号发生电路原理的介绍,以基于OMAP-L137的工业控制开发板为平台,详细地阐述了基于嵌入式Linux操作系统的信号发生模块的驱动程序设计及其测试程序的编写,并实现了设计中所需的±10 V方波信号的输出,为以后更深一步地学习驱动开发奠定了基础。
In signal circuit design,digital-analog converter chip DAC7725U sends analog signals to control the laser work according to certain rules.The function and model of embedded drivers were introduced.By introducing the theory of signal circuit,the design of signal module driver based on embedded Linux and how to write test procedures were particularly expounded based on OMAP-L137 industrial control platform development board.The required ±10 V Square wave signal output was implemented.This laid the foundation of deeper learning driver development for the future.
出处
《化工自动化及仪表》
CAS
北大核心
2010年第11期88-91,共4页
Control and Instruments in Chemical Industry
基金
国家"863"计划项目(2010AAJ206)
