基于VXI总线的多通道时序触发模块的研究与设计  

Research and Design of Multi-Channel Timing Trigger Module Based on VXI Bus

作　　者：陈永[1] 石晓晶[1] 徐正明[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《计算机测量与控制》2013年第2期477-479,共3页Computer Measurement &Control

摘　　要：介绍了基于VXI总线的多通道时序触发模块的关键技术,该模块采用了FPGA可编程逻辑器件实现了VXI寄存器基接口及时序功能电路的设计,并开发了模块的驱动程序,能通过上位机的虚拟面板对输出时序的通道数、延时时间进行预置,并可对模块的功能进行自检;实际测试和应用表明,该模块具有运行稳定可靠、通道多、精度高、参数可调节、抗干扰性强、容易升级等特点,可以广泛应用于各种过程控制和自动化过程中实现对外部设备的控制。The key technology of multi--channel timing trigger module based on VXI bus is introduced. The module uses programmable logic device of FPGA, the designs of VXI bus register--based interface and timing function circuits are achieved. Driver program of the mod- ule is developed, the channels number of the output timing and the delay time are set through virtual panel of the host computer, and the module function can be self--test. The result of measurement and application shows that the module has some advantages, such as stable and reliable operation, multi--channel, high precision, adjustable parameters, strong interference, upgrade easily and so on. Furthermore, it can be widely used in a variety of control and automation process for external devices controlled.

关 键 词：VXI总线 多通道 FPGA 时序控制 

分 类 号：TP336[自动化与计算机技术—计算机系统结构]