基于FPGA的可编程电阻装置设计  

Design of Programmable Resistance Equipment Based on FPGA

作　　者：李小文[1] 刘伟良[1] 刘丽君[1] 

机构地区：[1]株洲南车时代电气股份有限公司技术中心,湖南株洲412001

出　　处：《铁道机车车辆》2012年第6期75-78,共4页Railway Locomotive & Car

摘　　要：针对现有市场上销售的各种电阻元器件,如固定阻值电阻、滑线电阻器、电阻箱均不能直接给出期望的任意阻值问题,研究了一种基于FPGA的可编程电阻装置。该装置能够接收并行总线或以太网通讯的指令,并根据指令快速、准确地输出期望电阻值。详细介绍了可编程电阻装置在硬件设计、软件设计方面需要重点考虑的一些问题。基于FPGA的可编程电阻装置解决了快速、准确的生成期望电阻的难题。In view of the problem that all kinds of resistance on the markets , such as fixed value resistors, slide-wire resistors and resistance boxes can not show any expected resistance value directly, a device of programmable resistance based on FPGA is studied in this paper. With this equipment, instructions from parallel bus or Ethernet communication can be received and according to the instructions, an expected resistance value will be fast and accurately output. The article also introduces the very relevant concerns in hardware and software designs of programmable resistance. The equipment based on FPGA has successfully resolved the above questions.

关 键 词：现场可编程门阵列 可编程电阻 并行总线 以太网 

分 类 号：TP211[自动化与计算机技术—检测技术与自动化装置]