基于DSP与FPGA的四轴运动控制器设计与研究  

Design and Research on Four-axis Motion Controller Based on DSP and FPGA

作　　者：石江华[1] 魏世民[2] 李金泉[2] 杨向东[3] 

机构地区：[1]北京邮电大学自动化学院,北京100876 [2]北京邮电大学,北京100876 [3]清华大学,北京100084

出　　处：《现代电子技术》2011年第21期202-204,207,共4页Modern Electronics Technique

摘　　要：针对数控系统的工作特点和要求,通过对DSP TMS320F2812、FPGA EP2C8F256C6及以太网控制器RTL8019AS的深入研究,设计了一种基于DSP与FPGA的运动控制器。该控制器以DSP和FPGA为核心器件,针对运动控制中的实时控制、高精度等具体问题,规划了DSP的功能扩展,并在FPGA上扩展了功能相互独立的四轴运动控制电路。该电路实现了四路控制信号输出,四路编码信号的接收和处理,以及原点信号,正负限位信号等数字量的接收和处理。具有结构简单、开放性、模块化等特点,能够较好的满足运动控制器的实时性和精确性。According to the characteristics and requirements of CNC system, a motion controller based on DSP and FPGA was designed through a research on DSP TMS320F2812, FPGA EP2（28F256C6 and Ethernet controller RTL8019AS, For the realtime control and high precision issues of motion control, planning the DSP function expansion and expanding four-axis motion control circuit with independent function in the FPGA. The circuit can implement four-way control signal outputs, can deal with four-way encoder feedback signals, and can receive and dispose input digital signals such as origin signal, positive and negative limit signals and so on. The motion controller has simple structure, openness, modularity, etc. It can better meet the real-time and accurate performance of the motion controller.

关 键 词：DSP FPGA 以太网控制器 运动控制器 

分 类 号：TN791[电子电信—电路与系统]