基于DSP和FPGA的运动控制器的设计与实现

摘要

针对数控系统的工作特点和要求,通过对TI公司推出的DSP芯片TMS320C6713和ACTEL公司的FPGA芯片A3P400功能和特点的深入分析,给出了一种基于DSP和FPGA的运动控制器的设计与实现.在充分考虑上述芯片特点和资源的基础上,该控制器采用浮点型DSP与FPGA,能够更好地满足数控系统对运动控制单元的实时性和控制精度的苛刻要求.同时介绍了运动控制器的硬件整体结构及主要模块的详细设计,并给出了DSP软件实现的程序结构框架.%For the characteristics and requirements of CNC system, having in-depth analyzed functions and features of TMS320C6713 DSP chip of TI and A3P400 FPGA chip of ACTEL, presents a design and realization of motion controller based on DSP and FPGA.Based on taking full account ofthe chip ' s characteristics and resources, the controller uses floating-point DSP and FPGA, to better meet the requirements of real-time motion control unit and the control demanding precision for CNC system.The motion controller hardware structure and the detailed design of the main modules are introduced, and also gives the program structure of DSP software framework.