基于DSP与FPGA的运动控制器设计

设计了一种基于DSP和FPGA的四轴伺服电机运动控制器,该控制器选用DSP与FPGA作为核心部件。针对运动控制中的一些具体问题,如高速、高精度、实时控制等,规划了DSP的功能扩展,在FPGA上设计了功能相互独立的四轴运动控制电路。该电路接收和处理4路编码器反馈信号;可以处理原点、正负方向、到位以及急停等数字量输入信号;提供16路数字输入输出信号作为系统一般功能扩充使用;具有较高的集成度和灵活性。

Design of motion controller based on DSP and FPGA

This paper introduces a four-axis servo controller based on DSP and FPGA. The controller regards DSP and FPGA chip as the main chip of the motion controller. In allusion to some practical problems in the motion control, such as high speed, high precision, real-time control and so on, this paper plans the functions of DSP and designs a four-axis motion controller that one axis is independent of another in the FPGA. It can incept and dispose four-way encoder feedback signals ;can deal with the digital input signals,such as origin signal、direction of positive and negative signals 、stop signal and so on. It can provide 16-way digital output signals and 16 digital input signals to expand the system functions. It has high-integration and high-agility.