Research Of High Speed And High Precision Motion Controller Based On DSP

High speed and high precision motion controller is important in NC(Numerical Control). The traditional NC system is based on a kind of close architecture, which is based on micro-control and MCU and ASIC. It cannot meet the requirement of the development of modern manufacturing followed by development of micro-electron. Therefore, It is an inevitable tendency that the architecture of NC system be open based on DSP and FPGA. So this tendency of open NC system will definitely give rise to new generation motion controller.This paper introduced high speed and high precision motion controller composed of DSP and FPGA. Firstly, this paper demonstrated the necessity and feasibility of high speed and high precision motion controller based on DSP and FPGA. Then it introduced the features of DSP, the mixture configuration of system from the point of view of module function. It also explained how to realize B-Spline interpolation and PED adjustment. Thirdly, the paper introduced character and theory and structure and configuration of master serial program to FPGA. Then it explained main functions of FPGA in motion controller, that is, it fed back actual moving position of motor and decoded system's address. Lastly, it described two important arithmetic of B-Spline interpolation and PED adjustment and simulation by MATLAB. The system we designed has a good comment in test.High speed and high precision is object to motion controller. We can layout complex movement, interpolate high speed and real-time multi-axes, compensate error and calculate more complex movement of kinematics and kinetics using high efficiency of operation of DSP. It will make the precision of control more extract, the speed of control more quick, and movement more stable. While configuration of programming logical apparatus is flexible, Structure of system will more opening using DSP and FPGA. The current of application is designing special movement-control according requirement of user.