Research On Embedded Numerical Control System Based On ARM

The embedded numerical control system based on ARM integrates the techniques of computer numerical control, ARM, the movement control chip and the embedded real-time operation system, etc. It's a new attempt to research on a four axes numerical control system that is low cost and high capability. The research on the hardware and software of the embedded system and the method of controlling movement control chip are the key of this thesis. The whole thesis is divided into seven chapters:In chapter 1, there is an introduction. At first, it summarized the development and trend of numerical control technique and the present general situation of our country. Then, the general situation of the embedded system in brief is introduced. At last, the primary signification of this thesis is proposed.In chapter 2, there is the total structure design of the embedded system. In this chapter, the system demand analysis is carried on and the ARM and movement control chip are introduced; finally, the total structure design is present.In chapter 3, there is the design of the system's hardware. It is the key chapter of the thesis. In this chapter, the total design of the hardware is proposed and the design of the print circuit in details is illustrated.In chapter 4, there is the design of the system's software. In this chapter, the total design of software and the real-time operation system uC/OS-II are introduced. Finally, the tasks of system including interruption, pulse signal are described.In chapter 5, there is the method of controlling movement control chip. It is another key chapter of the thesis. In this chapter, the method of controlling movement control chip is introduced including writing or reading PCL6045 by bus, the model of movement control and the interpolation.In chapter 6, there is the realizing and debugging the system. In this chapter, the process of system realization and debug is presented and the results of debug are obtained.Finally, the research contents of this dissertation have been summarized and the prospect of embedded numerical control system has been opened up.