Research And Design Of Crystal Processing Control System Based On ARM

In contemporary society, with the continuous improvement of people's living standard, consumers are more likely to buy the goods with gorgeous appearance. Crystals are economy, transparent, and visual dazzling diamond-like, consequently, as a decorative accessories, crystals are widely used in the decoration of various commodity, which are greatly improved the product's added value. In the future, the demand of diamond market probably rises year by year, and diamond industry tends to have whopping prospects.In this paper, with the consideration of the automation of diamond processing equipment, the automatic control system of diamond processing equipment is designed, which has great performance. With unmanned operation, it also achieves high precision motion control. In particular, according to specification needs of consumers, it can processes crystals conveniently, which is also economy.In this paper, a new control system of diamond processing program is persented. The hardware architecture is constituted by S3C44B0X, ATmega64 micro-controller and the external function modules, and the appication software is based on UCOS-Ⅱ, which ensures that the control system is real-time and stability.The acceleration and deceleration control algorithm for stepper motor is designed and implemented. the acceleration and deceleration frequency table is built by pre-compiled in the the system initialization phase.in the stepper motor's run-times, it only look up frequency table and get the corresponding frequency. The PWM control of stepper motor fully advantages the double buffer timer of S3C44B0X to achieve acceleration and deceleration without time delay. The system of pulse test is designed to verify the process of acceleration and deceleration control system, and to demonstrate the effectiveness of the system.The hardware system of the control system is designed in this paper, and the main peripheral circuits include memory circuit, power supply circuit, reset circuit, JTAG interface circuit, serial interface circuit, stepper output circuit and digital input and output circuit.Based on theμC/OS-Ⅱreal-time embedded operating system, the softwar platform is constructed in this paper. Firstly, the interrupt system ofμC/OS-Ⅱreal-time embedded operating system is designed in details. Secondly, the diamond grinding control system based on S3C44B0X and the Atmega64-based installation system of materials is created. Thirdly, system's interference is improved from the perspective of the software.The grinding experiment shows that the numerical control system provides good performance of stability, and it can not only meet high precision requirement, but also offer good robustness, openness, man-machine interface and maintainability, which achieves the desired objectives and has broad application prospects.