Development Of Laser Marking Machine Based On ARM And FPGA

Laser marking is a marker method by use of high energy density laser beam on the target function, the target surface of the physical or chemical changed, and thus the surface in a variety of substances marked with permanent marker.It is laser welding, laser heat treatment, laser cutting, laser drilling and other technologies developed after application of a new processing technology and marking process. At present, domestic and foreign control in laser marking systems generally use microcontrollers to control or PCI card control as the core control system, marking the flight control accuracy can not keep up the speed on the requirements of the former, the latter volume is too large and difficult to move and the cost is relatively higher. This paper proposes a combination of ARM microprocessor and FPGA, as the marking system control core to solve the above problems, so a new generation of embedded laser marking machine is both cost and portability, but also high accuracy and fast marking.The subject of "Development of Laser Marking Machine based on ARM and FPGA" is a project with Zhangjiagang Kingmilan company also process control Polytechnic Institute of Nanjing University of Science with cooperation projects. At first,this paper introduced the laser marking machine system, working principle and components selection, the structure of the proposed control system and the overall program. Second, specific implementation of the program in the system design, by use of EDA software Cadence for schematic and PCB design, and research and simulate of signal integrity analysis to the lines from FPGA output to AD1866 conversion to ensure that when marking the flight hardware at high speed and reliable operation control effect is better than PCI card control. Meanwhile, human-computer interface using touch screen technology, combined with Dwin technology products for secondary development, greatly shorten the development cycle and reduce costs. Since the establishment of the hardware platform to achieve the uC/OS-Ⅱreal-time multi-task embedded system migration, and gave instructions and application design joint control communications with the FPGA, the design of the program introduces some commonly used marking algorithm and made a hit standard sample display.