基于FPGA的数控系统位置控制模块实现技术

Implementation Technology of Position Control Module in Numerical Control System Based on FPGA

根据机床计算机数控系统位置控制的功能需要,基于Altera公司的CYCLONE II系列FPGA芯片,利用Verilog HDL硬件描述语言在Quartus II 9.0开发环境下,对位置控制模块中软件实现的功能用纯硬件实现,生成位置控制模块,完成对其的软件硬化。位置控制模块包含细分技术模块、鉴相模块、计数器模块、比较器模块等6个子模块,经过仿真,验证了设计的正确性,计数器模块中的圈计数基数和光电脉冲编码器的分辨率可调,增强了模块的可移植性和可适用性。

According to the functional requirements in the CNC system,Using Verilog HDL hardware description language to implement the function of position control module with pure hardware,based on FPGA chip of Altera company CYCLONE II series.Position control module contains subdivision technology module,phase discrimination module,counter module,comparator module etc.Design is proved correctly through the simulation,the lap counter module base number of counter module and the resolution of the photoelectric pulse coder are adjustable,that enhance the portability and applicability of position control module.