采用ARM9和双CPLD的高速横机控制系统软硬件设计

Hardware and software design of control system in high speed flat knitter based on ARM9 and double CPLD

针对横机控制在硬件上的实时性、功能扩展、稳定性、可靠性、抗干扰能力等方面需求,提出基于ARM9和双CPLD的控制系统软硬件设计。硬件包括ARM9主控模块、双CPLD开发板电路、CPLD内部存储控制电路。采用模拟总线方法设计了控制接口电路。双CPLD开发板电路设计了2片CPLD电路、多电源电路、晶振电路、JTAG电路、输入输出隔离电路,并给出了双CPLD内部存储控制电路电路顶层原理图。给出了采用ARM9和双CPLD的控制系统软件结构设计和编织工艺设计。经过软件测试验证硬件运行正常。

For the knitting machine requirements on high real-time performance,stability,reliability,function expansion and interference resistance,a hardware and software design of a control system based on the ARM9 and double CPLD is presented.The hardware design comprises an ARM9 control module,a double CPLD circuit,and a CPLD internal control circuit.The design of the control interface circuit is performed using the bus simulation method;and the double CPLD development board circuit is designed with two CPLD circuits,a multi-power supply circuit,a crystal oscillator circuit,a JTAG circuit,and an I /O isolation circuit,and a top principle diagram of the double CPLD internal memory control circuit is presented.A software structure design of the control system structure and the design of the flat knitter knitting process adopting the ARM9 and double CPLD are presented.The soft testing shows that the hardware design is in normal operation.