摘要
辨向细分电路在工业控制中有着广泛的应用。以FPGA为载体,利用其低成本、高密度及可在线修改的特点,设计了一个光栅尺信号的细分、辨向与计数系统。对于此系统接口的设计,因为目前I2C总线已经成为业界嵌入式应用的标准解决方案,所以利用有限状态机设计了一个I2C接口,使系统作为一个I2C从器件与外界进行通信。此系统已通过仿真验证,运行稳定。
Subdivision and differentiation direction circuit is wide used in industrial control. So, a subdivision, differentiation direction and counter system for grating signal based on FPGA were designed. The devices include some powerful features, such as low-cost, high density and programming on line. Now,I^2C-bus become a standard scheme in embedded applied, so, the system communicates with I^2C interface. The I^2C interface was designed by FSM （ Finite State Machine）. Simulation shows that the system works well.
出处
《仪器仪表用户》
2010年第3期7-9,共3页
Instrumentation
