基于DSP+CPLD的电动舵机控制系统的设计

Design of actuator control system based on DSP and CPLD

设计了一个基于DSP+CPLD的电动舵机控制系统。硬件电路包括控制器、驱动电路、信号检测电路以及保护电路,完成了对各部分电路的检测,同时采用了PI控制算法,并对参数进行了调整。采用DSP和CPLD相结合的主控单元,简化了DSP的外围电路,减少了DSP消耗的运算资源,并充分运用了CPLD编程的灵活性。实验结果表明,该电动舵机控制系统运行可靠、稳定,具有较强的实用性。

An actuator control system based on DSP （Digital Signal Processor） and CPLD （Complex Programmable Logic Device） is designed. The hardware circuits consists of controller, drive circuits, signals detection circuits and protection circuits, detecting of these circuits has been accomplished. Three closed loop PI algorithm is used and the PI parameters have been adjusted. Using the controller combined by DSP and CPLD not only simplifies the peripheral circuits of DSP, but also reduces the computing resources consumed by DSP and utilizes the flexibility of programming of CPLD. The experimental result shows that the actuator control system is reliable and stable and it has strong practicability.