针对信息安全及主机国产化的需求,基于国产CPLD芯片设计了一种控制国产飞腾D2000处理器主板上下电时序及具有设备检测功能的电路系统。本系统选用安路公司CPLD产品作为控制芯片,CPLD接收CPU控制信号,控制系统电源状态转换,进而控制主板各部件的电源,系统还包括电源电路、时钟电路、设备检测电路和JTAG下载调试电路。本系统采用Verilog语言实现CPLD的控制功能,使用安路专用国产EDA工具进行后续的综合、烧写工作。实验结果表明,该系统能精确控制飞腾主板各部件的上下电时序,可以实现正常开关机及设备检测功能,具有一定的实用性和推广价值。

In order to meet the needs of information security and home-made mainframe,based on domestic CPLD chip,a circuit system which controls the power-on and power-off timing of the motherboard of domestic Phytium D2000 processor is designed and has the function of device detection.This system uses the CPLD product of the safety road company as the control chip,CPLD receives the CPU control signal,controls the state conversion of the system power supply,and then controls the power supply of each component of the motherboard,the system also includes the power supply circuit,clock circuit,equipment detection circuit and JTAG download debugging circuit.This system uses Verilog language to realize the control function of CPLD,and uses the special domestic EDA tool of safety road to carry on the follow-up synthesis and writing work.The experiment results show that the system can accurately control the power-on and power-off time sequence of each component of Phytium motherboard,and can realize the normal switch on and off and equipment detection function,which has certain practicability and popularization value.