基于NiosⅡ的反应堆嵌入式密码权限单元设计

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The Design of Password Authorization System on Reactor Based on NiosⅡ

Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, China;National Engineering Research Center of Nuclear Technology Application in Industry, Mianyang, Sichuan, 621900, China

摘要: 以Altera公司的NiosⅡ软核处理器为核心,完成了反应堆嵌入式密码权限单元的设计。设计中运用了SOPC技术,以Cyclone系列FPGA为数字平台,将微处理器、定时器和串口、PS/2键盘、LCD、Flash、SDRAM等I/O接口控制器软核集中在一片FPGA上,通过输入不同权限的密码,输出相应权限的逻辑信号至反应堆的控制保护系统。该单元具备通过键盘和计算机端设置状态、密码修改存储以及LCD信息显示等功能,满足使用需求。
- NiosⅡ /
- SOPC /
- 反应堆 /
- 嵌入式 /
- 密码权限单元
Abstract: The design of embedded password authorization system of reactor based on NiosⅡCPU is introduced here. This design uses the SOPC technology based on the Cyclone series FPGA as a digital bench to integrate microprocessor、timers、RS-232, PS/2,LCD,Flash, SDRAM,etc into a FPGA chip. The system has functions that it can be set work status, its password can be modified and storage via keyboard or computer, and its LCD can display information during working. It is proved that the system achieves design goals in primary experimentation.
- NiosⅡ /
- SOPC /
- Reactor /
- Embedded /
- Password authorization system