摘要
为解决最小系统板启动故障,提出一种启动优化方法。通过分析电源故障、复位异常、时钟不稳定、启动配置失败和初始化异常等因素,确定系统初始化失败和异常导致不启动和启动慢故障;通过初始化信号检测、检查SDRAM刷新周期控制寄存器、启动时间和MPTPR测试3个步骤得知:最小系统板的启动故障,是由于未在底层驱动BIOS中对寄存器MPTPR初始化赋值,并重新优化启动控制流程图。结果表明:该优化措施合理有效,能解决启动故障。
In order to solve the starting fault of the minimum system board,a starting optimization method is proposed.By analyzing the power failure,reset abnormal,clock instability,startup configuration failure,initialization abnormal and other factors,the system initialization failure and abnormal cause the failure of not starting and slow starting.It can be seen from the following initialization signal detection,check SDRAM refresh cycle control register,startup time and MPTPR test three steps:the minimum system board startup failure is due to the failure to initialize the register MPTPR in the underlying driver BIOS,and re-optimize the startup control flow chart.The results show that the optimization measures are reasonable and effective,and the startup failure is solved.
作者
周才明
汪元蛟
唐吉林
Zhou Caiming;Wang Yuanjiao;Tang Jilin(Test & Evaluaticn Center,Automation Research Institute Co.,Ltd. of China South Industries Group Corporation,Mianyang 621000,China)
出处
《兵工自动化》
2019年第4期45-48,共4页
Ordnance Industry Automation
关键词
最小系统板
启动故障
BIOS固件
启动优化
minimum system board
startup failure
BIOS firmware
startup optimization
