CAJ | 학술논문

在计算机的使用中,发现在给个别模块FLASH SM9968加载程序时报错.通过进一步分析,确定了报错的原因是由于写信号有效时地址不稳定造成的.修改驻留在PC上的控制程序,使写使能信号在片选使能信号有效后2μs(软件可调)有效,而地址稳定时间需要片选有效后200 ns,因此保证了写信号有效之前地址已处于稳定状态,解决了加载程序出错的问题.
재계산궤적사용중,발현재급개별모괴FLASH SM9968가재정서시보착.통과진일보분석,학정료보착적원인시유우사신호유효시지지불은정조성적.수개주류재PC상적공제정서,사사사능신호재편선사능신호유효후2μs(연건가조)유효,이지지은정시간수요편선유효후200 ns,인차보증료사신호유효지전지지이처우은정상태,해결료가재정서출착적문제.
Some modules of computers cannot work normally while loading a program. The reason is that the address is not stable when writing enable signal(WE)is valid. By modifying the control program lingering in the computer(adjustable soft?ware),writing enable signal becomes valid at 2 μs after chip enable(CE)is valid. The address stabile time is 200 ns after CE is feasible,which can make sure that address is stabile before WE is feasible. The trouble was solved finally.