济宁哪里做网站最便宜网站建设氺首选金手指12
张小明 2026/1/1 20:50:33
济宁哪里做网站最便宜,网站建设氺首选金手指12,外贸必备的app,wordpress远程发布api在之前的文章中我们提到过#xff0c;AECQ100可靠性实验中的flash擦写实验需要在flash中写入checkboard或者inverse-checkboard#xff0c;那么flash的checkboard究竟是什么内容呢#xff1f;
AEC-Q100 stress实验详解#7——EDR#xff08;耐久性、数据保持#xff09; c…在之前的文章中我们提到过AECQ100可靠性实验中的flash擦写实验需要在flash中写入checkboard或者inverse-checkboard那么flash的checkboard究竟是什么内容呢AEC-Q100 stress实验详解#7——EDR耐久性、数据保持checkboard直译过来是棋盘的意思。所以flash checkboard是指flash中内容像棋盘一样0和1间隔分布。那么有的同学会说直接写0x55或者0xAA不就好了么。其实不是这样的正常我们访问flash的地址是逻辑地址并不是flash内部的物理地址。以下面flash结构为例该flash IP共有137个IO1289ECC所以我们每次flash program动作至少要program 128bit忽略9bit ECC user program时flash controller会自动计算ECC并写入flash。flash的物理地址又分为XADR和YADR。XADR对应word lineWL表示行地址。YADR对应bit lineBL表示行内的地址每个IO对应一个BL。所以在这种情况下checkboard就是在每次128bit program中all-0和all-1交替出现。比如地址0x0000是all-0地址0x0010是all-1.inverse-checkboard同理即将checkboard中的内容反过来即可。如此即可保证每个BL中相邻bit为不同数据。此外在row切换时还需要特别注意相邻row的其实内容需要不一致。比如row#0 addr0是以0x0000开头的那么row#1 add0就要以0xFFFF开头。这样才能保证不同row之间的相邻bit也为不同数据。下面为checkboard数据row#0:00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFFrow#1FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF00000000 00000000 00000000 00000000