最后问一个问题:如下图,TRM上描述“Specifically, external logic is needed to isolate the upper address lines (A12–A27) of the NOR flash from the device pins and drive them low during boot.”这个 ...
我再想请教一个问题:在TRM中关于Fast External Booting有这样的描述“Addr/Data muxed device or a non-muxed (selected using SYSBOOT[11:10]) device in connected in XIP_MUX1 configuration”,是不是一定要 ...