[P]Reading or writing to flash memory while it is being programmed or erased is[/P][P]prohibited. If CPU execution is required during the write or erase, the code to[/P][P]be executed must be in RAM. Any flash update can be initiated from within[/P][P]flash memory or RAM.[/P][P]这个是430手册上的一段话。完全没看懂，尤其后面。[/P]

[P]Reading or writing to flash memory while it is being programmed or erased is[/P][P]prohibited. If CPU execution is required during the write or erase, the code to[/P][P]be executed must be in RAM. Any flash update can be initiated from within[/P][P]flash memory or RAM.[/P][P] [/P][P]直译如下：[/P][P]当flash正在被编程时，对它的读或者写操作是被禁止的；[/P][P]如果在读或者擦除flash期间有CPU的操作请求，那么相应的代码必须要放到RAM中去执行；[/P][P]对flash的升级动作可以从flash或者RAM中启动[/P][P] [/P]