用LPC93251操作nand flash K9F6408，能正确擦，写，读。改用其它芯片，方法类似，注意时序就行了。如换用大容量flash，请注意每块的页数，6408每块是16页的。【-with LPC93251 operation nand flash K9F6408 can correct rub, writing and reading. Other chip switch, a similar manner, the attention on the timing of the tri