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c6747 16bit NANDFLASH烧写问题

Other Parts Discussed in Thread: OMAP-L137

运行TI提供的OMAPL137FlashAndBootUtils_2_40里面的NANDWrite_DSP.out 程序,打印出来

ERROR:NAND Initialization failed.

请问一般都是什么原因造成上面的问题?

谢谢!

注:同样类型的FLASH芯片和DSP以及同样的程序在另一块板子上就可以烧写成功,但在这块板子上就出现上面的问题。