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tms320c6747 nandflash boot issue

Other Parts Discussed in Thread: TMS320C6747

I  want to boot program from nandflash  when I use the tms320c6747 chip,however I don't success. 

I am used the AISGen for D800K003 tool to produce 'xxx.bin' file.the tool config as follow picture.

then I write into nandflash block 1(using the c6747 bootloader refer to).   The program cannot boot.

the pinmux config and hardware is doesnot wrong.

And anything I doesnot do ? I don't  know what to the nandflash block 0 ,do I have to write bootloader load into the block 0,then start the program by its.

I don't know to write the bootloader if this,can you give me the code or tell me how to write?

thank you.