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nor flash方式启动后,为什么没有反映?

ease visit http://www.ucdragon.com for more detailsnor flash boot, read id is : 0x278200bfsst39vf160 foundplease select function : 0 : usb download file1 : uart download file2 : write nand flash with download file3 : load pragram from nand flash and run4 : erase nand flash regions5 : write nor flash with download file6 : set boot params7 : test power offread chip id = ec76nand flash status = c0set boot params = root=/dev/mtdblock2 load_ramdisk=0 init=/linuxrc console=ttys0 mem=64m devfs=mount我以nor f