为什么我烧写了光盘的u-boot还是出错？

学完1,2期看_UBOOT移植&LINUX移植&驱动移植/毕业班第2课第3.1节_移植最新u-boot之修改代码之建新板_时钟_SDRAM_UART课程
OpenJTAG>
OpenJTAG> u*** 1 30000000
USB host is not connected yet.
USB host is connected. Waiting a download.

Now, Downloading [ADDRESS:30000000h,TOTAL:472874]
RECEIVED FILE SIZE: 472874 (461KB/S, 1S)
OpenJTAG> protect off all
Un-Protect Flash Bank # 1
OpenJTAG> erase 0 7ffff
Error: start address not on sector boundary
OpenJTAG>

查到有人发过帖子，说解决杨浦两个方法：一：修改norflash的设置，二：烧写光盘配套的uboot

我烧写了光盘的u-boot还是一样，现在不知道是我烧写错了，还是啥，应该没烧写错啊

乔占宽

2019-8-30 06:43:35

OpenJTAG> mtd

device nand0 , # parts = 4
#: name                      size          offset       mask_flags
0: bootloader       0x00040000    0x00000000    0
1: params             0x00020000    0x00040000    0
2: kernel             0x00200000    0x00060000    0
3: root             0x0fda0000    0x00260000    0

active partition: nand0,0 - (bootloader) 0x00040000 @ 0x00000000

defaults:
mtdids  : nand0=nandflash0
mtdparts: mtdparts=nandflash0:256k@0(bootloader),128k(params),2m(kernel),-(root)