裸奔程序RdNF2SDRAM没有做坏块处理，会出错，有做好处理的代码吗？

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Dnw选择命令9格式化的时候：

Erasing at 0x0 --   0lete.
Erasing at 0xa0000 --   1complete.
Erasing at 0x144000 --   2 complete.
  ........   //ok  字数限制，被我删除
Erasing at 0xd70000 --  21 complete.
Erasing at 0xe14000 --  22 complete.
Erasing at 0xeb8000 --  23 complete.
Erasing at 0xf5c000 --  24 complete.
Erasing at 0xffc000 --  25 complete.
Erasing at 0x10a0000 --  26

NAND 64MiB 3,3V 8-bit: MTD Erase failure: -5


Erasing at 0x1144000 --  27
Erasing at 0x11e8000 --  28
Erasing at 0x128c000 --  29
Erasing at 0x1330000 --  30
Erasing at 0x13d4000 --  31
  ........   //ok  字数限制，被我删除
Erasing at 0x3f5c000 --  99
Erasing at 0x3ffc000 -- 100OK


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Dnw下载20M大小的程序的时候：
Now, Downloading [ADDRESS:30000000h,TOTAL:19955426]

RECEIVED FILE SIZE:19955426 (811KB/S, 24S)


NAND erase: device 0 offset 0x0, size 0x1308000


Erasing at 0x0 --   0lete.
Erasing at 0x30000 --   1complete.
Erasing at 0x60000 --   2complete.
Erasing at 0x90000 --   3complete.
Erasing at 0xc0000 --   4complete.
  ........   //ok  字数限制，被我删除
Erasing at 0xea4000 --  77 complete.
Erasing at 0xed8000 --  78 complete.
Erasing at 0xf08000 --  79 complete.
Erasing at 0xf38000 --  80 complete.
Erasing at 0xf68000 --  81 complete.
Erasing at 0xf98000 --  82 complete.
Erasing at 0xfc8000 --  83 complete.
Erasing at 0xffc000 --  84 complete.
Erasing at 0x102c000 --  85
Erasing at 0x105c000 --  86
Erasing at 0x108c000 --  87
Erasing at 0x10bc000 --  88
Erasing at 0x10f0000 --  89ipping bad block at  0x010f4000                                           


Erasing at 0x1120000 --  90
Erasing at 0x1150000 --  91
Erasing at 0x1180000 --  92
Erasing at 0x11b0000 --  93
Erasing at 0x11e0000 --  94
Erasing at 0x1214000 --  95
Erasing at 0x1244000 --  96
Erasing at 0x1274000 --  97
Erasing at 0x12a4000 --  98
Erasing at 0x12d4000 --  99
Erasing at 0x1304000 -- 100K


NAND write: device 0 offset 0x0, size 0x1308000



Writing data at 0x0 --   0 complete.
Writing data at 0x30a00 --   1
Writing data at 0x61600 --   2
Writing data at 0x92200 --   3
Writing data at 0xc2e00 --   4
........   //ok  字数限制，被我删除
Writing data at 0xe76a00 --  76.
Writing data at 0xea7600 --  77.
Writing data at 0xed8200 --  78.
Writing data at 0xf08e00 --  79.
Writing data at 0xf39800 --  80.
Writing data at 0xf6a400 --  81.
Writing data at 0xf9b000 --  82.
Writing data at 0xfcbc00 --  83.
Writing data at 0xffc600 --  84.
Writing data at 0x102d200 --  85e.
Writing data at 0x105de00 --  86e.
Writing data at 0x108ea00 --  87e.
Writing data at 0x10bf400 --  88e.
Writing data at 0x10f0000 --  89e.
Bad block at 0x10f4000 in erase block from 0x10f4000 will be skipped


Writing data at 0x1124c00 --  90e.
Writing data at 0x1155800 --  91e.
Writing data at 0x1186200 --  92e.
Writing data at 0x11b6e00 --  93e.
Writing data at 0x11e7a00 --  94e.
Writing data at 0x1218600 --  95e.
Writing data at 0x1249000 --  96e.
Writing data at 0x1279c00 --  97e.
Writing data at 0x12aa800 --  98e.
Writing data at 0x12db400 --  99e.
Writing data at 0x130be00 -- 100e.

19955712 bytes written: OK



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所以tq2440的裸奔程序

void RdNF2SDRAM( )

{

        U32 i;

        U32 start_addr = 0x0;

        unsigned char * to = (unsigned char *)0x30000000;

        U32 size = 0x2000000;     //0x100000; 这里被我改成读取20 M

       

         

       

        rNF_Init();

        switch(rNF_ReadID())

        {

                case 0x76:

                        for(i = (start_addr >> 9); size > 0; )

                        {

                                rSB_ReadPage(i, to);

                                size -= 512;

                                to += 512;

                                i ++;

                        }

                        break;

                case 0xf1:

                case 0xda:

                case 0xdc:

                case 0xd3:

                        for(i = (start_addr >> 11); size > 0; )

                        {

                                rLB_ReadPage(i, to);

                                size -= 2048;

                                to += 2048;

                                i ++;

                        }

                        break;

        }

}               

//----运行我的程序出现的现象就是 最后几张图片变形了

我的问题是：

我可以认为是这个RdNF2SDRAM程序确实是因为没有做坏块判断所以会导致出错？

谢谢各位的讨论