Smart210刷Uboo镜像到SD卡

http://www.eefocus.com/marianna/blog/13-08/296604_ef4b2.html
Linux系统使用fdisk/dd命令替代SD-Flasher

给SD分区，使用PM9或都fdisk都可以，fdisk参考上面文章，经实践SD卡都可以，20~30块钱的C2, C4卡完全可以使用，友善淘宝上买100块的卡太吭了，性好没买，在家随便找了个C2的卡也可以正常使用，速度还很快，毕竟Uboot.bin或者SuperBoot.bin就那么小，不会卡的。而且linux完全可以笔记本自代的读卡器，不用再买读卡器了，SD-Flasher在XP下完全不认识笔记本自代的SD读卡器。

分区时前面留下空白空间不要使用，这部分空间用来烧写UBoot.bin或者SuperBoot.bin. 大小大概50M左右吧，不放心就留100M吧。剩下的分一个fat32分区。

查看设备及分区情况

sudo fdisk -l

Disk /dev/mmcblk0: 7948 MB, 7948206080 bytes
255 heads, 63 sectors/track, 966 cylinders, total 15523840 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

        Device Boot      Start         End      Blocks   Id  System
/dev/mmcblk0p1           96390    15502724     7703167+   b  W95 FAT32

镜像写入SD卡：

sudo dd iflag=dsync oflag=dsync if=Superboot21.bin of=/dev/mmcblk0 seek=1
sync

注意我的SD设备是/dev/mmcblk0，注意查看fdisk -l显示及磁盘大小，别搞错了，把自己硬盘分了就完蛋了。

同样可以写入UBoot

sudo dd iflag=dsync oflag=dsync if=tiny210v2-uboot.bin of=/dev/mmcblk0 seek=1

sync

写完后SD插入Smart210，切换从SD卡启动

Rset或者断电再上电，就可以从mimicom访问Uboot了

显示：

BL1 Ver:1307020
Start cp
Running!
K

U-Boot 2013.01-rc2-g5654154-dirty (Sep 08 2013 - 22:53:59) for TINY210(Nand:K9G)

CPU:    S5PC110@1000MHz

Board:   FriendlyARM-TINY210
DRAM:  512 MiB
WARNING: Caches not enabled

PWM Moudle Initialized.
GPD0CON  : 1111, GPD0DAT  : e
NAND:  512 MiB
MMC:   SAMSUNG SD/MMC: 0, SAMSUNG SD/MMC: 1
*** Warning - bad CRC, using default environment

In:    serial                                                                  
Out:   serial                                                                  
Err:   serial                                                                  
Net:   dm9000                                                                  
checking mode for fastboot ...                                                 
fastboot_preboot() = 0                                                         
checking mode for fastboot ...                                                 
Hit any key to stop autoboot:  0                                               
[Ver130726-TINY210v2]＃

进入UBoot命令行,输入： printenv

显示：

[Ver130726-TINY210v2]#                                                         
baudrate=115200                                                                
bootcmd=nand read C0008000 100000 500000; bootm C0008000                       
bootdelay=3                                                                    
ethact=dm9000                                                                  
ethaddr=00:40:5c:26:0a:5b                                                      
gatewayip=192.168.1.1                                                          
ipaddr=192.168.1.230                                                           
netmask=255.255.255.0                                                          
serverip=192.168.1.229                                                         
stderr=serial                                                                  
stdin=serial                                                                   
stdout=serial                                                                  
                                                                               
Environment size: 279/16380 bytes

UBoot镜像从这里获取：http://www.arm9home.net/read.php?tid-80476.html

或者附件中的也可以。

自己以前玩过都不记得了， 再把板子拿出玩，搜索发现了自己写已经刷过uboot了

另外我又找了一新版本的：http://blog.csdn.net/liukun321/article/details/7422627