lumit-uclinux-readme.txt

关于s3c4510数据手册的资料以及lumit bootloader有关知识文章

uClinux boot User Guide for lumit4510 : how to boot uClinux kernel

说明： 本小节内容是关于如何在 bootloader 的基础上，启动 uClinux 

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Step 1:
1、通过 help 可以看到 
\>help
help	------	show help
?	------	= help
load	------	load file to memory
prog	------	program flash
boot	------	boot from flash
ap	------	auto load image flie and program flash
copy	------	copy flash from src to dst address
ipcfg	------	show or set IP address
dn	------	ev-7t bootloader download
go	------	Go at 0x8000

2、执行 ipcfg 获得开发板的 ip 地址 (缺省即 192.168.168.101)
\>ipcfg
IP address : 192.168.168.101
\>


Step 2:
1、下载 http://www.lumit.org/download/tools/tftp.exe
2、下载 http://www.lumit.org/download/software/image.ram.rar
3、解压缩 image.ram.rar 获得 image.ram ，该文件就是 uClinux kernel image

Step 3:
1、修改设置 pc 主机的ip地址为 192.168.168.100 
2、使用开发套件中的“网络对连线”连接 pc 主机的网口和 lumit 4510 开发板的网口
3、此时应该看到 D1, D2 led 亮了，说明网络连接正常

Step 4:
1、在开发板上执行 load 命令，表示从网络下载内核
\>load
No begin address for download, use default address 0x8000
Mini TFTP Server 1.0 (IP : 192.168.168.101 PORT: 69)
Load image file from host
Type tftp -i 192.168.168.101 put filename at the host PC
Press ESC key to exit

2、此时开发板开始等待主机发送 image.ram 

3、在 pc 主机上刚才 Step 2 的下载目录中输入 tftp -i 192.168.168.101 put image.ram
c:\temp>tftp -i 192.168.168.101 put image.ram
Transfer successful: 1563584 bytes in 3 seconds, 521194 bytes/s

4、最后一行表示通过 tftp 传输成功，下载 uClinux kernel 完毕

5、此时在开发板上输入 ESC 键，表示退出传输模式

6、开发板显示 \> 提示符，重新又回到 bootloader 的 Shell 中
\>load
No begin address for download, use default address 0x8000
Mini TFTP Server 1.0 (IP : 192.168.168.101 PORT: 69)
Load image file from host
Type tftp -i 192.168.168.101 put filename at the host PC
Press ESC key to exit

\>

7、此时执行 go 命令，开始运行 uClinux Kernel image

8、uClinux Kernel 开始输出，并进入到 uClinux 的 Sash 中
\>go
go at address 0x8000 
Linux version 2.4.22-uc0 (root@dailzh) (gcc version 2.95.3 20010315 (release)(ColdFire patches - 20010318 from http://fiddes.net/coldfire/)(uClinux XIP and shared lib patches from http://www.snapgear.com/)) #24  17 18:54:45 CST 2003
Processor: Samsung S3C4510B revision 6
Architecture: SNDS100
On node 0 totalpages: 4096
zone(0): 0 pages.
zone(1): 4096 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/rom0
Calibrating delay loop... 49.76 BogoMIPS
Memory: 16MB = 16MB total
Memory: 14512KB available (1454K code, 156K data, 40K init)
Dentry cache hash table entries: 2048 (order: 2, 16384 bytes)
Inode cache hash table entries: 1024 (order: 1, 8192 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 4096 (order: 2, 16384 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Samsung S3C4510 Serial driver version 0.9 (2001-12-27) with no serial options enabled
ttyS00 at 0x3ffd000 (irq = 5) is a S3C4510B
ttyS01 at 0x3ffe000 (irq = 7) is a S3C4510B
Blkmem copyright 1998,1999 D. Jeff Dionne
Blkmem copyright 1998 Kenneth Albanowski
Blkmem 1 disk images:
0: C4358-17DB57 [VIRTUAL C4358-17DB57] (RO)
RAMDISK driver initialized: 16 RAM disks of 1024K size 1024 blocksize
Samsung S3C4510 Ethernet driver version 0.1 (2002-02-20) <[e-mail]>
eth0: 00:40:95:36:35:34 
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 1024 bind 1024)
VFS: Mounted root (romfs filesystem) readonly.
Freeing init memory: 40K
Shell invoked to run file: /etc/rc
Command: hostname Samsung
Command: /bin/expand /etc/ramfs.img /dev/ram0
Command: /bin/expand /etc/ramfs2048.img /dev/ram1
Command: mount -t proc proc /proc
Command: mount -t ext2 /dev/ram0 /var
Command: mount -t ext2 /dev/ram1 /ramdisk
Command: chmod 777 /ramdisk
Command: mkdir /var/config
Command: mkdir /var/tmp
Command: mkdir /var/log
Command: mkdir /var/run
Command: mkdir /var/lock
Command: ifconfig lo 127.0.0.1
Command: route add -net 127.0.0.0 netmask 255.255.255.0 lo
Command: ifconfig eth0 192.168.168.101 netmask 255.255.255.0 up
Command: cat /etc/motd
Welcome to
          ____ _  _
         /  __| ||_|                 
    _   _| |  | | _ ____  _   _  _  _ 
   | | | | |  | || |  _ \| | | |\ \/ /
   | |_| | |__| || | | | | |_| |/    \
   |  ___\____|_||_|_| |_|\____|\_/\_/
   | |
   |_|

For further information check:
http://www.uclinux.org/

Execution Finished, Exiting

Sash command shell (version 1.1.1)
/> 

9、进入 /bin 目录，执行下面的应用程序，例如 ping/telnet/ftp/mount 等
例如：
/> cd bin
/bin> ping 192.168.168.100
PING 192.168.168.100 (192.168.168.100): 56 data bytes
64 bytes from 192.168.168.100: icmp_seq=0 ttl=128 time=0.0 ms
64 bytes from 192.168.168.100: icmp_seq=2 ttl=128 time=0.0 ms
64 bytes from 192.168.168.100: icmp_seq=3 ttl=128 time=0.0 ms
64 bytes from 192.168.168.100: icmp_seq=4 ttl=128 time=0.0 ms
64 bytes from 192.168.168.100: icmp_seq=5 ttl=128 time=0.0 ms
64 bytes from 192.168.168.100: icmp_seq=6 ttl=128 time=0.0 ms
64 bytes from 192.168.168.100: icmp_seq=7 ttl=128 time=0.0 ms
64 bytes from 192.168.168.100: icmp_seq=8 ttl=128 time=0.0 ms
64 bytes from 192.168.168.100: icmp_seq=9 ttl=128 time=0.0 ms
64 bytes from 192.168.168.100: icmp_seq=10 ttl=128 time=0.0 ms

--- 192.168.168.100 ping statistics ---
11 packets transmitted, 11 packets received, 0% packet loss
round-trip min/avg/max = 0.0/0.0/0.0 ms
/bin> 

可以看出 pc 主机与开发板的连接正常

另外如果在 pc 主机端启动 telnet/ftp server，还可以测试 telnet/ftp 等应用。
可以自己测试一下，telnet 到自己的 pc 上看看目录文件什么的还是很好玩的。


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