JUPITER ----UCLINUX TCP/IP开发板的使用
1. 国产普及型开发板的的照片，是对韩国原板的改进，功能一样。
2. 板上配置：
l CPU –韩国ADC公司的JUPITER 50MHz 32BIT RISC
l 的所有口线从芯片四周引出，方便二次开发。
l 板上带有2个LXT971A（PHY）组成的10/100M以太网RJ-45接口。
l 16针彩色STN LCD接口。由转接线/板接不同接口的LCD。
SDRAM 16M BYTE 数据线宽32位 或8M BYTE 数据线宽16位，旁边有跳线选择。
l FLASH-AT29C040/28SF040 512KBYTE 或 EPROM 27C801 1M BYTE，可以用跳线选择。芯片旁边有说明。
l 双串口，配1个串口延长线。
l 输入5V电源，板上变为3.3V
l 板上有22-28V的LCD可调电源变换器。
l 板上有启动配置跳线。初始化FLASH/EPROM的数据线宽度，缺省8位。
l 板上有5X6的键盘。
3. 如何配置板上的跳线？
SDRAM设为16位，JP13：1-2
ROM设为8位，JP32：1-2，JP33：1-2。
PLL使能，JP37：2-3
这是板上的设置。
4. 开发板的使用步骤，怎样跑UCLINUX操作系统。
首先连接好硬件。如下图：注意串口线连接是：开发板的COM1连接到PC的COM0
1. 用一片29C040，烧seloader.bin文件，其实板上带了一片。该文件在\Jupiter\uclinux\seloader-jupiter-030221\forJupiter\seloader\src目录
2. 把JUPITER的COM1口连PC的COM0，启动超级终端（波特率：38400，流控：无）。
并把JUPITER网口0连到内部网上。这是应该在超级终端窗口中看到如下信息：
=====================================================================
seloader is se3208 Boot Loader
Copyright (C) 2002 ad chips.
seloader comes with ABSOLUTELY NO WARRANTY; Read the GNU GPL for details.
=====================================================================
Autoboot aborted
Type "help" to get a list of commands
seloader>
3. 在PC上安装并运行两个服务程序dhcp1816和tftpd。程序在光盘的E:\Jupiter\uclinux\win服务程序目录。
3. 设置dhcp1816:
Bootp sever configuration
Option->add
static address entry: Set the Hardware address by
"00:01:23:45:67:00".
At the
IP address, first three octet must be same with server IP address and last
octet
can be
anyone.
设置完后自动启动，在状态栏中显示：listening on port
67
4. 设置TFTPD：设置tftpd->configure->home directory: 为:“\linux\uclinux-eiscdownload bak\tftpserver”,在这目录里存放了linux.bin,rdgz.bin文件用于tftp网络下载。然后tfptd->start,在状态栏里显示：server is running
5. 软件设置完后，在超级终端中，执行：bootp命令。显示：
seloader> bootp
Our Ethernet address is 0001 2345 6700.
Sending bootp packet...
bh_opcode : 2, htype : 1, hlen : 6 tid : 1007616006, chaddr : 0:1:23:45:67:0
len => 300, client IP => A8C00000 host IP => A8C00300
bh_opcode : 2, htype : 1, hlen : 6 tid : 1007616006, chaddr : 0:1:23:45:67:0
len => 300, client IP => A8C00000 host IP => A8C00300
Bootp Packet received.
Host (server) Ethernet : 0000 B458 1526
Host (server) IP : *,.((.0.2
Client (target) Ethernet : 0001 2345 6700
Client (target) IP : *,.((.0.3
6. 执行tftp下载linux.bin 显示：
seloader> tftp linux.bin kernel
TFTP Start...
Host (server) IP : *,.((.0.2
Client (target) IP : *,.((.0.3
Loading Filename : linux.bin
Save Address : 0x0C200000
Loading start...
0x000A0258 (655960) bytes received.
tftp done.
7. 执行tftp下载rdgz.bin 显示：
seloader> tftp rdgz.bin ramdisk
TFTP Start...
Host (server) IP : *,.((.0.2
Client (target) IP : *,.((.0.3
Loading Filename : rdgz.bin
Save Address : 0x0C500000
Loading start...
0x000715C9 (464329) bytes received.
tftp done.
8. 执行boot 启动uclinux
会有一大堆信息显示：不看也可以
seloader> boot
Starting kernel ...
in head-se3208.S
Linux version 2.4.20-uc0 (administrator@ZENGYU-X14PHIPI) (gcc version egcs-2.91.
66 19990314 (egcs-1.1.2 release)) #1 Thu Apr 10 15:43:30 2003
Architecture: eisc-jupiter
On node 0 totalpages: 1536
zone(0): 0 pages.
zone(1): 1536 pages.
BUG: wrong zone alignment, it will crash
zone(2): 0 pages.
Kernel command line: root=/dev/ram0
Calibrating delay loop... 33.07 BogoMIPS
Memory: 6MB = 6MB total
Memory: 5256KB available (572K code, 210K data, 28K init)
Dentry cache hash table entries: 1024 (order: 1, 8192 bytes)
Inode cache hash table entries: 512 (order: 0, 4096 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: 2048 (order: 1, 8192 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
jupiter keypad driver initialized
dmc9512 touch screen driver initialized
jupiter_eth.c : v1.00 9/10/2002 eduarmy
Jupiter Ethernet 0 probe
Jupiter Ethernet1 failed 01 : Wrong Addr, eth1 is 1f03600
Jupiter Ethernet1 03 : eth1 is 1f03600
jupiter_eth1.c : old v1.00 9/10/2002 eduarmy
Jupiter Ethernet1 tx_fd_initialize eth1 is 1f03600 c2c8208
Jupiter Ethernet1 rx_fd_initialize eth1 is 1f03600 c2c5208
Jupiter Ethernet 1 probe
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)
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 512 bind 512)
RAMDISK: Compressed image found at block 0
Freeing initrd memory: 700K
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
VFS: Mounted root (ext2 filesystem).
Freeing init memory: 28K
Shell invoked to run file: /etc/rc
Command: hostname jupiter
Command: mount -t proc proc /proc
Command: cat /etc/motd
================================================================
Welcome to
____ _ _
/ __| ||_|
_ _| | | | _ ____ _ _ _ _
| | | | | | || | _ \| | | |\ \/ /
| |_| | |__| || | | | | |_| |/ \
| ___\____|_||_|_| |_|\____|\_/\_/
| |
|_| for EISC Chips !!!!
For further information check:
http://www.adc.co.kr/
================================================================
Command: ifconfig eth0 192.168.0.3
Command: ifconfig eth1 up
Command: ifconfig eth1 192.168.10.3
Command: route add default gw 192.168.0.2
Command: ifconfig lo 127.0.0.1
Command: route add -net 127.0.0.0 netmask 255.0.0.0 lo
Command: #dhcpcd -p -a eth0 &
Execution Finished, Exiting
Sash command shell (version 1.1.1),(pgid: 14)
/> ps 查看进程
PID PORT STAT SIZE SHARED %CPU COMMAND
1 37K 0K 53.2 init
2 0K 0K 0.0 keventd
3 0K 0K 0.0 ksoftirqd_CPU0
4 0K 0K 0.0 kswapd
5 0K 0K 0.0 bdflush
6 0K 0K 0.0 kupdated
14 71K 0K 4.3 /bin/sh
15 38K 0K 2.3 /bin/inetd
16 135K 0K 4.6 /bin/boa -c /home
/>
9. 用PC上的IE浏览器去访问http://192.168.0.3，这是JUPITER的IP地址，显示：
