收到一个便携3G路由器的线路板

5.5 cm * 5cm  带usb , rj45 ,wifi,串口

RT5350F芯片  32M RAM   2M rom

ttl串口 ,绿色靠近网口为地,中间靠近ROM的8腿的tx, 第三条靠近rom4腿的rx,速率57600

2针是电源, 靠近天线的是Vcc, 5V

 

# cat /proc/cpuinfo                                                            
system type             : Ralink SoC                                           
processor               : 0                                                    
cpu model               : MIPS 24K V4.12                                       
BogoMIPS                : 239.61                                               
wait instruction        : yes                                                  
microsecond timers      : yes                                                  
tlb_entries             : 32                                                   
extra interrupt vector  : yes                                                  
hardware watchpoint     : yes                                                  
ASEs implemented        : mips16 dsp                                           
VCED exceptions         : not available                                        
VCEI exceptions         : not available

# cat /proc/partitions                                                         
major minor  #blocks  name                                                     
                                                                               
  31     0       4096 mtdblock0                                                
  31     1        192 mtdblock1                                                
  31     2         64 mtdblock2                                                
  31     3         64 mtdblock3                                                
  31     4       3776 mtdblock4

# free
              total         used         free       shared      buffers
  Mem:        29012        15904        13108            0            0
 Swap:            0            0            0
Total:        29012        15904        13108

rootfs / rootfs rw 0 0                                                         
proc /proc proc rw 0 0                                                         
none /var ramfs rw 0 0                                                         
none /etc ramfs rw 0 0                                                         
none /tmp ramfs rw 0 0                                                         
none /media ramfs rw 0 0                                                       
none /sys sysfs rw 0 0                                                         
none /dev/pts devpts rw 0 0                                                    
none /proc/bus/usb usbfs rw 0 0                                                
mdev /dev ramfs rw 0 0                                                         
devpts /dev/pts devpts rw 0 0



#ifconfig
br0       Link encap:Ethernet  HWaddr 80:B1:5D:00:12:a0 
          inet addr:192.168.2.1  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

eth2      Link encap:Ethernet  HWaddr 80:B1:5D:00:12:a1 
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:3

eth2.1    Link encap:Ethernet  HWaddr 80:B1:5D:00:12:a1 
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

eth2.2    Link encap:Ethernet  HWaddr 80:B1:5D:00:12:a1 
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

ra0       Link encap:Ethernet  HWaddr 80:B1:5D:00:12:a0 
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:4

# ps
  PID USER       VSZ STAT COMMAND
    1 admin     1700 S    init 
    2 admin        0 SWN  [ksoftirqd/0]
    3 admin        0 SW<  [events/0]
    4 admin        0 SW<  [khelper]
    5 admin        0 SW<  [kthread]
   30 admin        0 SW<  [kblockd/0]
   33 admin        0 SW<  [khubd]
   47 admin        0 SW<  [kswapd0]
   48 admin        0 SW   [pdflush]
   49 admin        0 SW   [pdflush]
   50 admin        0 SW<  [aio/0]
  677 admin        0 SW   [mtdblockd]
  702 admin     1364 S    nvram_daemon
  703 admin     1816 S    goahead
  705 admin     1696 S    telnetd
  707 admin     1708 S    /bin/sh
  843 admin        0 SW   [RtmpCmdQTask]
  844 admin        0 SW   [RtmpWscTask]
 1008 admin     1220 S    dnsmasq
 1149 admin     1704 S    syslogd -C8
 1152 admin     1696 S    klogd
 1181 admin     1700 R    ps

# busybox
BusyBox v1.12.1 (2011-09-14 10:53:05 CST) multi-call binary
Copyright (C) 1998-2008 Erik Andersen, Rob Landley, Denys Vlasenko
and others. Licensed under GPLv2.
See source distribution for full notice.

Usage: busybox [function] [arguments]...
   or: function [arguments]...

        BusyBox is a multi-call binary that combines many common Unix
        utilities into a single executable.  Most people will create a
        link to busybox for each function they wish to use and BusyBox
        will act like whatever it was invoked as!

Currently defined functions:
        [, [[, ash, basename, brctl, cat, chmod, chpasswd, cp, cut, date,
        echo, eject, expr, find, free, grep, halt, hostname, ifconfig, init,
        init, insmod, kill, killall, klogd, logger, login, logread, ls, lsmod,
        mdev, mkdir, mknod, mount, ping, poweroff, printf, ps, pwd, reboot,
        rm, rmmod, route, sed, sh, sleep, syslogd, telnetd, test, tftp, top,
        touch, umount, uptime, vconfig, vi, wc