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我是打算用WR703N来做wifi小车的，但TTL输出遇到了问题。我刷的是小标的固件：https://www.right.com.cn/forum/viewthread.php?tid=53729
我已经焊好了TTL线，用超级终端能看到启动信息，但是我用putty连到路由，输入echo "test" > /dev/ttyS0，终端没有显示“test”这几个字，我之前用DB120和RG100A测试，超级终端会显示“test”这几个字。请问WR703N这款路由和DB120等有什么不同？
另外比较奇怪的是，超级终端启动信息完了之后，按一下回车，居然登录了路由！
下面是启动信息：
U-Boot 1.1.4 (Sep 26 2011 - 11:13:45)
AP121-2MB (ar9330) U-boot
DRAM: 32 MB
led turning on for 1s...
id read 0x100000ff
flash size 4194304, sector count = 64
Flash: 4 MB
Using default environment
In: serial
Out: serial
Err: serial
Net: ag7240_enet_initialize...
No valid address in Flash. Using fixed address
No valid address in Flash. Using fixed address
: cfg1 0x5 cfg2 0x7114
eth0: 00:03:7f:09:0b:ad
ag7240_phy_setup
eth0 up
: cfg1 0xf cfg2 0x7214
eth1: 00:03:7f:09:0b:ad
athrs26_reg_init_lan
ATHRS26: resetting s26
ATHRS26: s26 reset done
ag7240_phy_setup
eth1 up
eth0, eth1
Autobooting in 1 seconds
## Booting image at 9f020000 ...
Uncompressing Kernel Image ... OK
Starting kernel ...
Linux version 2.6.39.4 (palmerxiaobiao@palmerxiaobiao-desktop) (gcc version 4.5.4 20110808 (prerelease) (Linaro GCC 4.5-2011.08) ) #1 Mon Oct 10 16:03:36 CST 2011
bootconsole [early0] enabled
CPU revision is: 00019374 (MIPS 24Kc)
SoC: Atheros AR9330 rev 1
Clocks: CPU:400.000MHz, DDR:400.000MHz, AHB:200.000MHz, Ref:25.000MHz
Determined physical RAM map:
memory: 02000000 @ 00000000 (usable)
Initrd not found or empty - disabling initrd
Zone PFN ranges:
Normal 0x00000000 -> 0x00002000
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
0: 0x00000000 -> 0x00002000
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128
Kernel command line: board=TL-WR703N console=ttyATH0,115200 rootfstype=squashfs,jffs2 noinitrd
PID hash table entries: 128 (order: -3, 512 bytes)
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
Writing ErrCtl register=00000000
Readback ErrCtl register=00000000
Memory: 29380k/32768k available (2009k kernel code, 3388k reserved, 385k data, 176k init, 0k highmem)
SLUB: Genslabs=9, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
NR_IRQS:80
Calibrating delay loop... 265.42 BogoMIPS (lpj=1327104)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
NET: Registered protocol family 16
MIPS: machine is TP-LINK TL-WR703N v1
bio: create slab <bio-0> at 0
Switching to clocksource MIPS
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
squashfs: version 4.0 (2009/01/31) Phillip Lougher
JFFS2 version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
msgmni has been set to 57
io scheduler noop registered
io scheduler deadline registered (default)
Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
ar933x-uart: ttyATH0 at MMIO 0x18020000 (irq = 11) is a AR933X UART
console [ttyATH0] enabled, bootconsole disabled
console [ttyATH0] enabled, bootconsole disabled
Atheros AR71xx SPI Controller driver version 0.2.4
m25p80 spi0.0: found s25sl032a, expected m25p80
m25p80 spi0.0: s25sl032a (4096 Kbytes)
Searching for RedBoot partition table in spi0.0 at offset 0x3e0000
Searching for RedBoot partition table in spi0.0 at offset 0x3f0000
No RedBoot partition table detected in spi0.0
spi0.0: no WRT160NL signature found
Creating 5 MTD partitions on "spi0.0":
0x000000000000-0x000000020000 : "u-boot"
0x000000020000-0x000000120000 : "kernel"
0x000000120000-0x0000003f0000 : "rootfs"
mtd: partition "rootfs" set to be root filesystem
mtd: partition "rootfs_data" created automatically, ofs=310000, len=E0000
0x000000310000-0x0000003f0000 : "rootfs_data"
0x0000003f0000-0x000000400000 : "art"
0x000000020000-0x0000003f0000 : "firmware"
ag71xx_mdio: probed
eth0: Atheros AG71xx at 0xb9000000, irq 4
Atheros AR71xx hardware watchdog driver version 0.1.0
TCP westwood registered
NET: Registered protocol family 17
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
VFS: Mounted root (squashfs filesystem) readonly on device 31:2.
Freeing unused kernel memory: 176k freed
input: gpio-keys-polled as /devices/platform/gpio-keys-polled/input/input0
Button Hotplug driver version 0.4.1
- preinit -
Press the [f] key and hit [enter] to enter failsafe mode
- regular preinit -
eth0: link up (100Mbps/Full duplex)
JFFS2 notice: (367) jffs2_build_xattr_subsystem: complete building xattr subsystem, 1 of xdatum (1 unchecked, 0 orphan) and 25 of xref (0 dead, 4 orphan) found.
switching to jffs2
- init -
eth0: link down
Please press Enter to activate this console. device eth0 entered promiscuous mode
eth0: link up (100Mbps/Full duplex)
br-lan: port 1(eth0) entering forwarding state
br-lan: port 1(eth0) entering forwarding state
Compat-wireless backport release: compat-wireless-2011-08-25
Backport based on wireless-testing.git master-2011-09-14
cfg80211: Calling CRDA to update world regulatory domain
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
cfg80211: World regulatory domain updated:
cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
ath: EEPROM regdomain: 0x0
ath: EEPROM indicates default country code should be used
ath: doing EEPROM country->regdmn map search
ath: country maps to regdmn code: 0x3a
ath: Country alpha2 being used: US
ath: Regpair used: 0x3a
ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
Registered led device: ath9k-phy0
ieee80211 phy0: Atheros AR9330 Rev:1 mem=0xb8100000, irq=2
cfg80211: Calling CRDA for country: US
PPP generic driver version 2.4.2
ip_tables: (C) 2000-2006 Netfilter Core Team
cfg80211: Regulatory domain changed to country: US
cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
NET: Registered protocol family 24
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ar71xx-ehci ar71xx-ehci: Atheros AR91xx built-in EHCI controller
ar71xx-ehci ar71xx-ehci: new USB bus registered, assigned bus number 1
ar71xx-ehci ar71xx-ehci: irq 3, io mem 0x1b000000
ar71xx-ehci ar71xx-ehci: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
nf_conntrack version 0.5.0 (461 buckets, 1844 max)
i2c /dev entries driver
usbcore: registered new interface driver cdc_acm
cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and ISDN adapters
usbcore: registered new interface driver usbserial
USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial Driver core
Linux video capture interface: v2.00
USB Serial support registered for GSM modem (1-port)
usbcore: registered new interface driver option
option: v0.7.2:USB Driver for GSM modems
gspca: v2.12.0 registered
usbcore: registered new interface driver zc3xx
device wlan0 entered promiscuous mode
br-lan: port 2(wlan0) entering forwarding state
br-lan: port 2(wlan0) entering forwarding state
device wlan0 left promiscuous mode
br-lan: port 2(wlan0) entering forwarding state
device wlan0 entered promiscuous mode
br-lan: port 2(wlan0) entering forwarding state
br-lan: port 2(wlan0) entering forwarding state
ar71xx-wdt: enabling watchdog timer
ar71xx-wdt: timeout=60 secs
BusyBox v1.18.5 (2011-10-10 15:38:46 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
ATTITUDE ADJUSTMENT (bleeding edge, r28387) ----------
* 1/4 oz Vodka Pour all ingredients into mixing
* 1/4 oz Gin tin with ice, strain into glass.
* 1/4 oz Amaretto
* 1/4 oz Triple sec
* 1/4 oz Peach schnapps
* 1/4 oz Sour mix
* 1 splash Cranberry juice
----------------------------------------------------- |
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