Pinout is Vcc, GND, Tx, Rx. Vcc is the square pad, Rx and Tx as seen from the N12E soc. Port runs at 38400 bps.
Here's the bootup messages, just in case anyone is interested.
$ cu -l ttyUSB0 -s 38400
Connected.
========== SPI =============
SDRAM CLOCK:156MHZ
------------------------- Force into Single IO Mode ------------------------
|No chipID Sft chipSize blkSize secSize pageSize sdCk opCk chipName |
| 0 c22016h 0h 400000h 10000h 1000h 100h 86 39 MX25L3205D/E|
----------------------------------------------------------------------------
Set 8196C PHY Patch OK
---RealTek(RTL8196C)at 2013.12.09-17:34+0800 version v1.1f [16bit](390MHz)
####return_addr: 0x05010000, root_bin_offset: 0x050dd012
Jump to image start=0x80500000...
decompressing kernel:
Uncompressing Linux... done, booting the kernel.
done decompressing kernel.
start address: 0x80003600
RTL8192C/RTL8188C driver version 1.6 (2011-07-18)
Probing RTL8186 10/100 NIC-kenel stack size order[2]...
chip name: 8196C, chip revid: 4
NOT YET
eth0 added. vid=9 Member port 0x10...
eth1 added. vid=8 Member port 0x1...
eth2 added. vid=9 Member port 0x2...
eth3 added. vid=9 Member port 0x4...
eth4 added. vid=9 Member port 0x8...
[peth0] added, mapping to [eth1]...
init started: BusyBox v1.13.4 (2014-09-18 18:08:32 CST)
##flash.c free apmib ##
Init Start...
wan_disconnect: option all
##system/sysconf.c free apmib ##
##flash.c free apmib ##
===== Set parameter for BSMI test=====
Init bridge interface...
wait for bridge initialization...
syslog will use 64KB for log(7 rotate, 1 original, 8KB for each)
route: SIOCDELRT: No such process
route: SIOCADDRT: Invalid argument
Init Start...
Init Wlan application...
##flash.c free apmib ##
##flash.c free apmib ##
update wps state to -1
WiFi Simple Config v2.9-wps2.0 (2014.09.18-10:09+0000).
Init Wlan application...
##flash.c free apmib ##
##flash.c free apmib ##
update wps state to -1
WiFi Simple Config v2.9-wps2.0 (2014.09.18-10:09+0000).
Register to wlan0
iwcontrol RegisterPID to (wlan0)
Register to wlan0
##system/sysconf.c free apmib ##
iwcontrol RegisterPID to (wlan0)
Init Firewall Rules....
firewall clean prerouting
firewall add iptables rule
No wan ip currently!
System TZ ENV = GMT-8
##system/sysconf.c free apmib ##
start infosvr
WLAN0_WLAN_DISABLED=0 ##flash.c free apmib ##
sh: ##flash.c: unknown operand
# Start httpd!
Start wanduck!
# <-- :-="" a="" b="" here="" rootshell="" s="">
MemTotal: 11144 kB
MemFree: 5164 kB
Buffers: 224 kB
Cached: 1128 kB
SwapCached: 0 kB
Active: 1672 kB
Inactive: 716 kB
Active(anon): 1036 kB
Inactive(anon): 0 kB
Active(file): 636 kB
Inactive(file): 716 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 1044 kB
Mapped: 716 kB
Slab: 3064 kB
SReclaimable: 176 kB
SUnreclaim: 2888 kB
PageTables: 164 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 5572 kB
Committed_AS: 2220 kB
VmallocTotal: 1048404 kB
VmallocUsed: 264 kB
VmallocChunk: 1048136 kB
# cat /proc/cpuinfo
system type : RTL8196C
processor : 0
cpu model : 52481
BogoMIPS : 389.12
tlb_entries : 32
mips16 implemented : yes
# busybox
BusyBox v1.13.4 (2014-09-18 18:08:32 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:
arp, ash, bunzip2, bzcat, cat, cp, cut, date, echo, expr, false,
free, grep, gzip, halt, head, hostname, ifconfig, init, ip, kill,
killall, klogd, ln, ls, mkdir, mount, ping, poweroff, ps, reboot,
renice, rm, route, sh, sleep, sync, syslogd, tail, telnetd, top,
true, umount, vconfig, wc, zcip
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