Hello
I want to establish 2-way communication between my PC and TP-Link TL-WR741ND router.
I can send from the router to my PC using command:
echo -e -n "\x9B ....." /dev/ttyS0
and it works fine.
Now I want to send data from my PC and receive it on my Router
I tried cat but doesn't work:

stty 115200 < /dev/ttyS0 #Set the baud rate
cat /dev/ttyS0 > a.txt  #Copy the received data from ttyS0 to file a.txt

Any suggestions?

(Last edited by eng.hassan23 on 4 Mar 2012, 13:50)

Hello
I found that setserial and stty are not supported on my device. How to enable them?
Backfire 10.03.1
Thanks

stty in package "coreutils"
setserial in package "setserial"

I am newbie,
How to install these two packages?

OPKG Package Manager - OpenWrt Wiki

I installed the packages and I receive data but wrong...strange symbols
Are these configurations correct?

stty 115200 cs8 -parenb -cstopb sane -echo -echok -icrnl -ixon -icanon -opost -onlcr time 1 min 0 < /dev/ttyS0

root@OpenWrt:~# setserial -a /dev/ttyS0
/dev/ttyS0, Line 0, UART: 16550A, Port: 0x0000, IRQ: 11
        Baud_base: 10937500, close_delay: 50, divisor: 0
        closing_wait: 3000
        Flags: spd_normal skip_test

root@OpenWrt:~# stty -F /dev/ttyS0
speed 115200 baud; line = 0;
min = 0; time = 1;
-icrnl
-opost -onlcr
-icanon -echo -echok

**********

What is baud_base?

Devices Specs:
Baud Rate: 115200
I send HEX Data
8 bits, one stop bit, no parity

Thanks

root@OpenWrt:~# stty -a
speed 38400 baud; rows 24; columns 80; line

= 0;
intr = ^C; quit = ^\; erase = ^?; kill =

^U; eof = ^D; eol = <undef>;
eol2 = <undef>; swtch = <undef>; start =

^Q; stop = ^S; susp = ^Z; rprnt = ^R;
werase = ^W; lnext = ^V; flush = ^O; min =

1; time = 0;
-parenb -parodd cs8 -hupcl -cstopb cread -

clocal -crtscts
-ignbrk -brkint -ignpar -parmrk -inpck -

istrip -inlcr -igncr icrnl ixon -ixoff
-iuclc -ixany -imaxbel
opost -olcuc -ocrnl onlcr -onocr -onlret -

ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0
isig icanon iexten echo echoe echok -echonl

-noflsh -xcase -tostop -echoprt
echoctl echoke

OpenWrt / Tp-link Tl-wr703n GPIO via tx/rx

Let me give you 5 stars rating!
That's work!

Hey can you post your codes after it started to work? would be much appreciated