Serial to Ethernet

[dwienie]

I found a way to connect a serial device (my domotics system) to the WL500g deluxe and remotly control the domotics system over the ethernet.
I downloaded the ser2net program from sourceforge.net and cross compiled it for the Oleg firmware. Thanks to the very good tutorial from macsat. The ser2net program makes it possible to connect a serial device to the ethernet. It is all configurable by a .conf file. The serial device is connected to an USB to RS232 converter. I found here on this forum a driver for my converter that works with the Asus. The PL2303 driver.
You can install the necessary drivers with the following commands :
insmod usbserial.o
insmod pl2303.o
mknod /dev/ttyUSB0 c 188 0
chmod 666 /dev/ttyUSB0
In the ser2net config file you have to change the tty device to /dev/ttyUSB0
I attached the neccessary files for who is interested in it.

[vlad75]

This sounds very intresting!!! I will try it as soon as possible.

[vlad75]

The file seems to big to be able to flash?


[admin@(none) sbin]$ ls
post-boot ser2net
[admin@(none) sbin]$ flashfs save
tar: Removing leading '/' from member names
tmp/local/
tmp/local/etc/
tmp/local/etc/dropbear/
tmp/local/etc/dropbear/dropbear_dss_host_key
tmp/local/etc/dropbear/dropbear_rsa_host_key
tmp/local/sbin/
tmp/local/sbin/ser2net
flashfs commit
tmp/local/sbin/post-boot
tmp/local/root/
-rw-r--r-- 1 admin root 69779 Feb 21 20:14 /tmp/flash.tar.gz
Check saved image and type "/sbin/flashfs commit" to commit changes
[admin@(none) sbin]$ flashfs commit
/tmp/flash.tar.gz: File is to big (69779, max 65536)
[admin@(none) sbin]$


What can I do about it?

[dwienie]

I had the same problem but I have an USB flash disk where I installed the complete /OPT directory. See the tutorial from macsat for this.
So ser2net program runs on the USB flash disk.

[vlad75]

dwienie, is it possible to reduce the size of the file?

[dwienie]

I will try to compile an older version of Ser2Net, it seems that this is smaller.

[vsu]

$ file ser2net
ser2net: ELF 32-bit LSB MIPS-I executable, MIPS, version 1 (SYSV), dynamically linked (uses shared libs), not stripped

Please strip the file, then it should fit to flashfs.

[dwienie]

Can you explain how I can strip that file ?

[dwienie]

I could finally strip the executable. The file is now much smaller.

[WLAN-Fan]

Hello,

many thanks for your Work!

How can I test this system after installation without a RS-232-Device?

Many Thanks!

[tobitobsen]

great job!

is there a way to do the same with USB devices?

[ct3fq]

usb-server works as a remote usb device but runs only in 2.6 kernel.

[ct3fq]

Hi,
I'm testing the ser2net (version 2.3) in wl500gp and its works fair for me.
I'm using taltech tcp-com as windows client but I have noticed that RTS and DTR pins are always ON for any connection.

I have tried all knew parameters in the ser2net.conf:

1) 32032:raw:600:remctl

2) 32032:raw:600:19200 8DATABITS NONE 1STOPBIT -RTSCTS -XONXOFF

I need to control a serial device with DTR and RTS pins, but, till now, no lucky...:( The ser2net linux manual referes a DTRHI, DTRLO and RTSHI, RTSLO parameters in Control Port parameters...

Any ideas?

[ct3fq]

Hi,

I have replaced ser2net with remserial daemon but still the same problem with RTS and DTR signals.:mad:

I think the problem is not in serial over net deamons but in the nix stty definitions.
When we send an "echo" data or even only a "cat" command to /dev/tts/1 the RST and DTR signal turns allways ON.

How can I configure stty devices to disable RST and DTR status?

[joepurlings]

Hey people,

I'm new with the WL-500g, and I would like to use it to have my DMX (light control) setup working wireless.
I was thinking about libartnet to do this (http://www.nomis52.net/?section=projects&sect2=artnet&page=libartnet), but serial over ethernet would to the job as well.

I managed to get the FT232 usb/rs485 converter attached to /dev/ttyUSB0. Now I would like to use the ser2net lib as noticed in this topic.
Can somebody help me how to get the file on the router?

Another thing, I need a windows (yeah I know... but thats the only OS my lighting software runs on) client to generate a virtual comport.

Greets,
Joep