Embedded Linux for data acquisition and control

Jerry Van Baren vanbaren_gerald at si.com
Tue Feb 20 23:09:21 EST 2001

Do a web search.  The hardest part will be picking the best one for
your needs.

Some candidates from a quick scan:

well, you get the idea.


At 05:00 PM 2/20/01 +0530, Srinivas Rao.M wrote:

>Hello Peter, and other list members
>I am having a question rather than an answer for the earlier posted
>   I am also having the similar problem, as Mr Peter's . I have the
>embedded system based on the FADS860T having the MPC860T Processor. On
>the custom board i
>have a number of serial devices. The parameters of the serial devices i
>want to control through the web browser. I have the Text based interface
>(CLI) to control and configure these serial port parameters. The
>such as the baud rate, Character width, parity bit,etc., i am presently
>configuring it through the Command line interface. I want to do it with
>the help of the web browser on the remote machine.
>I would really appreciate, if someone gives me the idea of doing this. I
>have a FreeBSD4.3 compatible network stack on this custom board. My
>initial idea was to port a WebServer such as Apache, onto my system.
>But that looks tedious job, as the source code itself is very big. I am
>looking for the open source Webserver for the embedded devices. Can any
>one suggest me any alternative approach to my task.
>On Thu, 15 Feb 2001, Peter Uttley wrote:
> >
> > Hi Everyone,
> >
> > Hope someone can give me a bit of advice on the best way to tackle a
> > university project I'm working on.
> >
> > OK, I've currently ported Linux to my embedded MPC-850 board, many
> thanks to
> > the help of Frank Przybylski with his BDM4GDB and the invaluable
> advice from
> > Wolfgang Denx, thanks Guys!
> >
> > Now what I want to do with the board is use it for data acquisition and
> > control of peripheral systems via a web interface.
> > I'm currently building my peripheral hardware which then simply
> dumps the
> > data down the serial port to the MPC-850.
> >
> > I would really appreciate some advice on the best why to handle the
> data
> > coming in on the serial port and get it into the webserver.
> >
> > My initial thoughts are,
> >
> > I write a bit of software which monitors the serial port and has
> its own
> > little protocols with my peripheral hardware, the data is then
> written into
> > a file which is read by my web server (I'm using GoAhead-Thanks for the
> > pointer Frank) which has a active server page to display the
> information.
> >
> > However this seems a bit of a hack way of doing it, and could cause
> problems
> > when I'm trying to send data to my device to electronically open an
> door for
> > instance.
> >
> > Is it possible therefore to directly receive and transmit data from
> my web
> > server to the serial port, I know you can write any C code in ASP
> or CGI
> > scripts but I need to have some sort of control, monitoring,
> waiting for
> > data e.t.c. which seem best handled by some sort of daemon or
> device driver.
> >
> > Hope that makes sense and that someone can give me a few clues as
> to which
> > direction I should take, the project time schedules quite tight so
> I don't
> > want to be heading down too much of a blind alley.
> >
> > Thanks for you time,
> >
> > Regards,
> >
> > Pete.
> >
> >
> >
>When you are content to be simply yourself and don't compare or compete,
>everybody will respect you.

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