This will also depends on the protocol stack you're using. Are you going to send
data raw over ethernet? Are you going tu use a tcp/ip stack? A proprietary
stack? Anyway, you shold be the one to answer this. Keep in mind that for each
stack you add you'll have more overhead (and obvious you datarate will drop).
This is a just a theorical limit, as alredy pointed true rates will depends on
software inplementation. Don't forget that even if you send data as faster as
you can, if you don't have a real time ethernet (or wathever other stack you're
using) on the receiving side, you're likely to miss any real time constraints
for you system (suposing the system consists in both sides, sender and
receiver).

Regards,
Fernando Almeida.

--- Em sex, 3/7/09, Marcelo Richter <marcelo.richter@...> escreveu:

De: Marcelo Richter <marcelo.richter@...>
Assunto: RE: [lpc2000] Re: Ethernet transmission rate
Para: lpc2000@yahoogroups.com
Data: Sexta-feira, 3 de Julho de 2009, 14:20

















This is how that long and useless discussion starts...



Don,



I think you want to know what to expect from ethernet on LPC. We have a

proprietary OS/TCP stack on an LPC2368 and in simple tests here we get about

2M bytes/s. LPC transmitting packets via a task to monitor on PC.

But you need to do tests with your board/OS/stack. ..



Marcelo Richter



> -----Original Message-----

> From: lpc2000@yahoogroups .com [mailto:lpc2000@yahoogroups .com] On Behalf

Of

> donhamilton2002

> Sent: sexta-feira, 3 de julho de 2009 12:28

> To: lpc2000@yahoogroups .com

> Subject: [lpc2000] Re: Ethernet transmission rate

>

> --- In lpc2000@yahoogroups .com, "nguyentranminhnhat "

<nguyentranminhnhat @...>

> wrote:

> >

> > Hi Paul Curtis,

> >

> > Your answer is right and they are maximum rate in theory!

> >

> > I want to clarify my question: we use 2 LPC2478 at 72MHz clock rate

>

> If you already have 2 boards, why not measure the speed yourself ??

>

> You really need to do your own homework.

>

> don

>

>

> and transceive data on 100M ethernet line. Data from No1 to No2 and back

and we

> measure actual transmission rate. So, what is the maximum rate we can get?

> >

> > One more example, what if we send camera video stream to LPC2478 and

then

> display on GLCD? how about video size, fps ... we can get?

> >

> > --- In lpc2000@yahoogroups .com, "Paul Curtis" <plc@> wrote:

> > >

> > > Hi,

> > >

> > > I mean, this is very Elementary Stuff.

> > >

> > > My answer is 100% accurate. Your question is nonsense.

> > >

> > > --

> > > Paul Curtis, Rowley Associates Ltd   http://www.rowley. co.uk

> > > CrossWorks V2 is out for LPC1700, LPC3100, LPC3200, SAM9, and more!

> > >

> >

>

>

>

>

> ------------ --------- --------- ------

>

> Yahoo! Groups Links

>

>

>






























________________________________________________________________________________\
____
Veja quais são os assuntos do momento no Yahoo! +Buscados
http://br.maisbuscados.yahoo.com

[Non-text portions of this message have been removed]