Re: [ECOS]problem with recent port of lwip

[Simon Kallweit <simon dot kallweit at intefo dot ch>]

Bob Brusa wrote:
> Am 17.09.2009, 13:48 Uhr, schrieb Simon Kallweit 
> <simon.kallweit@intefo.ch>:
>
> > Bob Brusa wrote:
> > > Am 17.09.2009, 09:51 Uhr, schrieb Simon Kallweit 
> > > <simon.kallweit@intefo.ch>:
> > > > Well, if you have configured the Sequential mode, I guess this is a 
> > > > problem with the indexer of eclipse. Eclipse seems to not have found 
> > > > the CYGIMP_LWIP_MODE_Sequential. I've had similar problems.
> > > >
> > > > The way I currently work inside eclipse is to create a C/C++ project 
> > > > using the 'build' directory as the projectss main directory (the 
> > > > directory where you run ecosconfig).
> > > Do you mean "as workspace"?
> >
> > Create a new 'C Project' and select 'Makefile Project' -> 'Empty 
> > Project'. Specify a project name and as the 'Location' use the build 
> > directory where you have your ecos source tree.
> >
> > > > Then I add the ecos repository as a
> > > > linked folder (I usually directly add the packages folder, as this is
> > >  There are several ways of doing this. What is the method of your 
> > > choice?
> > > I understand your link in "path2ECOSroot"/packages ?
> >
> > Exactly. Right click on the project you just created in the 'Project 
> > Explorer' on the left. Then select 'New' -> 'Folder'. Enter a 'Folder 
> > name' like 'ecos' and click the 'Advanced >>' button then select the 
> > path of your ecos repository (or it's packages subfolder).
> >
> > This is just the way I use eclipse with my eCos projects. I have my 
> > sources split up in multiple ecos repositories, which I all add as 
> > linked folders. Only drawback is that I you cannot use version control 
> > on these folders. But I'm used to do this on the console anyway. Maybe 
> > there are better ways of doing this?!?
> >
> > Simon
>
> Hi Simon
> I did what I understood from your text - and it got messy. It seems I 
> did not understand correctly ;-).
>
> Anyway, I reverted back to my own eclipse-methodology and also decided 
> to go for your most recent lwip-port 
> http://download.westlicht.ch/lwip-20090903.tar.gz (which Mandeep had 
> mentioned). And with this it looks much more promising.

Whatever works for you is fine :) I tried different schemes myself to 
come up with what I currently use. And as I said, I'm not 100% happy 
with it myself. But it's functional in my case.


> Running the tcpecho.c program, I can see that the DHCP-server on our LAN 
> recognizes the board, even assigns it an address, but somehow the thing 
> is not really working. I have not sent any tcp-packages to the board 
> yet, but I get a lot of timeout errors in the debug output (see 
> attachment). Only - I do not understand why and what all this output 
> means. Something seems to be unconfigured yet and this then causes these 
> timeouts? How to fix that?

These sys_timeout log entries are normal, as far as I know. They are 
output when lwip checks for timeouts on blocking operations. You should 
probably just disable "System debugging" in the debug options.

> Further: How do I send tcp-packet to port 7. Will a browser where I 
> enter 192.168.0.10:7 send a tcp-package to port 7?

Use a telnet session. You should get echo's of whatever you send to the 
target. Note that telnet sends data when you hit the 'return' key.

Simon

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