Re: [lwip-users] help with socket!!

[Oscar F]

thanks!!
Regards
Oscar

On Fri, Sep 4, 2009 at 1:43 PM, Mathias Zenger <address@hidden> wrote:

Well, I think you need more information from your customer. If you need a secure connection you should go for TCP otherwise UDP could be sufficient. More examples (socket programming) for TCP connections on your EVK you can find here:

 

http://www.ultimaserial.com/classroom2.html

 

Take a look at how you can use accept() to handle incoming requests.

Good luck!

 

-----Ursprüngliche Nachricht-----
Von: lwip-users-bounces+m.zenger=mobatime.com@nongnu.org [mailto:lwip-users-bounces+m.zenger=mobatime.com@nongnu.org]Im Auftrag von Oscar F

Gesendet: Freitag, 4. September 2009 13:25

An: Mailing list for lwIP users

Betreff: Re: [lwip-users] help with socket!!

Thanks Mathias, i´ll see your file. I don´t know the protocol because i´ve readed the customer documentation and it doesn´t say anything about protocol.
"

links connection process shall be initiated by the PC unit: it will connect sequentially (one after the other) all the logical links.

At power-on/reset, the EVK-1100 Unit shall first create the sockets in order to be ready for accepting a connection in all of them."

the connection are permanent maybe will be TCP no? because then there is a diconnect process.

i´ll need 8 socket TCP connection permanent , do you think the same?

Regards

Oscar

On Fri, Sep 4, 2009 at 1:04 PM, Mathias Zenger <address@hidden> wrote:

What protocol do you use UDP or TCP? I just implemented a task for the same system (EVK1100/FreeRTOS/lwIP). It receives UDP datagrams from a multicast address on different ports. I attached the file to show you how select() can be used. For answering the requests you could write a second task which gets woken by the receiver task (e.g. use queues to signalize the request).

 

Regards, Mathias

 

 

-----Ursprüngliche Nachricht-----
Von: lwip-users-bounces+m.zenger=mobatime.com@nongnu.org [mailto:lwip-users-bounces+m.zenger=mobatime.com@nongnu.org]Im Auftrag von Oscar F
Gesendet: Freitag, 4. September 2009 12:28
An: Mailing list for lwIP users
Betreff: [lwip-users] help with socket!!

Hello everybody, my customer said me that i need to create 8 socket of communication with diferent port.

There will be 8 logical links with a Port number associated:

 

                        -           RQ1 Port Number = 1500H           (=  6376 dec)

                        -           RQ2 Port Number = 1501H           (=  6377 dec)

                        -           RQ3 Port Number = 1502H           (=  6378 dec)

 

                        -           RP1- Port Number = 1600H           (=  6632 dec)

                        -           RP2-Port Number = 1601H           (=  6633 dec)

                        -           RP3-Port Number = 1602H           (=  6634 dec)

                        -           RP4-Port Number = 1603H           (=  6635 dec)

                        -           RP5-Port Number = 1604H          (=  6636 dec)

Each answer and request goes form diferent socket.

I have the evk1100 with avr32, and i use the lwip 1.3.0 with free RTOS port to this micro.

Can i create 8 socket, and wait for request of them and answed for other ?

in the program run other task, do you recommended use the lwip_select function to block for request, and the task state will be blocked and other task can be runned?

Thank you for all

Regards

Oscar

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