[lwip-users] FreeRTOS + lwIP = read data from TCP

[jirkaj4]

Hi friend. 
I´m implement lwIp and FreeRTOS on my developmnet board "sam4e xplained
pro", and I have got a problem with read data on TCP.

*Complet code is here:*
http://paste.ofcode.org/38xKtMFFp3v5huRwSmPBur7
<http://paste.ofcode.org/38xKtMFFp3v5huRwSmPBur7>  

And when I used this function (with return back data to TCP), all is working
fine:
http://paste.ofcode.org/Y9dY3vkqKcdxDnfrwpTYgp
<http://paste.ofcode.org/Y9dY3vkqKcdxDnfrwpTYgp>  

But when I disable return data back to TCP, program working, but in
wireshark I see TCP retransmission after all send data.
http://paste.ofcode.org/uzSWRyhkrAPE63tuNQFjw4
<http://paste.ofcode.org/uzSWRyhkrAPE63tuNQFjw4>  

Any idea, what is wrong??

*Some screenshot:*
1.  Screenshot with a problem
<http://s21.postimg.org/wlhqh31g5/problem_1.jpg>  
2.  Screenshot without a problem
<http://s27.postimg.org/seixg63hf/problem_2.jpg>  



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