关于C6678 UDP jumbo packet设置

1 是在mem_data.c 。

2 参考NDK user guide section1.2.1，rebuild instruction link：http://processors.wiki.ti.com/index.php/Rebuilding_the_NDK_Core

下面是曾经测试过的方式，请参考，使用的NDK版本与你的不一致，NDK下载：

http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/ndk/index.html 

The NDK I used is 2.22.02.16, (2.21.1.38 is not compatbile with my CCS 5.4).The files I changed are:

1. four .bld files (under stack/os/nettools/netcntl)

2. pbm.c

3. top level ndk.mak

 I all attached them here with the libraries I re-built.

For testing,

On DSP side, I run the hello-world example, only thing I changed is one line in udpHello.c (note this is just for trial, you don't know what inside the reset of the buffer beyond offset "i"),

sendto( s, pBuf, i*2, 0, (PSA)&sin1, sizeof(sin1) );

Then, on PC side, I have a tool - iperf sends UDP packets with 1470 bytes payload to DSP. So DSP sends 1470x2=2940 bytes back to my PC. I saw this fragmented to 2 packets.