Pratik,
For the DSP crash, it is Instruction Fetch Exception. Can you see if the following link helps:
http://e2e.ti.com/support/embedded/bios/f/355/t/202327.aspx
http://e2e.ti.com/support/embedded/bios/f/355/p/185394/668158.aspx#668158
For dis-able UDP checksum in NDK, please see:
C:\ti\ndk_2_22_02_16\packages\ti\ndk\stack\udp\udp.c, function void UdpInput( PBM_Pkt *pPkt ), there is code:
if( pUdpHdr->UDPChecksum ) {
...
}
you can comment-out the code and re-build NDK.
Regards, Eric