migration the NDK Protocol stack of TMS320C6678 and use the order of ping is failed

1. four package are shown below:

PDK_C6678_1_1_2_6;

ndk_2_21_01_38,

bios_6_33_06_50,

mcsdk_2_01_02_06

2.

examples of using the path that "mcsdk_2_01_02_06/examples/ndk/client" and compiler is successful,

connected PC computer can be recognized,but ping is failed

3.

please ask if the question of the driver？ example ethdriver.c、csl_emac.c、nimu_eth.c ，Do you encounter similar problems and how to solve them,thanks very much！