MCSDK HPC filetest demo

  a) Log into EVMK2H through either COM port, telnet, or ssh

  b) Change directory to <demo_destination>/filetestdemo/scripts

  c) There are two DSP images for this demo. One image uses CPU copy (memcpy) to 
     copy the file data, and the other uses DMA (EdmaMgr). 

     Download the memcpy DSP image with the following command:
     > "./dnld_demo_loopback.sh"

     OR download the ECPY DSP image with the following command:

     > "./dnld_demo_loopback_ecpy.sh"


  e) Run a demo script.

     > "./run_memcpytest.sh <payload_size>" 

  f) verify output is bit-exact with input.


