This test measured the TCI6482 EMAC throughput and CPU load for it. 
LOCAL_LOOPBACK=1 and PHY_LOOPBACK=0 performs loopback in the MAC.
LOCAL_LOOPBACK=0 and PHY_LOOPBACK=1 puts the PHY in loopback mode. 
In order for this to pass out of loopback mode (both loopback modes are set to zero), 
a loopback connector must be inserted into the RJ-45. When PHY loopback is used, 
the loopback connector is not required.
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Procedure to run the test:
1. Configure the CCS setup to work with the emulator being used.
2. Build the project and load the .out file of the project.
3. Run the test.
4, check the stdout of DSP for result, it should look like:
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Calling EMAC_open()
Waiting for link...
Link Status  : 100Mb/s Full Duplex MII on PHY number 1
Packets Held : 32-RX  0-TX
Interrupt Pacing: 5 micro second, init CPU load 100%
Sent/received 8192/8192 packets in 1007 ms, packet size is 1500 bytes, achieve bandwidth   97537 kbps with   2% CPU load
Sent/received 8192/8192 packets in  876 ms, packet size is 1300 bytes, achieve bandwidth   97168 kbps with   2% CPU load
Sent/received 8192/8192 packets in  745 ms, packet size is 1100 bytes, achieve bandwidth   96669 kbps with   2% CPU load
Sent/received 8192/8192 packets in  614 ms, packet size is  900 bytes, achieve bandwidth   95957 kbps with   3% CPU load
Sent/received 8192/8192 packets in  483 ms, packet size is  700 bytes, achieve bandwidth   94858 kbps with   3% CPU load
Sent/received 8192/8192 packets in  352 ms, packet size is  500 bytes, achieve bandwidth   92944 kbps with   5% CPU load
Sent/received 8192/8192 packets in  221 ms, packet size is  300 bytes, achieve bandwidth   88764 kbps with   7% CPU load
Sent/received 8192/8192 packets in   90 ms, packet size is  100 bytes, achieve bandwidth   72468 kbps with  16% CPU load
Calling EMAC_close()
