Does anyone use the E110 to run benchmark_rx successfully?

As the subject implied,when I used two E110s to run the benchmark_rx and
benchmark_tx,I cannot see the results expected.It just show “OOOO” at
the rx side.what’s the main reason for this? Does the E110 has no power
to run this program?
Oh,another question,can I use the E110 to design a duplex system with a
daughter board FLEX900, because my project is to design a polling