[Discuss-gnuradio] UCLA_Zigbee_phy examples on E100

[ziyang]

Hello everyone,

I'm new to gnuradio & usrp devices. I tried to update the 
ucla_zigbee_phy examples "cc2420_txtest.py" and "cc2420_rxtest.py" to 
work with UHD (see attachments), then I ran the codes separately on two 
E100 devices but cannot get any packet from the receiver. To find out 
the problem, I connected a vector sink directly to the uhd.usrp_source 
in the receiver. Then I got some data but it seems nothing came from the 
transmitter side, because even if I do not run the transmitter, the 
values of the collected data does not change much, most of which are 
smaller than 0.01.

I have been using the E100 boards and RFX2400 daughter boards, with UHD 
image 003.002.001.
The options for the usrp devices are:
center frequency: 2.475 GHz
sample rate: 200 000

Now I got confused by what happened, could someone have a look at my 
codes and give me a tip about what might be the problem?

Thanks in advance,

Terry

e100_rxtest.py
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e100_txtest.py
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