I'm trying to use the Ettus/UHD example code rfnoc_replay_samples_from_file.cpp (or the python example tx_waveform.py) with an Ettus X410 radio. Specifically, I want to use the dram option. Both programs run without error but I'm not seeing output (no tx light comes on as I would expect).
Are there specific args that need to be set? Does this functionality require a specific uhd version? and/or a specific fpga load?
Here's my settings:
UHD - v4.6.0.0
fpga - UC_200
example with input args:
tx_waveforms.py --freq 900.e6 --args type=x4xx,addr=192.168.100.2 --waveform sine --duration 5 --gain 20 --rate 2500000 --dram
Similar inputs were used for the cpp example. Results are the same for each case - program runs but no Tx light and no output seen.
A call to uhd_usrp_probe shows the following RFNoC blocks:
two DDC blocks
two DUC blocks
two Radio blocks
one Replay block
Thanks
