Hello everyone,
I am trying to figure out how to receive complex 8-bit integer samples from a USRP containing a custom RFNoC flowgraph. If I didn't require RFNoC and could use the legacy UHD C++ API instead, this would be trivial; I would simply set both the host format and on-the-wire format in my stream arguments to "sc8". However, when I do the same thing in my RFNoC-based application, I get the following error message: Error: RuntimeError: [RX Streamer] Conflicting OTW types defined: args.otw_format = 'sc8' <=> stream_sig.item_type = 'sc16' I understand that the value of stream_sig.item_type comes from the <source> port in the XML block declaration of the block to which my rx_streamer points, but editing the <type> field there does not produce the desired result. To correctly stream 8-bit samples, would I have to, say, implement a custom RFNoC block to repackage 16-bit samples into 8-bit samples at half the sample rate, discarding the 8 LSBs? Or is there a simpler way to do this? Thank you in advance for your assistance. Adam Parower
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