RfStreamBuf

Under construction.

RfStreamBuf is the continuous sample buffer — load the next waveform while the current one plays, or drain a capture while still capturing. It buys unbounded duration and data you can change mid-flight, and pays for them with headroom, a reverse channel, and a strictly larger failure surface.

RfStreamBuf is a family name, not a class. There is no RfStreamBuf to import, and there never has been. The family is two concrete modules, and unlike the shot family they are not at the same stage:

	class	module	status
transmit	RfTxStream	waveflow/hw/rf_tx_stream.py	built, RTL-gated by tests/examples/test_rf_circ_play_xsi.py
receive	RfSampBufRx	waveflow/hw/rf_samp_buf.py	built and RTL-gated, but it is the older BRAM-and-progress-channel design

RfTxStream is the finished, stream-based transmitter (plans/rf_samp_new.md Stage 1). The stream-based receiver that would replace RfSampBufRx is Stage 2 of that plan and is not built, so RfSampBufRx is what you use today. Read plans/rf_samp_new.md before building on its internals.

Until this section exists, the material that covers it is:

• Choosing a sample buffer — what this family costs that the shot family does not.
• Rfdc — the converter underneath, and the raw AXI-Stream interface this family sits on.