Changelog

v0.7.0-pre

Hardware bring-up milestone: live RDS now decodes on PlutoSDR, with stabilized sample-rate handling, persistent DSP state, and phase-coherent MPX/RDS integration.

v0.6.0-pre

Hardware integration: SoapySDR CGO binding, IQ resampling, TX CLI mode.

Added

CGO SoapySDR native driver (internal/platform/soapysdr/native.go)
- Device enumerate, open, configure (frequency, gain, sample rate)
- TX stream setup with CF32 format
- writeStream with MTU-chunking and timeout
- Activate/deactivate/close stream lifecycle
- Build-tagged: //go:build soapy
Stub driver for non-CGO builds (internal/platform/soapysdr/stub.go)
soapysdr.Available() / soapysdr.Enumerate() API
IQ resampler (dsp.ResampleIQ) — composite→device rate via linear interpolation
CLI flags: --tx, --tx-auto-start, --list-devices
Signal handling (SIGINT/SIGTERM) for clean shutdown in TX mode
txBridge adapter connecting Engine to control plane TXController
PlutoSDR config example (docs/config.plutosdr.json)
Engine now resamples IQ to device rate when rates differ

Build

Without hardware: go build ./cmd/fmrtx
With SoapySDR: go build -tags soapy ./cmd/fmrtx

v0.5.0-pre

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