Release r4 from 2023-06-23 which includes the following:
- Self generated trigger signal for connected MMIC radar on PA8
- SPI configuration of connected MMIC radar.
- Configurable SPI registers in
spi_registers_db.h - MCU ADC synchronization to self generated trigger
- FFT input is now
$I - jQ$ - Ramp ID field to align with ramps generated by other radars in the network