Fix multi-seg/chain handshake deadlock + add radar_receiver_final integration test (10/10 PASS)

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RTL fix: matched_filter_multi_segment.v ST_WAIT_FFT now waits for
processing chain to complete ALL 1024 outputs and return to IDLE
before advancing to next segment. Previously, it transitioned on the
first fft_pc_valid edge, causing the chain to still be outputting
while multi-seg started collecting data for the next segment. This
broke the handshake and caused permanent deadlock after segment 0.

Also fixes forward reference of sample_addr_from_chain in
radar_receiver_final.v (declaration moved before first use).

New files:
- tb/tb_radar_receiver_final.v: P0 integration test for full RX
  pipeline (ADC->DDC->MF->range_bin_decimator->doppler), 10 checks
- tb/ad9484_interface_400m_stub.v: behavioral ADC stub for iverilog

All existing tests still pass: multi-seg 32/32, MF co-sim 3/3,
Doppler co-sim 14/14.

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This commit is contained in:

Jason

2026-03-16 18:51:08 +02:00

parent a5a5e96a57

commit e76925391c

5 changed files with 2590 additions and 30 deletions

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9_Firmware/9_2_FPGA/tb/cosim/rx_final_doppler_out.csv

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