Bug 1 (FPGA): status_words[0] was 37 bits (8+3+2+5+3+16), silently
truncated to 32. Restructured to {0xFF, mode[1:0], stream[2:0],
3'b000, threshold[15:0]} = 32 bits exactly. Fixed in both
usb_data_interface_ft2232h.v and usb_data_interface.v.
Bug 2 (Python): radar_mode extracted at bit 21 but was actually at
bit 24 after truncation — always returned 0. Updated shift/mask in
parse_status_packet() to match new layout (mode>>22, stream>>19).
Bug 3 (STM32): parseFromUSB() minimum size check was 74 bytes but
9 doubles + uint32 + markers = 82 bytes. Buffer overread on last
fields when 74-81 bytes passed.
All 166 tests pass (29 cross-layer, 92 GUI, 20 MCU, 25 FPGA).
Three-tier test orchestrator validates opcode maps, bit widths, packet
layouts, and round-trip correctness across FPGA RTL, Python GUI, and
STM32 firmware. Catches 3 real bugs:
- status_words[0] 37-bit truncation in both USB interfaces
- Python radar_mode readback at wrong bit position (bit 21 vs 24)
- RadarSettings.cpp buffer overread (min check 74 vs required 82)
29 tests: 24 pass, 5 xfail (documenting confirmed bugs).
4th CI job added: cross-layer-tests (Python + iverilog + cc).
Swap the verbose Alpha disclaimer paragraph for a simple
"Features: Work in Progress" badge next to the existing
Alpha badge, per review feedback from @JJassonn69.
Badge links to the issues page for current status.
The replay _replay_dc_notch() was treating all 32 Doppler bins as a
single frame, only zeroing bins at the global edges ({0,1,31} for
width=2). The RTL uses dual 16-point sub-frames where each sub-frame
has its own DC, so the notch must use bin_within_sf = dbin & 0xF.
This fixes test_replay_packets_parseable which was seeing 5 detections
instead of the expected 4, due to a spurious hit at (range=2, doppler=15)
surviving CFAR.
Regenerate all real-data golden reference hex files against the current
dual 16-point FFT Doppler architecture (staggered-PRI sub-frames).
The old hex files were generated against the previous 32-point single-FFT
architecture and caused 2048/2048 mismatches in both strict real-data TBs.
Changes:
- Regenerate doppler_ref_i/q.hex, fullchain_doppler_ref_i/q.hex, and all
downstream golden files (MTI, DC notch, CFAR) via golden_reference.py
- Add tb_doppler_realdata (exact-match, ADI CN0566 data) to regression
- Add tb_fullchain_realdata (exact-match, decim->Doppler chain) to regression
- Both TBs now pass: 2048/2048 bins exact match, MAX_ERROR=0
- Update CI comment: 23 -> 25 testbenches
- Fill in STALE_NOTICE.md with regeneration instructions
Regression: 25/25 pass, 0 fail, 0 skip. ruff check: 0 errors.
Resolve all 374 ruff errors across 36 Python files (E501, E702, E722,
E741, F821, F841, invalid-syntax) bringing `ruff check .` to zero
errors repo-wide with line-length=100.
Rewrite CI workflow to use uv for dependency management, whole-repo
`ruff check .`, py_compile syntax gate, and merged python-tests job.
Add pyproject.toml with ruff config and uv dependency groups.
CI structure proposed by hcm444.
Remove unused imports (deque, sys, Opcode, struct, _REPLAY_ADJUSTABLE_OPCODES)
across 4 active Python files and refactor semicolons to separate statements
in radar_protocol.py. Add ruff lint job to CI workflow targeting only the
active files (excludes legacy GUI_V*.py and v7/).
Core hardware works, but GPS/map integration, attitude correction,
and beam steering UI are not yet complete — callers deserve to know
before they build on those features.
Closes gap 10.5 from reality-check review.
Three parallel jobs covering all AERIS-10 test infrastructure:
- Python dashboard tests (58): protocol, connection, replay, opcodes, e2e
- MCU firmware tests (20): bug regression (15) + Gap-3 safety (5)
- FPGA regression (23 TBs + lint): unit, integration, and system e2e
Triggers on push/PR to main and develop branches.
Accidentally included SSH key path, hostname, port, and internal server
paths in the build quick-reference section. Replaced with generic
instructions.
Add USB Interface Architecture section documenting the USB_MODE parameter,
generate block mechanism, per-target wrapper pattern, FT2232H pin map, and
build quick-reference. Update top modules table (50T now uses
radar_system_top_50t), bank voltage tables, and signal differences to
reflect the FT2232H/FT601 dual-interface design.
Replace FT601Connection with FT2232HConnection in radar_dashboard.py and
smoke_test.py. Both files had broken imports after FT601Connection was
removed from radar_protocol.py. Also update requirements_dashboard.txt
(ftd3xx -> pyftdi) and GUI_versions.txt descriptions.
Align test suite with FT601 removal from radar_protocol.py:
- Replace FT601Connection with FT2232HConnection throughout
- Rewrite _make_data_packet() to build 11-byte packets (was 35-byte)
- Update data packet roundtrip test for 11-byte format
- Fix truncation test threshold (20 -> 6 bytes, since packets are 11)
- Update ReplayConnection frame_len assertions (35 -> 11 per packet)
57 passed, 1 skipped (h5py), 0 failed.
- Add set_false_path -hold for source-synchronous ADC IDDR paths in
adc_clk_mmcm.xdc (eliminates 8 hold violations from build 12)
- Add DDR falling-edge input delay constraints to xc7a50t_ftg256.xdc
(parity with 200T XDC)
- Reorganize scripts/ into target subdirectories: 50t/, 200t/, te0712/,
te0713/, utils/ so users can run the correct build for their hardware
- Delete obsolete build scripts (build17-20) superseded by build_50t/200t
- Update project_root paths in all moved scripts (.. -> ../..)
Add (* USE_DSP = "no" *) attribute to FIR lowpass adder tree registers
(add_l1, add_l2, add_l3, accumulator_reg) to prevent Vivado from
inferring DSP48E1 slices for pure addition operations.
Each fir_lowpass_parallel_enhanced instance was using 47 DSPs (32 for
multiply + 15 for the adder tree). The 15 adder-tree DSPs per instance
(30 total for I/Q pair) performed only PCIN+A:B additions with no
multiplier usage. On the XC7A50T with only 120 DSP48E1 slices, this
caused 100% DSP utilization and forced FFT butterfly complex multipliers
to spill into 18-level fabric carry chains (WNS=-1.103ns).
Moving these 36-bit additions to fabric CARRY4 chains (~9 CARRY4 per
add, ~2ns propagation) is well within the 10ns clock period and frees
~30 DSPs for the FFT engine to use native DSP48E1 multipliers.
Regression: 23/23 FPGA tests PASS (attribute is synthesis-only).
Build attempt 10 produced a valid bitstream but with only 315 LUTs and
15 DSPs — opt_design removed all logic feeding unconnected _nc wires.
Adding (* DONT_TOUCH = "TRUE" *) on the u_core instance prevents
Vivado from optimizing away the internal radar pipeline logic.
The XC7A50T-FTG256 has only 69 usable IO pins but radar_system_top
declares 182 port bits. Previous attempts to remove unconstrained
ports via TCL caused opt_design to cascade-remove all driving logic.
New approach: radar_system_top_50t.v is a thin wrapper that:
- Exposes only the 64 physically-connected ports (ADC, DAC, SPI, clocks)
- Instantiates radar_system_top internally with full logic preserved
- Ties off unused inputs (FT601 bus, ext trigger) to safe defaults
- Leaves unused outputs internally connected (no IOBs created)
Updated build_50t_test.tcl to use radar_system_top_50t as top module
and removed the now-unnecessary port removal TCL code.
remove_port fails on connected ports with [Coretcl 2-28]. Add
disconnect_net step before remove_port to properly detach the
port from its driving/driven nets in the synthesized netlist.
The 50T FTG256 has only 69 usable IO pins but the RTL declares 182 port
bits. launch_runs spawns a child process that cannot remove ports.
Switch to direct opt_design/place_design/route_design flow so we can
remove 118 unconstrained ports (FT601 USB, dac_clk, status/debug) from
the netlist before placement, avoiding [Place 30-58] IO overflow.
The placer enforces a single VCCO per bank. LVDS_25 forces Bank 14
to VCCO=2.5V, which conflicts with LVCMOS33 (needs 3.3V). Changing
adc_pwdn to LVCMOS25 resolves [Place 30-372] bank incompatibility.
The AD9484 PWDN pin has CMOS-level thresholds (~0.8V), so 2.5V
output drives it correctly.
set_property SEVERITY in the parent Vivado process does not propagate
to the child process spawned by launch_runs. Write a drc_waivers_50t.tcl
hook and attach it via STEPS.OPT_DESIGN.TCL.PRE so BIVC-1, NSTD-1,
and UCIO-1 are demoted to warnings inside the impl_1 run context.
Three issues prevented the 50T (FTG256) build from completing:
1. LVDS standard: LVDS_33 and LVDS do not exist on 7-series HR banks.
Changed to LVDS_25 (the only valid differential input standard).
IBUFDS inputs are VCCO-independent, so LVDS_25 works correctly even
with Bank 14 VCCO=3.3V.
2. BIVC-1 DRC: Bank 14 has LVDS_25 (needs 2.5V) and LVCMOS33 adc_pwdn
(needs 3.3V). Since all LVDS ports are inputs (IBUFDS only), the
voltage conflict does not affect functionality. Demoted to warning.
3. Pin overflow: 113 ports vs 69 available FTG256 pins. The 118
unconstrained port bits (FT601 unwired, status/debug unrouted,
dac_clk unconnected) cause NSTD-1/UCIO-1 DRC errors. Demoted to
warnings since these ports have no physical connections on this board.
Also added: CFGBVS/CONFIG_VOLTAGE settings, build_50t_test.tcl to repo.
LVDS_33 is not a valid I/O standard on 7-series FPGAs. The correct
standard for LVDS inputs in HR banks with VCCO != 2.5V is LVDS, which
works with any VCCO for input-only buffers (IBUFDS). LVDS_25 requires
VCCO=2.5V exactly.
Note: the 50T FTG256 build still fails at placement due to pin overflow
(113 ports vs 69 available pins) — this is a pre-existing package
limitation unrelated to this fix.
The IBUFDS primitives in ad9484_interface_400m.v hardcoded LVDS_25 and
DIFF_TERM TRUE, which overrode XDC constraints. On the XC7A50T (Bank 14
VCCO=3.3V), this caused a BIVC-1 DRC error: LVDS_25 requires VCCO=2.5V,
conflicting with adc_pwdn (LVCMOS33, VCCO=3.3V) in the same bank.
Changes:
- ad9484_interface_400m.v: IBUFDS parameters changed from LVDS_25/DIFF_TERM
TRUE to DEFAULT/DIFF_TERM FALSE, delegating control to XDC per target
- xc7a50t_ftg256.xdc: Re-enable DIFF_TERM TRUE (safe now that RTL does not
hardcode LVDS_25), update DRC Fix History with correct root cause
copilot-swe-agent[bot]
Jason
NawfalMotii79
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