AnasSarkiz/NEMA14_RP2040

artifacts/engineering-fixes/usb-verification.json

{
  "passed": true,
  "board_sha256": "16a605a565a272ce12a5194f28e1d9d8359c183d6110d117a4771d2b8ec91d2d",
  "cores": [
    {
      "core": "connector_to_ESD",
      "layer": "bottom",
      "reference_layer": "inner2",
      "actual_minimum_pair_clearance_mm": 0.15999999999999892,
      "core_length_difference_mm": 0.04105555697271157,
      "tracks": [
        {
          "full_width_ground_reference_coverage_fraction": 1.0,
          "unsupported_reference_copper_area_mm2": 0.0,
          "net": "USB_DP",
          "trace_id": "usb_coupled_connector_to_ESD_USB_DP",
          "actual_length_mm": 30.37907609293687,
          "screened_reference_samples": 1203,
          "local_USB_via_antipad_samples": 14,
          "ground_reference_coverage_fraction": 1.0,
          "exact_screened_reference_length_mm": 30.03405713943898,
          "exact_unsupported_reference_length_mm": 0.0,
          "unsupported_samples_mm": []
        },
        {
          "full_width_ground_reference_coverage_fraction": 1.0,
          "unsupported_reference_copper_area_mm2": 0.0,
          "net": "USB_DM",
          "trace_id": "usb_coupled_connector_to_ESD_USB_DM",
          "actual_length_mm": 30.42013164990958,
          "screened_reference_samples": 1207,
          "local_USB_via_antipad_samples": 11,
          "ground_reference_coverage_fraction": 1.0,
          "exact_screened_reference_length_mm": 30.160562932982433,
          "exact_unsupported_reference_length_mm": 0.0,
          "unsupported_samples_mm": []
        }
      ]
    },
    {
      "core": "ESD_to_series",
      "layer": "bottom",
      "reference_layer": "inner2",
      "actual_minimum_pair_clearance_mm": 0.15999999999999787,
      "core_length_difference_mm": 0.0682940708718478,
      "tracks": [
        {
          "full_width_ground_reference_coverage_fraction": 1.0,
          "unsupported_reference_copper_area_mm2": 0.0,
          "net": "USB_DP",
          "trace_id": "usb_coupled_ESD_to_series_USB_DP",
          "actual_length_mm": 5.512524000429748,
          "screened_reference_samples": 206,
          "local_USB_via_antipad_samples": 16,
          "ground_reference_coverage_fraction": 1.0,
          "exact_screened_reference_length_mm": 5.14214889329379,
          "exact_unsupported_reference_length_mm": 0.0,
          "unsupported_samples_mm": []
        },
        {
          "full_width_ground_reference_coverage_fraction": 1.0,
          "unsupported_reference_copper_area_mm2": 0.0,
          "net": "USB_DM",
          "trace_id": "usb_coupled_ESD_to_series_USB_DM",
          "actual_length_mm": 5.580818071301596,
          "screened_reference_samples": 195,
          "local_USB_via_antipad_samples": 30,
          "ground_reference_coverage_fraction": 1.0,
          "exact_screened_reference_length_mm": 4.863127132553785,
          "exact_unsupported_reference_length_mm": 0.0,
          "unsupported_samples_mm": []
        }
      ]
    },
    {
      "core": "series_to_MCU",
      "layer": "top",
      "reference_layer": "inner1",
      "actual_minimum_pair_clearance_mm": 0.15999999999999936,
      "core_length_difference_mm": 0.06547396831389785,
      "tracks": [
        {
          "full_width_ground_reference_coverage_fraction": 1.0,
          "unsupported_reference_copper_area_mm2": 0.0,
          "net": "MCU_DP",
          "trace_id": "usb_coupled_series_to_MCU_MCU_DP",
          "actual_length_mm": 2.065493781459976,
          "screened_reference_samples": 84,
          "local_USB_via_antipad_samples": 0,
          "ground_reference_coverage_fraction": 1.0,
          "exact_screened_reference_length_mm": 2.065493781459976,
          "exact_unsupported_reference_length_mm": 0.0,
          "unsupported_samples_mm": []
        },
        {
          "full_width_ground_reference_coverage_fraction": 1.0,
          "unsupported_reference_copper_area_mm2": 0.0,
          "net": "MCU_DM",
          "trace_id": "usb_coupled_series_to_MCU_MCU_DM",
          "actual_length_mm": 2.1309677497738737,
          "screened_reference_samples": 87,
          "local_USB_via_antipad_samples": 0,
          "ground_reference_coverage_fraction": 1.0,
          "exact_screened_reference_length_mm": 2.1309677497738737,
          "exact_unsupported_reference_length_mm": 0.0,
          "unsupported_samples_mm": []
        }
      ]
    }
  ],
  "nominal_core_width_mm": 0.25,
  "nominal_core_gap_mm": 0.16,
  "local_terminal_fanouts_width_mm": 0.16,
  "reference_coverage_method": "Exact geometric intersection of every screened track centerline with grounded adjacent-layer copper; 0.025 mm samples retained for diagnosis",
  "reference_transition_exceptions": "Only actual same-pair via antipads, pad radius plus 0.21 mm; no blanket endpoint exclusion",
  "controlled_impedance_verified": false,
  "fabricator_stackup_approved": false,
  "USB_hardware_operation_verified": false,
  "errors": []
}