michele
25aa608052
27 kΩ pull-up, VOL/VOH, 200 pF device / 700 pF cable, 5 Ω interconnect. TMDS/FRL Zdiff stays UNKNOWN.
253 lines
11 KiB
Python
253 lines
11 KiB
Python
"""Recovered-PDF pack: USB Electrical CTS, Type-C FTS, DVI 1.0, IEEE 802.3-2012 §2."""
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from __future__ import annotations
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import json
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from backend.periscopex.models import (
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Component,
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ComponentType,
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DesignGraph,
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Net,
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NetType,
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PinConnection,
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)
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from backend.periscopex.protocol_catalog import load_catalog
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from backend.periscopex.protocol_recognize import recognize_physical_buses
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def _cite_ok(c) -> None:
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assert c.value_kind == "NUMERIC"
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assert c.value is not None
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src = c.source
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assert src is not None
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assert src.document
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assert src.organization
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assert src.revision
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assert src.page
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assert src.section or src.table
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def test_usb_cts_hs_numeric_cited_no_zdiff_90():
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cat = load_catalog()
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hs = next(p for p in cat.physical_interfaces if p.id == "usb2-hs-dpair")
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by = {c.parameter: c for c in hs.constraints}
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_cite_ok(by["data_rate"])
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assert by["data_rate"].value == 480.00
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assert by["data_rate"].unit == "Mb/s"
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assert by["data_rate"].source.document == "Universal Serial Bus Specification"
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assert "2.0" in by["data_rate"].source.revision
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assert by["data_rate"].source.section == "7.1.11"
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assert by["rise_time"].value == 300.0
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assert by["fall_time"].value == 300.0
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assert by["pull_up"].value == 1500.0
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assert by["dc_resistance"].value == 17.0
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assert by["dc_resistance_captive_cable_device"].value == 23.0
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assert by["dc_resistance_host_hub_downstream"].value == 13.0
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for key in (
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"data_rate", "rise_time", "fall_time", "pull_up", "dc_resistance",
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"dc_resistance_captive_cable_device", "dc_resistance_host_hub_downstream",
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"cable_differential_impedance", "pcb_trace_nominal_zdiff",
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):
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_cite_ok(by[key])
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assert by["cable_differential_impedance"].value == 90.0
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assert by["cable_differential_impedance"].source_type == "CABLE"
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assert by["pcb_trace_nominal_zdiff"].value == 90.0
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assert by["pcb_trace_nominal_zdiff"].mandatory == "RECOMMENDED"
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assert by["pcb_trace_nominal_zdiff"].source_type == "PCB"
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z = by["differential_impedance"]
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assert z.value_kind == "UNKNOWN"
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assert z.value is None
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ls = next(p for p in cat.physical_interfaces if p.id == "usb2-ls-dpair")
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ls_rate = next(c for c in ls.constraints if c.parameter == "data_rate")
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_cite_ok(ls_rate)
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assert ls_rate.value == 1.50
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fs = next(p for p in cat.physical_interfaces if p.id == "usb2-fs-dpair")
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fs_rate = next(c for c in fs.constraints if c.parameter == "data_rate")
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_cite_ok(fs_rate)
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assert fs_rate.value == 12.000
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blob = json.dumps(z.model_dump())
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assert "90" not in blob
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def test_type_c_rp_rd_from_cabcon_r25_vbus_volts_unknown():
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cat = load_catalog()
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rec = next(p for p in cat.physical_interfaces if p.id == "usb-c-receptacle")
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by = {c.parameter: c for c in rec.constraints}
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_cite_ok(by["rp"])
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assert by["rp"].value == 56000.0
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assert by["rp"].source.table == "Table 4-27"
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assert by["rp"].source.revision == "Release 2.5, March 2026"
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assert by["rp"].source_type == "CONNECTOR"
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_cite_ok(by["rd"])
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assert by["rd"].value == 5100.0
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assert by["rd"].source.table == "Table 4-28"
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_cite_ok(by["ra"])
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assert by["ra"].value == 800.0
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assert by["ra"].source_type == "CABLE"
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_cite_ok(by["voltage"])
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assert by["voltage"].value == 4.75
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assert by["voltage"].unit == "V"
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assert by["voltage"].source.table == "Figure 4-39"
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assert by["voltage"].source.page == "233"
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assert "2.5" in by["voltage"].source.revision
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assert by["voltage"].source_type == "CABLE"
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assert any("not USB PD vSafe5V" in x for x in by["voltage"].conditions)
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_cite_ok(by["vbus_requirements"])
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assert by["vbus_requirements"].value == 4.0
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assert by["vbus_requirements"].source.table == "Figure 4-39"
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_cite_ok(by["electrical_thresholds"])
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assert by["electrical_thresholds"].value == 1.50
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assert by["electrical_thresholds"].source.table == "Table 4-32"
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assert by["electrical_thresholds"].source.page == "240"
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assert "August 2019" in by["electrical_thresholds"].source.revision
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assert by["electrical_thresholds"].source_type == "PCB"
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_cite_ok(by["vopen_source_default"])
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assert by["vopen_source_default"].value == 1.65
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_cite_ok(by["vra_source_default_max"])
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assert by["vra_source_default_max"].value == 0.15
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_cite_ok(by["vrd_detect_threshold_default"])
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assert by["vrd_detect_threshold_default"].value == 1.60
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_cite_ok(by["termination"])
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assert by["termination"].value == 126000.0
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assert by["termination"].source.table == "Table 4-30"
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assert "2.5" in by["termination"].source.revision
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assert by["termination"].source_type == "CONNECTOR"
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_cite_ok(by["timing"])
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assert by["timing"].value == 100.0
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assert by["timing"].source.table == "Table 4-34"
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assert "2.5" in by["timing"].source.revision
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_cite_ok(by["t_vbuson_max"])
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assert by["t_vbuson_max"].value == 275.0
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assert by["t_vbuson_max"].source.table == "Table 4-32"
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assert by["t_vbuson_max"].source.page == "247"
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assert "2.5" in by["t_vbuson_max"].source.revision
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assert by["vsafe5v"].value_kind == "UNKNOWN"
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assert "vSafe5V" in (by["vsafe5v"].needed_document or "")
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_cite_ok(by["gnd_ir_drop_cable"])
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assert by["gnd_ir_drop_cable"].value == 250.0
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assert by["gnd_ir_drop_cable"].source_type == "CABLE"
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assert by["gnd_ir_drop_cable"].mandatory == "OPTIONAL"
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_cite_ok(by["vbus_ir_drop_cable"])
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assert by["vbus_ir_drop_cable"].value == 500.0
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assert "Functional Test" in by["vbus_ir_drop_cable"].source.document
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def test_dvi_not_hdmi_numeric_from_dvi_10():
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cat = load_catalog()
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logical = {p.id for p in cat.logical_protocols}
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assert "dvi" in logical
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assert "mini-hdmi" not in logical
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dvi = next(p for p in cat.physical_interfaces if p.id == "dvi-1.0-tmds")
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assert dvi.logical_protocol_id == "dvi"
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assert dvi.connector == "DVI"
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by = {c.parameter: c for c in dvi.constraints}
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_cite_ok(by["termination"])
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assert by["termination"].value == 50.0
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assert by["termination"].source.table == "Table 4-2"
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_cite_ok(by["differential_impedance"])
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assert by["differential_impedance"].value == 100.0
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assert by["differential_impedance"].source.table == "Table 4-7"
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assert by["differential_impedance"].source.organization == "DDWG"
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hdmi = next(p for p in cat.physical_interfaces if p.id == "hdmi-1.4-tmds-type-a")
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hz = next(c for c in hdmi.constraints if c.parameter == "differential_impedance")
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assert hz.value_kind == "UNKNOWN"
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assert hz.value is None
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hby = {c.parameter: c for c in hdmi.constraints}
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_cite_ok(hby["cec"])
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assert hby["cec"].value == 27000.0
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assert hby["cec"].source.table == "CEC Table 2"
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assert "1.3" in hby["cec"].source.revision
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assert hby["cec"].source_type == "PCB"
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_cite_ok(hby["cec_device_capacitance"])
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assert hby["cec_device_capacitance"].value == 200.0
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assert hby["cec_device_capacitance"].source.table == "Table 4-27"
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_cite_ok(hby["cec_cable_capacitance"])
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assert hby["cec_cable_capacitance"].value == 700.0
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assert hby["cec_cable_capacitance"].source_type == "CABLE"
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_cite_ok(hby["cec_vol_max"])
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assert hby["cec_vol_max"].value == 0.6
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_cite_ok(hby["cec_voh_min"])
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assert hby["cec_voh_min"].value == 2.5
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_cite_ok(hby["cec_interconnect_resistance"])
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assert hby["cec_interconnect_resistance"].value == 5.0
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frl = next(p for p in cat.physical_interfaces if p.id == "hdmi-frl-pcb")
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fz = next(c for c in frl.constraints if c.parameter == "differential_impedance")
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assert fz.value_kind == "UNKNOWN"
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assert fz.value is None
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g = DesignGraph(
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components={
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"J3": Component(
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reference="J3", value="DVI-D receptacle",
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footprint="DVI_D",
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component_type=ComponentType.CONNECTOR,
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pins={"1": "TX0+"},
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),
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},
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nets={"TX0+": Net(
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name="TX0+", net_type=NetType.SIGNAL,
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pins=[PinConnection(component_ref="J3", pin_number="1")],
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)},
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)
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insts = recognize_physical_buses(g)
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logs = {i.logical_protocol_id for i in insts}
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assert "dvi" in logs
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assert "hdmi-1.4" not in logs
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assert "hdmi-2.0" not in logs
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def test_ieee8023_section2_100base_tx_not_10base_or_1000():
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cat = load_catalog()
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tx = next(p for p in cat.physical_interfaces if p.id == "100base-tx-mdi")
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by = {c.parameter: c for c in tx.constraints}
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_cite_ok(by["data_rate"])
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assert by["data_rate"].value == 100.0
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assert by["data_rate"].source.document.startswith("IEEE Std 802.3-2012")
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assert by["data_rate"].source.revision == "2012"
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assert by["data_rate"].source.section == "21.1"
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_cite_ok(by["cable_channel"])
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assert by["cable_channel"].value == 100.0
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assert by["cable_channel"].source_type == "CABLE"
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assert by["cable_channel"].source.section == "25.4.9.2.2"
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z = by["differential_impedance"]
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assert z.value_kind == "UNKNOWN"
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assert "TP-PMD" in (z.needed_document or "")
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ten = next(p for p in cat.physical_interfaces if p.id == "10base-t-mdi")
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tby = {c.parameter: c for c in ten.constraints}
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_cite_ok(tby["data_rate"])
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assert tby["data_rate"].value == 10.0
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assert tby["data_rate"].source.revision == "2015"
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assert tby["data_rate"].source.section == "14.1.1"
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assert tby["data_rate"].source.page == "374"
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_cite_ok(tby["cable_channel"])
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assert tby["cable_channel"].value == 100.0
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assert tby["cable_channel"].source_type == "CABLE"
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assert tby["cable_channel"].source.section == "14.4.2.2"
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assert tby["differential_impedance"].value_kind == "UNKNOWN"
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assert "PCB" in (tby["differential_impedance"].needed_document or "")
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gbe = next(p for p in cat.physical_interfaces if p.id == "1000base-t-mdi")
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gby = {c.parameter: c for c in gbe.constraints}
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_cite_ok(gby["data_rate"])
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assert gby["data_rate"].value == 1000.0
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assert gby["data_rate"].source.revision == "2012"
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assert gby["data_rate"].source.section == "40.1"
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assert gby["data_rate"].source.page == "179"
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_cite_ok(gby["cable_channel"])
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assert gby["cable_channel"].value == 100.0
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assert gby["cable_channel"].source_type == "CABLE"
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assert gby["cable_channel"].source.section == "40.7.2.2"
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assert gby["differential_impedance"].value_kind == "UNKNOWN"
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_cite_ok(gby["peak_differential_output"])
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assert gby["peak_differential_output"].value == 0.67
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assert gby["peak_differential_output"].source_type == "PHY"
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x = next(p for p in cat.physical_interfaces if p.id == "1000base-x-pcb")
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xr = next(c for c in x.constraints if c.parameter == "data_rate")
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_cite_ok(xr)
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assert xr.value == 1000.0
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assert xr.source.section == "36.1.1"
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fx = next(p for p in cat.physical_interfaces if p.id == "100base-fx-pcb")
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fxr = next(c for c in fx.constraints if c.parameter == "data_rate")
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_cite_ok(fxr)
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assert fxr.value == 100.0
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assert fxr.source.section == "26.1"
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