Sparrow Active Load M.2 module
ESH10000536 · Rev R2
Lightweight shell — full new_project workflow pending. Imported as dependency of ESH10000633 R1.
Everything here lives inside a Project (a code + revision, e.g. ESH10000540 R3).
The backbone is the V-model, read top-to-bottom: define what the product must do, plan how to prove it,
execute the proof on real units, then learn from the field — and the Loop closes back up to the top.
This map is live: a block is green with a count when this project actually has that entity,
and dashed/dim when it’s empty. Click any block to open its tab; hover for details.
Arrows are the meaningful links; the implicit “belongs to this Project” edge is left out for legibility.
What each thing means
- Requirement
- One thing the product must do or satisfy — the “what”.
- Test Case
- A defined check that proves one or more requirements — the “how we prove it”. A verified_by trace link ties a test case to the requirement(s) it covers; that link is exactly what Coverage % counts. (So: a test case refers to the requirements it verifies.)
- Verification Plan
- A named grouping of test cases, approved before a test campaign and optionally gated by a milestone.
- Verification Record
- The result of running one test case against one unit: pass / fail / error / na. This is the evidence a requirement is actually met.
- DUT
- Device Under Test — an individual physical unit (by serial number) that records and test data attach to.
- Deviation
- A documented waiver against a verification record (e.g. accept a known non-conformance, with justification).
- Entry
- A knowledge note: a decision (settled choice), notice (assumption / risk / open question), issue (tracked problem), or concept (idea under exploration). It can attach to any other entity.
- Design Rule
- A reusable, checkable engineering constraint. Running the checks turns each violation into a Conflict.
- Conflict
- An open flag raised by a failed design-rule check (or an end-of-life / component-library issue) that needs resolving.
- Milestone
- A dated gate; verification plans can be tied to it.
- Field Issue (RMA)
- A failure reported from the field on a returned unit; Root-Cause Analysis explains why it happened.
- The Loop (S-16)
loop_tracereconciles a field issue against that unit’s own verification record (did it pass at the edge of the band?).closes_looprecords the corrective decision or design rule so the lesson is captured — and clears the project’s open-loop count.- Interface / Port
- A contract between projects; each port can be driven by a requirement (and cascade one into the connected project).
- BOM Component
- A part on this project’s bill of materials, optionally linked to the shared Component Library.
- GRR Study
- A Gauge R&R study measuring how repeatable a test case’s measurement is.
- Test Data
- Production / Maestro run results recorded against DUTs — the population behind a single verification record.
Timeline
Color = derived gate state · hover a tile for its note.Status & gates
Chronological — Release is the final gate. Derived & read-only; edit viatrace_milestone_* tools.Release / Readiness not started 3/6 met
pending Requirements approved
- REQ-EL-002: draft
- REQ-EL-004: draft
- REQ-EL-006: draft
- REQ-EL-001: draft
- REQ-EL-003: draft
- REQ-EL-005: draft
- REQ-EL-007: draft
pending Coverage ≥ 100%
- No requirements in scope
pending All test cases pass
- 0/7 passed
- 7 not yet run
Test Cases
Coverage — 0.0% · Done — 0.0%
| Code | Kind | Title | Severity | Scope | Status | Milestone | Created |
|---|---|---|---|---|---|---|---|
E-001 |
notice | VLOAD*_OUT per-channel power analysis — loop-gain ceiling + thermal budget | info | record | open | — | 2026-06-09 |
E-002 |
notice | R3: investigate improved thermal coupling from Q1/Q2 to heatsink | info | next_revision | open | — | 2026-06-09 |
E-003 |
notice | R3: investigate why isolator U5 (ISOW7741) does not work — current workaround unmounts U5/Q4/R2/R3 and mounts R65–R69 | warning | next_revision | open | — | 2026-06-09 |
E-004 |
notice | DUT S/N A002854 — broken measurement on CH1 (J4) | warning | action | open | — | 2026-06-09 |
E-005 |
concept | FET+shunt damage may occur at load TURN-OFF (PSU overshoot + OPA2192 ringing → secondary-breakdown transient) | info | action | open | — | 2026-06-09 |
E-006 |
concept | R3 spec: hardware abuse-tolerance against load disconnects (TVS D-S clamp + V_LOAD-ceiling decision) | info | next_revision | open | — | 2026-06-09 |
E-007 |
notice | Rework: DUTs S/N A002872 + A002877 — replace shunt resistors + MOSFETs | warning | action | open | — | 2026-06-09 |
E-008 |
notice | Rework: DUT S/N A002874 CH0 (J4) — replace shunt + MOSFET | warning | action | open | — | 2026-06-09 |
E-009 |
notice | [E-003] Root-cause analysis of "I2C doesn't work through U5 (ISOW7741)" [E-003]. TOPOLOGY (read from schematic sheet 1): bidirectional SDA… | info | record | open | — | 2026-06-18 |
E-010 |
concept | Isolated-I2C replacement options for the U5/ISOW7741 bridge (E-003 fix, next revision) | info | next_revision | open | — | 2026-06-18 |
E-011 |
issue | AL board S/N A002878 — CH0 MOSFET shorted (second board with same fault mode after A002854) | warning | action | open | — | 2026-06-18 |
E-012 |
issue | AL board A002870 CH1: AL.02 marginal fail — IMEAS / PSU truth low by ~10 mA at 400 mA / 16 V (CH0 clean) | warning | action | open | — | 2026-06-18 |