Hardware–Software Integration Testing — Isolate the Failure

Описание: Learn hardware–software integration testing in plain English with a checked isolation model. The demo diagnoses eight controlled failures at the correct first boundary instead of changing the build, board, cable, power, and tool at the same time.

The lesson follows a safe order: power, build identity, configuration, source signal, cable, receiver, protocol, and independent measurement.

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Chapters
00:00 A failed message does not tell you which integration layer failed
00:12 Integration testing proves connected parts agree at their boundary
00:24 Check ratings, ground, supply, current limit, and reset before signals
00:35 Move from broad prerequisites to the exact failing boundary
00:48 Nine controlled states include one healthy path and eight faults
00:58 Low power stops the investigation before protocol work
01:11 Read the running build from the device
01:22 Compare pins, clocks, modes, speed, and feature settings
01:33 Measure whether the controller produces the expected output
01:44 Compare both ends of the connector and cable
01:58 A signal can reach the board but fail at the receiving pin or input
02:09 Correct electrical edges can still decode with the wrong rules
02:22 The tool can be the broken part of the story
02:36 Use one known path to test the bench before a new DUT claim
02:46 Swap or change one controlled element at a time
02:58 Join firmware events with physical measurements
03:10 A healthy interface path is only the start of integration testing
03:23 Turn the isolation ladder into health checks and failure evidence
03:35 The demo proves the decision order, not a real bench
03:48 Eight faults isolate cleanly without guessing or random changes