U-Boot Port Acceptance: Boot Media, Environment and Recovery
Accept a U-Boot port with explicit boot-source policy, persistent-environment tests, complete Linux handoff and a recoverable failure matrix.
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Custom Linux Board Bring-Up: From Power Rails to the Application
Bring up a custom Linux board through measurable power, bootloader, DDR, storage, device-tree, userspace and recovery milestones.
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Intermittent RTOS Crashes: Logging, Core Dumps and a Reproducible Test
Preserve exact-build fault evidence, design bounded RTOS event logs and turn intermittent failures into controlled reproduction and regression tests.
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MCU Firmware Outsourcing: What to Put in the Acceptance Requirements
Define MCU firmware acceptance with testable interfaces, timing and memory budgets, fault injection, diagnostic evidence and a reproducible handover package.
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Reproducible Buildroot Delivery: From a Booting Image to a Release Kit
Define reproducible Buildroot delivery with pinned inputs, clean rebuilds, artifact comparisons, recovery tests and a handover kit another engineer can use.
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Ethernet, Wi-Fi and Cellular Failover: What an Acceptance Test Should Cover
Plan industrial IoT gateway failover tests for Ethernet, Wi-Fi and cellular, covering path health, MQTT recovery, buffering and measurable acceptance criteria.
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Serial Device Server or Modbus Gateway? Start with the Host Protocol and Existing Wiring
Choose a serial device server or Modbus gateway from the host driver, frame format, and existing HMI wiring. Includes a conditional compatibility checklist.
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Modbus RTU to MQTT: Register Mapping, Byte Order and Scaling
Map Modbus RTU registers to MQTT correctly. Learn address offsets, FC03/04, signed values, byte and word order, scaling, freshness and QoS limits.
