Project Overview

The original main controller chip is end-of-life and no longer supplied by the semiconductor vendor. The project selects a pin-compatible alternative chip as the replacement solution.

Validation

Hardware peripheral compatibility review, schematic minor adjustment, firmware migration and adaptation are completed in sequence.

A full validation suite is arranged, covering power rail stability, RF communication performance, long-term burn-in test and all functional case verification. Difference analysis report between the old and new chip is documented and archived.

ECN & Transition

Formal ECN document is released, covering impact assessment, validation record and phased stock transition plan. Production, warehouse, procurement and quality teams are aligned to clear old stock gradually and switch to the new component smoothly.

Inventory consumption rhythm and order notice for customers are well coordinated, so the transition stays predictable for every stakeholder.

Risk Control

The whole change is managed tightly to avoid unexpected production interruption and customer delivery delay. Post-switch quality sampling is performed continuously to catch subtle compatibility risks in mass production.