Diagnostics
- EthTrcv Part 4 — WakeUp Handling & Diagnostics
The fourth and final part of the EthTrcv core series: WakeUp handling via PHY pin and in-band signaling, the interplay with EcuM and EthSM, and how to diagnose the most common runtime problems on the transceiver.
- EthTrcv — Loopback Modes for Testing and Diagnostics
How internal, external, and remote loopback work inside the Ethernet PHY, how EthTrcv drives them, and why they are indispensable for end-of-line testing and fault isolation.
- EthTrcv — Reading MDIO and PHY Registers Directly
Register-level MDIO diagnostics for EthTrcv: reading standard and vendor registers, interpreting link status and error flags, and a case study of a link that refuses to come up.
- EthSwt — Diagnostics, Loopback & Test Modes on Switch Ports
The surprising fact-check finding: most of EthSwt's port diagnostic APIs are pure forwarders to the referenced EthTrcv instance, not switch-native functionality.