UART loopback test
Verify transmit and receive paths with a controlled loopback.
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Archives: Diagnostic Guides
I²C scanner and bus faults
Scan addresses and diagnose stuck SDA/SCL or missing acknowledgements.
Read more →Serial garbage diagnosis
Resolve baud, framing, clock and voltage mismatches.
Read more →Watchdog resets
Find blocked tasks, long critical sections and missed watchdog service.
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