TCS Pune

Brownout resets

Guided diagnostic

Brownout resets

Correlate resets with supply droop and load steps.

Medium riskESP32, PIC, AVR and other BOR-enabled MCUs

Tools checklist

  • Digital multimeternUSB data cablenCurrent-limited bench supplynLogic analyser or oscilloscope when indicated

Symptom-to-checkpoint workflow

Start at checkpoint 1. Record the reading, then choose Pass or Fail to follow the correct branch.

Checkpoint 1 · Reset reason

Method: Capture startup log or reset-status register

Expected: Brownout/BOR reason is present

⚠ Do not disable protection as the first fix.

Record this diagnostic run

Log in to save measurements and submit this run to an instructor.

Bench safety

Disconnect power before wiring changes or continuity testing. Confirm polarity and voltage limits. Use a current-limited supply for suspected shorts.

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