On power-up, PWRONRSTn (PORZ) becomes de-asserted while WARMRSTn stays asserted (low).

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1

  • Symptom:

    • On power-up, PWRONRSTn (B15 – PORZ) – pin 2 of U16 becomes de-asserted while WARMRSTn (A10 – NRESET_INOUT) stays asserted (low).

Verifying voltages on Sitara.docx (19.3 KB)

Ulvation Schematic Rev 0.pdf (361 KB)

2

RESOLVED - Found error in the BOM - inverted part was placed on board.