Nb8511-pcb-mb-v4 Boardview Online

“ECN #442: Due to EMI issue on v3, inner2 ground plane has a cutout under U5. For v4, removed cutout. Ground and power planes now overlap in region D-17. Ensure sufficient dielectric. — L.C.”

“Show me the boardview again,” Maya said, leaning over Dev’s monitor. nb8511-pcb-mb-v4 boardview

“The boardview wasn’t wrong,” Maya said, sitting back. “It was telling us the truth. We just didn’t know how to read it.” “ECN #442: Due to EMI issue on v3,

“Overlap,” Maya whispered.

Dev zoomed into C442. “Here. The little bastard. The boardview says its positive terminal is net ‘+3V3_MEM,’ and its negative is ‘GND_REF.’ That’s fine. But when I meter it, there’s zero ohms between those nets. So either the boardview is wrong, or the physical board has a solder bridge somewhere.” ” Maya said