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PN7462 RF field on problem

Question asked by Lukas Cepec on Jul 30, 2019
Latest reply on Jul 31, 2019 by Kan_Li

PN7462 custom board, problem with RF field on with NFC Cockpit. I designed my own board with PN7462. It based on development kit OM27462CDK. My schematic is in attachment. I have som FW to EVB when board is login into windows as COM port. this same FW I flashed to my board. When I tried to turn on RF field i gave erro message that RF field cannot be turn on. But on oscilloscope I measured that field is on. In my schematic if i desoldered B4 than i dont have problem but of course when i tried measure field was off.

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