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usb c - Are USB type C pull resistor neccesary on CC and SBU pins? - Electrical Engineering Stack Exchange
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Pi4 not working with some chargers (or why you need two cc resistors) – The blog of Tyler Ward (aka scorpia)
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usb c - Can USB Type-C 2.0 upstream (device) connect its CC pins and share a pull-down? - Electrical Engineering Stack Exchange
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Implementing USB 2.0 connectivity with a Type-C connector - Community Tips 🧑🔧 - AISLER Creative Community
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