Why do USB-PD Traces sometimes show volage on CC1 AND CC2, and other times show voltage on only CC1 OR CC2?
![How to design a proper USB-C™ power sink (hint, not the way Raspberry Pi 4 did it) | by Benson Leung | Medium How to design a proper USB-C™ power sink (hint, not the way Raspberry Pi 4 did it) | by Benson Leung | Medium](https://www.scorpia.co.uk/wp-content/uploads/2019/06/image-300x292.png)
How to design a proper USB-C™ power sink (hint, not the way Raspberry Pi 4 did it) | by Benson Leung | Medium
![Share about Firmware-Hardware and the latest USB Type-C PD technology. : USB Type-C Configuration Channel (CC) pin function (English version) Share about Firmware-Hardware and the latest USB Type-C PD technology. : USB Type-C Configuration Channel (CC) pin function (English version)](http://1.bp.blogspot.com/-MeDQDtxyuSE/U_F-lcfK78I/AAAAAAAAAfM/2kMzMfo8GIE/s1600/TypeC_host_device.jpg)
Share about Firmware-Hardware and the latest USB Type-C PD technology. : USB Type-C Configuration Channel (CC) pin function (English version)
![Is it necessary to connect the CC1/CC2 pins to ground with a 5.1k resistor? I would like to make a pcb which has a female usb type c port which converts to Is it necessary to connect the CC1/CC2 pins to ground with a 5.1k resistor? I would like to make a pcb which has a female usb type c port which converts to](https://preview.redd.it/is-it-necessary-to-connect-the-cc1-cc2-pins-to-ground-with-v0-1jgv4d4glr0a1.png?width=640&crop=smart&auto=webp&s=c6ea2e2cc30809c2590b1fe62d20a02bfc314ceb)
Is it necessary to connect the CC1/CC2 pins to ground with a 5.1k resistor? I would like to make a pcb which has a female usb type c port which converts to
![Simple way to use USB Type-C to get 5V at up to 3A (15W) - Power - Electronic Component and Engineering Solution Forum - TechForum │ Digi-Key Simple way to use USB Type-C to get 5V at up to 3A (15W) - Power - Electronic Component and Engineering Solution Forum - TechForum │ Digi-Key](https://global.discourse-cdn.com/digikey/original/2X/c/c3a86011a5b4fe495bd91157570bb253474ca28a.png)
Simple way to use USB Type-C to get 5V at up to 3A (15W) - Power - Electronic Component and Engineering Solution Forum - TechForum │ Digi-Key
![Álvaro Prieto on Twitter: "USB-C cables only pass through CC1. In order to use DAM, we need to have a USB-C plug (or custom cable) to connect both CC1 and CC2. If Álvaro Prieto on Twitter: "USB-C cables only pass through CC1. In order to use DAM, we need to have a USB-C plug (or custom cable) to connect both CC1 and CC2. If](https://pbs.twimg.com/media/FMJSLmHVQAI5z9C.png)
Álvaro Prieto on Twitter: "USB-C cables only pass through CC1. In order to use DAM, we need to have a USB-C plug (or custom cable) to connect both CC1 and CC2. If
![usb c - Can USB Type-C 2.0 upstream (device) connect its CC pins and share a pull-down? - Electrical Engineering Stack Exchange usb c - Can USB Type-C 2.0 upstream (device) connect its CC pins and share a pull-down? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/Hb6M5.png)
usb c - Can USB Type-C 2.0 upstream (device) connect its CC pins and share a pull-down? - Electrical Engineering Stack Exchange
![Amazon.com: 2pcs 12 inch Type-C USB C Male PD Power Cable 5A Fast Charge 6 Wires CC1 CC2 Pigtail DIY, 1 feet : Electronics Amazon.com: 2pcs 12 inch Type-C USB C Male PD Power Cable 5A Fast Charge 6 Wires CC1 CC2 Pigtail DIY, 1 feet : Electronics](https://m.media-amazon.com/images/I/51LZ09LqRxL._AC_UF1000,1000_QL80_.jpg)