Hey there! Live chat suggested someone here might be able to help me troubleshoot… I’ve been working on some custom USB C to USB A cables recently (4 pin USB 2.0 only). Finished my first cable, plugged it in with the excitement of biting into a new flavour of ice cream for the first time and… noth…

When looking at the connectors on the USB-A do you have the Blue wire to pin 1 or Pin 4. From the angle of the picture it appear it is Pin 1 which is then connected to D1 which connects to B1. Per this diagram Left being USB-A and Right Being USB-C Pin 1 would go to A4, B4, A9, B9. A simple continu…

Pretty sure I have looking at the datasheet. If I’ve got something wrong would you be able to point it out?

Your Shield isn’t connected to the Type-C, double check that all the GND’s and Vcc’s are correctly connected together. Also verify A5 is connected as mentioned in Note 1: Regards,

Thanks Robert, Forgive my ignorance, I presumed all the GND and VBUS pins in the PCB were traced together within the PCB. Is that not the case? Can’t understand why they wouldn’t be. Am I meant to wire together A1, B1, A12 and B12, as well as A4, B4, A9 and B9? I only have some 10k and 330 ohm res…

You’re my hero! I’d been using this diagram without realising that the plug pins were facing away from me as opposed to my USB-A which has the both plug and cable side pins facing towards me. I had the USB A wired in reverse!!! [Capture] Desoldered, flipped it, resoldered, and it’s now functional! …

Help with troubleshooting inline USB C connector

Maker, DIY

RobertCNelson June 10, 2020, 3:29pm 2

Hi @Sxander, double check your wiring against USB’s documents:

“USB Type-C® Cable and Connector Specification Revision 2.0” Page 78

https://www.usb.org/documents

Regards,

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Help with troubleshooting inline USB C connector

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