Use local USB3.0 port of Rpi4 with USB3.0 hub

#8

@setq Do I have to reverse the cable for this A-A cable?

#9

No reverse. Simply connect them one by one.

#10

I made A-A cables by myself. It works now. Thanks @setq!

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#11

Aha! Amazing~~~

#12

Hi,
how did you connect the plugs ? no crossing data cable or anything else ? Just connect pin1 to pin1, pin2 to pin 2 … and so on ?
Best regards

#13

I see that I made simmilar topic :frowning:


But for me it is not working
I use this hub https://www.alza.sk/axagon-hue-p1a-round-hub-usb-a-d6588597.htm

Conection over USB Hub
#14

I bought Orico with chip VL815 and for me it doesn’t work :frowning:

#15

I bought another usb hub Orico F4U3-U3 also with mentioned chip VL817, but for me it doesn’t work.
System find only hub not devices behind this hub :frowning:

#16

setq, laughterwym and me needed to made their A-A cables by themself

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#17

Finally I got it working and now I know that where was problem.
It was cable problem.
I used connection cable which works only with direct connection to one of usb port on RPi. When I connect it via HUB it was not working.
Now I tried connection together with connection and extension cable, system find usb device via HUB.
So now I have two possibilities.

  1. two cables: connection + extension
  2. make my own (by reconfigure existing which I have), maybe somebody can help me how I can make it :smiley:
#18

An A-A connection cable (= non 1:1 wiring) plugged in an extension cable (= 1:1 wiring) stays a (than longer) connection cable (= non 1:1 wiring)

#19

I made another test. If I connect connection + extension cable both USB3 it doesn’t work only when I use one of them USB2 (in my case extension).
Best way will be to make my own from existing connection cables

#20

before starting USB-3 cable DIY
you may give a short extension cable in combination with your U connector a chance
as indicated here in Phase I Heat issue solved by separating SATA HAT and Pi

21011683
21011683.jpg800×600 80.8 KB

I could imagine those 30 cm extension could match that requirements
female part surface should be plastic and thickness not exceed 9.2 mm


Otherwise those will work for sure but are 1m long

#21

in case you still want your HAT mounted you might follow the approach
by using 2 short extentions on HAT connecting to U-Connector
and 2 other short extentions connecting U-Connector to hub

u-ext

#22

I made some measurements.
U connector is made like extension cable, connections are straight.
Connection cable have switched high speed data cables and standard (usb2) are straight. This is reason why is working with usb3 connection cable + usb2 extension which I mentioned above.
https://www.newnex.com/technology-articles-usb-3-a-to-a-cable-wiring-option.php

#23

USB-2 speed was not sufficient for my purposes
therefore I headed for an USB-3 solution

#24

understand so I need to make my own usb3 cable and switch data lines.
I want to have hat on top my rpi

#25

you don’t need to DIY for USB-3
see picture and text in posting above
in case you still want your HAT mounted …

u-ext

#26

Yeah you mean 4x extension cable am I right?
But in this cas I need to buy 4x new extension cable :smiley:
or 2x DIY cable made from 2x connection cable which I allready have :smiley:

#27

yes - your choice 4x extension or DIY - good luck :slight_smile:

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