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Beginners • Re: USB Y-cable

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That configuration will raise the USB current limit. Are you sure you put the right thing (exactly) in the config.txt file in the right place?
By adding it, you are assuming responsibility for the PSU, promising your Pi that it will not run out of current when it allows 1A2 to the USB. If you are wrong, the Pi will crash and may corrupt the OS.
Well, I am looking at `pinctrl` to verify

Code:

miko@raspberrypi:~ $ pinctrl | grep MAX49: op dh pd | hi // EN_MAX_USB_CUR/GPIO49 = output               ^^  From what I understand this "hi" means that the directive was applied properly
But again I don't have a proper understanding of what I actually see, I am just following some googled up advice

Having a crash and a corrupted OS is not something I worry about - there is nothing to lose yet
How are you measuring the HDD current and voltage? Unless you have professional equipment capable of catching fast peaks, it is quite possible that the HDD peak current is causing a short voltage dip, too short to see on a meter but enough to prevent correct operation. If you are measuring 1A1 the actual peak could easily be over 1A6 (in which case even an official PSU won't help).
I am using a cheap USB inline meter, and yes it well might be that it doesn't show me the fast peaks. I'll see if I can use a proper multimeter, though I don't have an oscilloscope
A powered hub would ensure that the HDD can have 5V 3A (assuming the hub can supply 3A on that port), which should be enough. If you have a hub meeting that requirement, it would be worth trying as a test, if not a final solution. [EDIT: to acknowledge the reply above, posted while I typed.]
But that would be the same as getting an official PSU, right?
EDIT: I got it all wrong. I understand the idea now, however this doesn't seem feasible still (no power sockets available, and no such USB hub in my closet)
Does the HDD work on any other system you have? (If testing on a Windows system, do not accept any offers to format the HDD!)
Yes, it works well with my laptops, no issues ever

Statistics: Posted by enraged tomato — Thu Jul 11, 2024 10:42 am



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