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From: Pavel Machek <>
To: Sebastian Reichel <>
Cc: Tony Lindgren <>,
	kernel list <>,
	linux-arm-kernel <>,,,
Subject: Re: 4.16-rc5 on Motorola Droid 4
Date: Wed, 21 Mar 2018 20:32:26 +0100	[thread overview]
Message-ID: <20180321193225.GA20561@amd> (raw)
In-Reply-To: <20180320170029.rv3u5wlvqxfl7z2v@earth.universe>

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> > Maybe get somebody to help you locally with the debug cable
> > soldering? :)
> I suppose people from your hackerspace can help you. It's really
> easy to do. Soldering can be avoided btw. You can just use a pair
> of scissors to cut a USB -> Micro USB cable and use a knife to remove
> isolation. Then screw each of the 4 wires into a terminal strip.
> There are USB-TTL adapters available, that have an attached cable.
> If you also cut the connector from such a cable and connect it to
> the other side of the terminal strip you are done. No soldering
> involved ;)

Hehe. After some more experiments, it looks like hardware hacking can
not be avoided :-(.

I should have enough connectors, but I don't know the pinouts. I also
seem to have D-SUN USB to TTL from you (thanks again!).

You say TTL, Tony says 3V3... so I guess the port can survive both?

Ok, I guess I really only need to connect GND, and then D- to RXD?

So... where is the D-.. aha, got it. I hope USB has to be robust
enough against me making experiments?

I connected it the best way I could, but I do not get data in minicom,
and RXD led stays lit. I guess that is not a good thing :-(.


(cesky, pictures)

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  reply	other threads:[~2018-03-21 19:32 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-18 22:04 4.16-rc5 on Motorola Droid 4 Pavel Machek
2018-03-20 14:03 ` Tony Lindgren
2018-03-20 17:00   ` Sebastian Reichel
2018-03-21 19:32     ` Pavel Machek [this message]
2018-03-21 20:31     ` Pavel Machek
2018-03-21 21:57       ` Tony Lindgren
2018-03-21 22:13         ` Pavel Machek
2018-03-27 21:21     ` Pavel Machek
2018-03-30 12:19       ` Sebastian Reichel
2018-03-30 21:17         ` Pavel Machek
2018-03-31  0:40           ` Sebastian Reichel

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