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Old 03-04-2012, 07:20 AM   #10
knc1
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Posts: 17,212
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Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
Quote:
Originally Posted by Frenko View Post
This is surely the biggest breakthrough I had so far.
Unfortunately it's not reassuring at all.
On the terminal, the line
Code:
cat: can't open '/sys/devices/platform/charger/globals': No such file or directory
is repeated several times.
I'll go to sleep and repeat the experiment tomorrow, in the remote eventuality of a different outcome I'll update the thread.

Cheers,
f
That is actually good news.
The device is talking to your terminal now, the serial cable hookup must be correct.

Since I have never (yet) seen what the 'normal' outputs on the serial line are, that may be 'normal' or it may be another problem.
But it is readable text

So at least the terminal can receive characters, it can probably transmit them also.

Note Be careful of using a "continuity tester" to "ring out" these connections. They may well produce a voltage or electrical noise spike that is more than the devices can withstand.
The FTDI cable is documented to withstand 5v (even on the 1.8v model cable) - no telling if the Kindle devices can do that.
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