Quote:
Originally Posted by x23are
|
Save a copy of this link (also attached to this post):
http://www.prolific.com.tw/UserFiles...HXD_v1_4_4.pdf
The package pin-out is shown on page: 11 (Fig. 4-1)
Trace any connections to pin 4 (Vdd_325) on the package.
Ensure that pin 4 is not connected anywhere else on board.
If it is, disconnect it.
Now provide 1.8 volts (Positive (+) to pin 4) - Negative (-) to common ground.
This sets the Tx and Rx signal levels to 1v8 volts rather than 3v3 or 5v0.
(The chip will do the proper level shifting - see page:13 - Table 5-1 and page: 20 - Table 9-2e).
Either use an external source of the 1v8 (such as a watch battery or hearing aid battery or any Li/Fe battery you can find)...
OR
Find a source of 1v8 on the Kindle motherboard, one location on the PW2 is shown in this post:
https://www.mobileread.com/forums/sho...25&postcount=3
(Use the link in the picture's caption to get full sized picture - that is tp1706 on the motherboard.)
Then connect only the Tx, Rx, and Gnd pins of the adapter to the Kindle as you listed before.
- - - - -
For your own safety, check for any regulations against private ownership of strong cryptographic capable hardware and software in your country.
Some of the countries in your part of the world have a tendency to shoot private citizens that own such devices.
Yes, the Kindles are such devices, and both Amazon update packages and our update packages use it.
I suppose you could play dumb and claim to have found it where a foreigner dropped it.
Although the wires to the serial port (which allows you general use access) might be a bit hard to explain.