Quote:
Originally Posted by geekmaster
No, it is NOT correct (according to the your wire sigbal descriptions). Even though the photo of your adapter looks like it might be a USB serial adapter, the signals you describe are USB signals, not TTL serial signals. Perhaps that is why there is no green wire? Another problem is that if red really is +5V (as measured with a volt meter or o'scope), your serial adapter may be the wrong voltage.
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The green wire became blue only because i didn't have a wire to extended the green one from the usb cable...
Yes, the signal description are USB signals, because the only thing i did was to extend a "broken" usb cable that i had thinking it could do the trick....that's it...
Unfortunately, i can't follow you guys when you say you need this, that, read here and there....
Even reading around, honestly, i can't find clear and "simple" explanations on what it needs to be done and how to achieve the goal....
SO...the one i'm using now it's basically a USB cable with wires plugged into the serial port....that's it...
I understand that it's wrong...
So....again....do i need something like arduino etc eventually or i can just use a usb cable and maybe adjust it with resistors?????
In case i can use the usb cable, how do you pin it out to the connector??
Quote:
Originally Posted by geekmaster
The whole purpose of a USB serial adapter is to change the signalling protocol AND to shift the voltage levels. If is is indeed such a device, those wires are not as you described, but rather TTL serial Rx, TTL serial Tx, GND, and perhaps a power supply voltage. Read the specs for your device. It you have no docs, look up its make and model (or FCC part number if it has one) on the web...
Or use the "poke and prod" method -- see which wire fluctuates (with an oscilloscope) when you send data to it from a host computer. Do NOT supply power from the host computer to a kindle over this cable. And if the signal voltages are wrong, check out my TTL serial level shifter circuit.
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Thanks for the explanations but again....nothing that can be done or understood from someone that never dealt with this kind of things...perhaps linking a place where to buy "such a device" might be better....
Quote:
Originally Posted by knc1
OR -
See top section reserved for "sticky" threads?
The one titled "Serial Jailbreaking for Dummies"?
Follow the directions about making up a LV serial to USB connection (with the exception of the connection points).
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So, should i buy the "Jim's Board"?? 'cos i can't find anything in that thread on how to build the cable...
Seriously, i feel like being sent around and around and never arrive at the end point....
