Rockbox.org home
release
dev builds
extras
themes manual
wiki
device status forums
mailing lists
IRC bugs
patches
dev guide



Rockbox mail archive

Subject: RE: serial interface uses
From: Chris Holt (amiga2k_at_cox.net)
Date: 2003-09-26


On Fri, 26 Sep 2003 14:12:36 -0500, Chris Muth wrote:
> On 9/26/03 at 12:05 PM Chris Holt wrote:
>
>>
>> Roger that. I have a cable I can hook up to my Handspring Visor with
>> some level conversion circuitry built into the plug. This cable
>> allows me to hook the PDA directly to a standard external modem and
>> connect to the internet.
>>
>> AFAIK, the serial port on most PDAs is pretty generic, the cradle
>> determines whether you hook to USB or serial ports on the computer.
>>
>> Chris
>>
>
> Not quite. The PDA must itself have a USB port in order to sync via
> USB. To sync via standard RS-232 (serial), again it must itself have a
> serial port.
>
> The cradle is usually just a fancy plug for the bottom of the PDA. In
> some cases the cradle will have level shifting hardware for the RS-232
> interface.
>
> While there might be exceptions, this is generally the rule.
>
>
> -Chris Muth

Remember the "S" in USB stands for Serial. :)

This page might be enlightening.

http://www.gpskabel.de/info/cradlemode.htm

Chris



Page was last modified "Jan 10 2012" The Rockbox Crew
aaa