> -----Original Message----- > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf > Of YES NOPE9 > Sent: 03 December 2009 02:45 > To: Microcontroller discussion list - Public. > Subject: Re: [EE] Mystery of USB battery charger > > > > > On Dec 2, 2009, at 6:17 PM, Xiaofan Chen wrote: > > > > On Thu, Dec 3, 2009 at 1:29 AM, YES NOPE9 wrote: > >> I want to thank all of you who answered my query. Some of you did > >> not > >> seem to read my original posting. I get a lot fun and information > >> out > >> of all of the responses. > >> > >> I wanted to reiterate that since my "official" BlackBerry charger is > >> not likely to have any smarts in it and because the Kensington > >> charger > >> would not even know what a BlackBerry is ; and because both of these > >> chargers work to recharge my BB battery ; there must be something > >> very simple and different about those two chargers. I have tried two > >> or three other USB chargers plus my DIY charger and they do not work. > > > > The charger does not have the intelligence. But your Blackberry > > has the intelligence. By leaving the D+/D- unconnected, your > > DIY charger disables the Blackberry intelligence. > > -- > > Xiaofan http://mcuee.blogspot.com > > What is your suggestion for connecting the Data lines ? > Gus Why not check how the pins on your BlackBerry and Kensington charger are configured and copy that? ======================================================================= This e-mail is intended for the person it is addressed to only. The information contained in it may be confidential and/or protected by law. If you are not the intended recipient of this message, you must not make any use of this information, or copy or show it to any person. Please contact us immediately to tell us that you have received this e-mail, and return the original to us. Any use, forwarding, printing or copying of this message is strictly prohibited. No part of this message can be considered a request for goods or services. ======================================================================= -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist