HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comment
Jon Titus
User Rank
Blogger
Re: Part IV: Fundamentals of Digital Debugging
Jon Titus   1/19/2012 4:09:12 PM
NO RATINGS
Q:  Since the questions seemed to have slowed down i will use some of your xbee knowledge. When xbees are set up to run encrypted, is this done once at assmebly time or with each power up of the board? I was hoping to remove xbees from a device and turn off encryption then reinstall them so i can watch and emulate what each pic is saying to each other remotely.

 

A: In an XBee module you would set the EE (AES Encryption Enable) bit to a logic 1.  They you would load the KY register with the 16-BYTE value for the 128-bit AES key.  You can use the free X-CTU software to configure an XBee module (via adapter and a USB cable), or you can send it an AT-type command or an API packet via the X-CTU software, or from a serial port on an MCU connected to the XBee module.  You cannot read the KY register.  Parallax and Sparkfun have USB-to-XBee adapters.  Look for my book, "The Hands-On XBee Lan Manual," which should come out in the sprint 2012.  It doesn't cover AES encryption, but now you know how to do it.



Partner Zone
Latest Analysis
Here's a variety of views into the complex production processes at Santa's factory. Happy Holidays!
The Beam Store from Suitable Technologies is managed by remote workers from places as diverse as New York and Sydney, Australia. Employees attend to store visitors through Beam Smart Presence Systems (SPSs) from the company. The systems combine mobility and video conferencing and allow people to communicate directly from a remote location via a screen as well as move around as if they are actually in the room.
Thanks to 3D printing, some custom-made prosthetic limbs, and a Lego set, one lucky dog and a tortoise has learned new tricks.
An MIT research team has invented what they see as a solution to the need for biodegradable 3D-printable materials made from something besides petroleum-based sources: a water-based robotic additive extrusion method that makes objects from biodegradable hydrogel composites.
With Radio Shack on the ropes, let's take a memory trip through the highlights of Radio Shack products.
More:Blogs|News
Design News Webinar Series
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
12/10/2014 8:00 a.m. California / 11:00 a.m. New York
11/19/2014 11:00 a.m. California / 2:00 p.m. New York
11/6/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Dec 15 - 19, An Introduction to Web Application Security
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  67


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service