http://www.dtool.com Copyright 2008 Fri, 06 Jun 2008 15:38:33 +0000 http://wordpress.org/?v=1.2.1 http://www.dtool.com/index.php?p=26 http://www.dtool.com/index.php?p=26#comments Fri, 06 Jun 2008 03:39:41 +0000 General http://www.dtool.com/index.php?p=26 Finished this board last week. This is the first daughterboard I've seen for connection w/ the GPIO pins on an AVR32 AP7000. It's required to attach a touch screen Hantronix HDA351T-LV 320x240 TFT display to a board such as the NGW100. This is a pretty simple board - it also ... http://www.dtool.com/wp-commentsrss2.php?p=26 http://www.dtool.com/index.php?p=25 http://www.dtool.com/index.php?p=25#comments Fri, 25 Apr 2008 14:46:30 +0000 General http://www.dtool.com/index.php?p=25 Here is a schematic of the new prototype Wee-Gee boards. I just shipped these to China where they'll make half a dozen boards for testing. The end product (without batteries) is about the size of a pack of cigarettes... http://www.dtool.com/wp-commentsrss2.php?p=25 http://www.dtool.com/index.php?p=23 http://www.dtool.com/index.php?p=23#comments Mon, 03 Mar 2008 03:05:50 +0000 General http://www.dtool.com/index.php?p=23 Finally; this is something I've been working on, on & off, for the past 18 months. It's a small box that enables your voice (and data) to securely wriggle through complicated NATs in order to connect you & a friend. For this to work, you & the person you're communicating ... http://www.dtool.com/wp-commentsrss2.php?p=23 http://www.dtool.com/index.php?p=18 http://www.dtool.com/index.php?p=18#comments Mon, 08 Oct 2007 03:22:57 +0000 General http://www.dtool.com/index.php?p=18 Ether is a company that lets experts get paid for talking about what they know. They protect the expert's privacy as well. http://www.dtool.com/wp-commentsrss2.php?p=18 http://www.dtool.com/index.php?p=17 http://www.dtool.com/index.php?p=17#comments Mon, 08 Oct 2007 03:21:34 +0000 General http://www.dtool.com/index.php?p=17 I've been thinking & writing about the state of information security eight years from now, & I'll be putting up some of the pieces here. First, what will the Network look like? Many people believe that the 50,000 foot view of networked systems beyond this generation will be characterized by a ... http://www.dtool.com/wp-commentsrss2.php?p=17 http://www.dtool.com/index.php?p=13 http://www.dtool.com/index.php?p=13#comments Sat, 12 Aug 2006 13:37:42 +0000 General http://www.dtool.com/index.php?p=13 Although the ColdFire architecture is closely related to the Motorola (now Freescale) m68K there are many simplifications to the RISC instruction set. The MCF5474 microprocessor is a member of the MCF547x pin compatible ColdFire family. It is based on the V4e ColdFire core and features multiple connectivity peripherals including ... http://www.dtool.com/wp-commentsrss2.php?p=13 http://www.dtool.com/index.php?p=12 http://www.dtool.com/index.php?p=12#comments Thu, 20 Jul 2006 13:30:21 +0000 General http://www.dtool.com/index.php?p=12 I'm currently programming a V4e Coldfire with a MCF5474 Fire Engine module that drives two fast ethernet controllers, serial, CAN, and and I2C bus. The base RTOS is a highly customized linux 2.6.15 kernel, and in order to build this kernel I have to, of course, build the M68K-specific compilation ... http://www.dtool.com/wp-commentsrss2.php?p=12 http://www.dtool.com/index.php?p=8 http://www.dtool.com/index.php?p=8#comments Sat, 01 Apr 2006 22:38:37 +0000 General http://www.dtool.com/index.php?p=8 My new book is out. If you click through the link, you can buy it at Amazon. The Title of the book is, "Practical VoIP Security". It is designed for three related purposes - to educate data system administrators about the PSTN and how VoIP protocols work, and how these should ... http://www.dtool.com/wp-commentsrss2.php?p=8 http://www.dtool.com/index.php?p=6 http://www.dtool.com/index.php?p=6#comments Sat, 25 Feb 2006 03:37:14 +0000 General http://www.dtool.com/index.php?p=6 H.235 is expected to operate in conjunction with other H-series protocols that utilize H.245 as their control protocol and/or use the H.225.0 RAS and/or Call Signaling Protocol. H.235’s major premise is that the principal security threat to communications is assumed to be eavesdropping on the network, or some other method ... http://www.dtool.com/wp-commentsrss2.php?p=6 http://www.dtool.com/index.php?p=5 http://www.dtool.com/index.php?p=5#comments Sat, 25 Feb 2006 03:35:05 +0000 General http://www.dtool.com/index.php?p=5 I made a mistake on the previous board revs by misconnecting some address lines [SA:0-SA5] that both of the ethernet chips require in order to read from and write to their respective registers. This required some board redesign and some testing on a breadboard. Here's a closer look ... http://www.dtool.com/wp-commentsrss2.php?p=5