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Abhikhurana writes "I work for a company which designs a variety of video surveillance devices (such as MPEG4 video servers). Traditionally, these products have been based on proprietary OSs such as Nucleus and VxWorks. Now, we are redesigning a few of our products and I am trying to convince my company to go down the Linux route. Understandably, our management is quite skeptical about that and so I was asked by our CTO to recommend a few RTOSs which have mature networking stacks and which work well on ARM platform. I know that there are many embedded Linux based distributions out there. There are commercial ones such as Montavista, LynuxWorks, free ones such as uclinux, muLinux and some Linux like distros such as Ecos. What is the most stable and best community supported embedded Linux distribution out there?"

magic_user writes "Now that Mattel's JuiceBox can be had for $12 (Target, WalMart), this seems like a perfect toy for hackers. I've found a picture frame hack but what I'm really looking for is a way to play my own videos on it. It runs uclinux so this shouldn't be too hard, right? "

An anonymous reader writes "Atmel is sampling the first in a new line of 32-bit system-on-chip processors that could spell the death of the venerable 8-bit microcontroller market by offering 32-bit performance at 8-bit pricing. Priced as low as $3 each, the AT91SAM7 chips with ARM7TDMI RISC CPU cores and built-in RAM/flash memory may even be able to run a form of Linux called uClinux. The death of the 8-bit uC market has long been predicted -- sounds like the end is nigh!"

An anonymous reader writes "LinuxDevices reports on the world's first Linux computer to fit inside a CompactFlash card. The 'Compact Flash Computer' (CFC) can be mixed and matched with third-party CF cards to instantly create minuscule Linux systems based entirely on CF cards. A wide variety of third-party CF peripheral cards can be used with the CFC, including RS232/485, Ethernet, Bluetooth, USB, 802.11, GSM, GPRS, GPS, and more. A combination power supply / bus expander module on a separate CF card, as well as a tiny 8-slot CF card backplane, are available as options." An anonymous reader adds "The card is based on a Freescale MPC5272 system-on-chip processor and contains 32MB of SDRAM and 8MB of Flash memory, and it comes with a uClinux based operating system and GNU development/debug tools."

Doc Ruby writes "LinuxJournal has an intro to uCLinux by David McCullough, one of the project developers. Specific techniques are discussed for Linux programming on this version, that runs on devices without the MMU that the Linux VM usually requires. Developers can make Linux apps run on uCLinux devices, including PDAs like a Palm IIIx, routers, DVD players, and even a FPGA."

An anonymous reader writes "A new project is developing a Linux port for Archos portable multimedia harddisk player/recorders. The LinAV project began in April, and has focused initially on the AV3xx-series devices, so far releasing a working kernel and a build environment for graphical applications based on the nano-X API. The LinAV project appears to be the first to actually achieve a Linux port to an Archos product. LinAV is based on uClinux, the version of Linux for devices based on processors without a memory management unit (MMU). However, at CEBIT last year, Archos was rumored to have a next-generation AV500 portable multimedia player that appeared to be running Linux."

william_lorenz writes "The Actiontec Dual 56k External Modem is an inexpensive device with a built-in 56k modem and two Ethernet ports that can be used as an Internet gateway of sorts. What's great about it is that it runs some form of uClinux, it's easily hackable, and Greg Boehnlein of the Linux Users Group of Cleveland and NOOSS fame recently contributed a detailed report on his findings! Pictures of the board are also available here, here, and here. Lots of specific details are included in Greg's article, and there's been some further discussions about this on the LUGC mailing lists."

lt writes "The ultra-small Contiki OS has now been ported to the x86. This should give those of you who have an old x86 PC that is too small to run even the smallest of Linux variants, a chance to browse the web, set up a web server, and doing other essential stuff. If you're curious to see how it looks, there is a live VNC demo running."

EmbeddedMan writes "For any potential XScale developers out there, this announcement of a completely free development kit for XScale processors is very interesting. Although I am not using XScale at the moment, I have used the distribution this release will be based on and it is extremely flexible and easy to use. It is good to see that this support will be freely available for everyone to use."

mike.851 asks: "I'm an engineer working in the embedded systems field. For the past few years, I've been using RS-232 to interconnect various modules into the embedded systems that I build. Lately, I've found that RS-232 simply isn't flexible enough for my growing needs. I need to switch to something else, and I don't think that USB is really an option for me. I've been looking into embedded ethernet as an alternative. I've found several great low-power platforms for hardware development including several of the uClinux kits as well as products from Rabbitsemiconductor. However, I'm having trouble finding ethernet hubs that meet my power requirements (my goal is 2W or better for the hub). So far I've found Ctrlink and W-linx, and I've considered replacing the power supplies in commodity hubs with switching regulators. Does anyone have experience with these products? Does anyone know of other low-power hubs? Thanks."

Derek Cunningham asks: "I've had a Palm Vx for a couple months now. All of the nerds I know continually ask me 'are you running Linux on that yet?' and all I can say is 'no'. I've continually read over the uCLinux page, as well as the OSK page... but cannot find details on exactly how to get Linux on my Palm. It seems that uCLinux has a downloadable version, but no docs, and OSK just doesn't have a whole lot of information other than some graphics and screenshots, and even those are almost a year old (same age as the slashdot story). The only thing they seem to document is getting their images to work with XCoPilot."

allanj writes "Have you seen the Clinux stuff running of the uCsimm modules? They are pretty little machines with a version of Linux that, with kernel and the entire filesystem needed to boot, comes in at only 900 Kb. The whole thing took 30 minutes from initial power-up to first boot. Some (quite basic) assembly of hardware required though. The best part? The entire computer fits in a 30 pin RAM socket, with 8 Megs RAM, 2 Megs Flash ROM and an ethernet controller chip. It's powered by a Motorola DragonBall, so it's not for too processor-intensive tasks, but most things run just fine. Oh, and it has a gcc cross-compiler pre-packaged to run off your host system, so development can start immediately."

gergoid writes "Check out this mp3 player hacked onto a small router. The router runs uClinux/ColdFire, a port of Micro-controller Linux on a ColdFire processor. Very neat toy!"

Thanks to Janice Wright for returning with a review of O'Reilly's PalmPilot: The Ultimate Guide (2nd Edition). It's the 2nd edition, written by David Pogue and Jeff Hawkins - click below to learn how to make the most of your PalmPilot. PalmPilot: The Ultimate Guide (2nd Edition) author David Pogue, Jeff Hawkins pages 597, publisher O'Reilly rating 9/10 reviewer Janice Wright ISBN 1565926005 summary An excellent book to teach you how to make the most of your Pilot Wow - I'm impressed. With my Pilot that is. I bought a Pilot 6 months ago so that I could carry my agenda (which I keep in MSOutlook on my desktop computer) to meetings with me. For six months I used it essentially as an electronic version of my filofax that I could also play backgammon or Sokoban on; and that was all. Then I read David Pogue's "well-written, nicely designed exploration of the Palm" (to quote Jeff Hawkins in the 'Forward').

Now I think of my pilot as a computer, one that will provide almost as much hackish enjoyment as my Linux box... as a matter of fact I'm now following the microLinux project with great interest and wondering how long it will be before I can upgrade to a Palm/Handspring device that will run Linux, a POP3 client and support a wireless modem. In the preface, Pogue says "Taking your Palm further: that's what this book is about." He delivers on that one-hundred percent.

David Pogue's "Palm Pilot - The Ultimate Guide" is absolutely excellent. It did take forever to read, though, because I kept stopping every few pages to optimize my Pilot with the tricks I had just learned, or to turn an easter egg on (yes, the book tells you where all(?) of the easter eggs are). The book has everything from office productivity tips for suits (when transferring lots of data from the expense program to Excel, you can end up with multiple spreadsheets which you have to total seperately, p. 228) to great hackish tidbits for hardcore geeks (like how to turn on verbose hot-sync logging, p.142).

Like many people I completely ignored the manual that came in the box with my Pilot, so some of the stuff Pogue covers, like ferinstance the Ronomatic stroke, is probably actually in the manual (l've only ever looked at it once - to try to solve an installation failure problem. The manual was unhelpful, and I found the information I needed to solve the problem in the FAQs at PalmCentral.com. The problem and solution are on page 181.

What's good and/or my favorite bits:

• the musical notation for the palm chimes on p.137
• the official solution vs. the better solution to upgrading
• the way it explained why a backgammon game I had installed and then deleted kept 'coming back' every time I HotSynched
• even though I will probably never surf the web on my pilot the explanation of how ProxiWeb works is mega cool.

What's bad:

• didn't really need four pages on the various classic games that you can download from 3Com
• doesn't mention quickwrite in the 'graffiti alternatives' section

Table of Contents
I. This Is Your PalmPilot Speaking

The 3x5 inch powerhouse

Setup and guided tour

Typing without a keypad

The four primary programs

Other built-in programs
II. Palm Meets PC

HotSync, step-by-step

Installing new palm programs

Palm desktop (win&mac)
III. The Undiscovered PalmPilot

The electronic book

The secret multimedia world

Database and number crunching
IV. The PalmPilot Online

Email anywhere

The web in your Palm

Paging, faxing, printing, and beaming

Palm VII: wireless email, wireless web
V. Troubleshooting and Upgrading

Troubleshooting

The Palm family, model by model
VI. Appendixes

CD-ROM
A few notes about the CD-ROM that comes with the book: Though it was obviously outdated by the time the book went to press, it will save you hours of hunting for the best software and, depending on the speed of your modem of course, a significant amount of download time (for those of us unfortunate enough to live in corners of the world with metered phone calls, you will probably save yourself the price of the book within weeks). I've been working my way through a variety of 'world' clocks (ones that show multiple timezones), trying to find one that I like; because there are half-a-dozen on the CD, this is pretty painless. The Catalog software resident on the CD makes it easy to find what you are looking for, and in many instances, shows you what the program is going to look like. I've 'trialed' a lot more software on my PalmPilot than I would have ever been bothered to download.

And yes - I did write this review on my Pilot, mostly on trains & on the London Underground. Speaking of which: as soon as I get the time, I'm gonna figure out how to make ImageViewer docs, so that I can update the London Underground map for the Pilot - the one that's currently available still has Mornington Crescent crossed out!

Purchase this book at Amazon.

Janet, please send your name, address, t-shirt size, and this article's URL to roblimo so we can send you your t-shirt. (Everyone who writes a Slashdot review or feature now gets a free t-shirt!)

An anonymous reader wrote in to point out that the uclinux project has an interesting little device on its website. Its the size of simm and runs Linux. Costs about $175 and has chips for ether, an LCD panel, 2mb of flash RAM and 8 megs of DRAM. Very cute. Very little. Very cool.

An anonymous reader wrote in to point out that the uclinux project has an interesting little device on its website. Its the size of simm and runs Linux. Costs about $175 and has chips for ether, an LCD panel, 2mb of flash RAM and 8 megs of DRAM. Very cute. Very little. Very cool.

The uClinux guys have announced that they are finished testing the uCsimm and are now taking pre-orders. For US$175, you get a SIMM-sized unit with a 16MHz Dragonball processor (the very one used in the Palm Pilots), 2MB of Flash, 8MB of RAM, and integrated 10baseT. Since it can apparently drive a QVGA LCD, I guess it might be good for my fridge? :) uClinux is Linux without an MMU and more info can be found at the uClinux.org site.