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Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

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Old 06-02-2008, 04:26 AM   #1
marceliszpak
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single board computer


im looking for sbc solution (hardware+software) which will allow to build a mp3 player which is connected to my home server via wlan.

so i need audio out, wlan and sutable procesor power.
i was browsing net but im lost is space
any suggestions , which platform i should check

thx
 
Old 06-02-2008, 04:46 AM   #2
pinniped
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Hmm... there are any number, but none are cheap!
For example, have a look at 'Advantech' (Taiwan) and 'WinSystems' (US, www.winsystems.com).
I use a lot of WinSystems gear; the gear is great and they're a very pleasant company to deal with; they look after their customers. (I'd better not say too much about Advantech, I might be asked to edit my post.)

You probably want an x86 based one to make life easier.

Now the bad news: those things cost between USD300 and USD1k, plus you have to add your own power supply ($80 for a really good one from 'MiniBox' - the 'Pico' PSUs are awesome), case, Wireless card, etc etc etc.

Now if you can get one of these cheaply it would probably be good enough for you:
http://www.linuxdevices.com/news/NS6372429785.html

Also check out 'Mini ITX' and 'Nano ITX' boards and cases; if I remember correctly, 'MiniBox' have some pretty good items: http://www.mini-box.com
Like I said, their power supplies are among the best. MiniBox also usually offer at least one type of case for whatever MoBo you find on their list, and if you're very lazy you can throw some money at them and they'll assemble and test it before posting it to you.

My guess is for a case, memory, at least 80GB HD, wireless, MoBo, power supply, you're looking at about USD600. It's certainly no toy though - it's a very capable machine - you'll have something of a 'Super iPod' - really, these machines have far more computing capacity than an iPod, so feel free to go for the slowest lowest power and cheapest.
 
Old 06-02-2008, 07:03 AM   #3
marceliszpak
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thx for answer
and what do u think about this one?
http://www.compulab.co.il/x270cm/htm...-datasheet.htm
it seems quite quipped and very cheap

so where is the catch?
 
Old 06-03-2008, 04:55 AM   #4
pinniped
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Ooo - very nice. Can an end user really get it for under $50?
The only catch I guess is:
power supply
packaging (see if they offer cases with mounting space for a laptop HD)
options (you obviously want the wireless)
HD connector may be specialized - see if they can provide the wiring kit needed to get from that board to your standard 2.5" laptop HD. Also see if there is an adapter to a standard IDE CDROM (for initial install).
XScale is very similar to ARM - the x86 software will not run. You should be able to get it to boot up to Debian GNU/Linux on ARM.

Still, it would be far cheaper than what I've suggested. If you're good at setting stuff up on embedded systems, this'll only take you a day. Otherwise ... mmm... it can be a bit difficult. You may very well have to load all software onto the HD, then plug the HD into that computer, then boot. On the bright side, once it's booted you can run a service like ssh and tinker with the box as you please. On the down side, you may have to set up an ARM cross-compiler on your x86 box to build software for the thing. Either way, if you enjot playing and learning, that's a great toy to start with.

The ARM is a dual-endian machine which defaults to big endian. I think with the Debian ARM distribution the bootloader is big endian, loads the kernel, switches to little endian then runs the kernel. It can all get pretty tricky. And no, you can't just build a big-endian ARM kernel, not without porting the kernel's ARM port from little-endian to big-endian. I'm also not sure if gcc supports both endians.
 
Old 04-23-2010, 04:10 AM   #5
wujianwen
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embedded board

Hiteg announced a Windows CE hardware/software development kit for Samsung's ARM9-based S3C2440 microprocessor. The 100mm-square Mini2440 board features the workhorse S3C2440 processor clocked to 533MHz, and targets embedded development training applications, industrial control equipment, and consumer electronics devices...

www.developmentboard.net

such as PDAs and PNDs (personal navigation devices).

(Click for larger view of the Mini2440)

Chinese embedded ARM vendor Hiteg offers a variety of development boards and processor modules based on the Samsung S3C2440 and lower-power S3C2410 processors. The boards are typically available with software development kits (SDKs) for Windows CE 5.0 and Linux 2.6 (more details on the SDKs below).

The Mini2440 appears to be Hiteg's smallest S3C2440 development kit to date. Measuring 3.9 by 3.9 inches (100 x 100mm), the AT2440 is a four-layer board that clocks the Samsung S3C2440's ARM920T RISC core at 400MHz (dominant frequency) and 533MHz (peak frequency). Touted as the "world's fastest mobile CPU" when launched in 2003, the S3C2440 primarily targets handheld devices such as smartphones and PDAs. The SoC integrates 16KB each of instruction and data cache, 4KB RAM, a NAND flash boot loader, power management functions, an interrupt controller, and an external memory controller (see block diagram).


Mini2440 with LCD
(Click to enlarge)
www.developmentboard.net
awen@developmentboard.net
 
  


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