cheap RTEMS/PowerPC platform [was: Re: Open Desktop Workstation]
kgardas at objectsecurity.com
Wed Aug 24 16:42:12 UTC 2005
On Wed, 24 Aug 2005, Joel Sherrill <joel at OARcorp.com> wrote:
>>> Hmm i have no idea what the mentioned hardware cost, so i can't answer
>>> that question. But apple's mac mini is about 500USD which isn't that
>>> expensive, when you want a general PowerPC.
>> The problem is that IIRC it does not even provide serial port which is
>> needed for serial console. Pegasos seems to provide one RS-232.
>> BTW: Anobody here get RTEMS working on MOAB or CerfCube?
> The Avnet evaluation board for the Coldfire that had a BSP submitted
> recently is inexpensive. Do they have any PowerPC boards like that?
> The PegasusPPC mentioned CHRP. The EP1A and MVME2100 appear to be
> CHRP. Would one of the existing BSPs come close to working?
True, let's list here the market choices for the reference:
1) Pegasos Open Desktop Workstation: $799 (Freescale 1GHz G4/512MB RAM/80GB disc)
2) Avnet AMCC PowerPC 440GX Eval. Kit: $749 (AMCC 440GX 533MHz/256MB RAM/32MB FLASH)
3) TAMS MOAB 3011 (board/chasis/doc + CD): $650 (AMCC 405GPr 400MHz/64MB RAM/128MB FLASH)
4) Avnet Freescale MPC885 Evaluation Kit: $499 (Freescale MPC885 133MHz/64MB RAM/16MB FLASH)
5) Intrinsyc CerfCube 405EP for Linux: $399 (IBM 405EP/32MB RAM/32MB FLASH)
6) TAMS MOAB 3011 (eval. board only): $399 (AMCC 405GPr 400MHz/64MB RAM/128MB FLASH)
7) Synology NAS DS-101g+ : $300 (Freescale MPC 8241 266MHz /64MB RAM/16MB FLASH)
8) Buffalo Kuro-box HG: somewhere between (7) and (9) (Freescale MPC 8241 266MHz /128MB RAM/4MB FLASH)
9) Buffalo Kuro-box: $160 (Freescale MPC 8241 200MHz /64MB RAM/4MB FLASH)
where (2)-(6) seems to be "true" embedded solutions with proper boot
monitors (RedBoot, U-Boot, PPCBoot, etc.) and serial consoles, (1) is more
like general system ala PowerMac and (7)-(9) are cheap NAS solutions
sometimes hackable to contain serial console etc. (like now popular
Linksys NSLU2 for XScale platform).
As my target hobby price (RTEMS/Linux/real-time is just hobby of mine) is
around $200, I will probably end with one of NAS solutions or an old
second-hand PowerMac. Anyway, my current strategy is wait and see, since I
expect PowerPC prices to fall a little bit after recent IBM's move to more
"open" PowerPC licenses and also after enter of new game consoles into the
market (XBox/PS3), not talking about usual price-fall of new PowerPC-based
NAS like DS-101g+.
BTW: RTEMS does not run on any of the choices above, although it might be
probably easily ported to some of them (PPC405 etc.)
Karel Gardas kgardas at objectsecurity.com
ObjectSecurity Ltd. http://www.objectsecurity.com
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