Return to the archive index

Re: [Wear-Hard] Re: Interesting PDA

From: "Brian Empey, P.Eng." <>
Date: Tue, 01 Apr 2003 10:58:55 -0800

Doug,

I can't give a performance comparison, but I do have a question: how do
you upgrade the Ajile CPU to a newer version of Java in 2 years?
BTW: Techsol's CPU modules will have Sun's JAVA logo on them.
This is "the real thing" in terms of Java.

There's really no use comparing these.
The Ajile CPU is a neat little device that has minimal I/O and runs
Java.
Our CPUs run ARM-7 or ARM-9 CPUs up to 400 MHz, and sport:
- Standard Linux (2.4.20 currently, with all source)
- Boot-loader/monitor to upgrade devices or re-load Linux if you
accidentally blow it away
- Color TFT LCD controllers and touch-screen controllers
- Stereo audio in and out (and MP3 player in SW)
- DiskOnChip storage (up to 64 megs)
- low-power SDRAM (up to 128 megs)
- Optional 10 or 10/100 BaseT Ethernet
- USB host and slave controllers
- UARTs, IrDA, I2C, etc.
- key-board scan (up to 8x11 matrix)
- 32-bit expansion bus
- 64-meg expansion address space
- support for Apache, WiFi, GPS, USB storage and IO devices....
- etc.

Its sort of like comparing a Palm m105 PDA to a Pentium-3 lap-top ...
its not a very fair comparison!  One cannot be substituted for the
other.

Brian

PS: We're waiting for Intel to work the bugs out of their x-scale CPUs
before we support them.  Meanwhile the ARM-9 CPUs provide more features
at a better value.

~~~~~~~~~~~~~~~~~~~~~~~~
  Brian Empey, P. Eng.
      President

Technical Solutions Inc.
     www.techsol.ca
~~~~~~~~~~~~~~~~~~~~~~~~

> Jeremy Arntz wrote:
> 
> From parallax Javelin site:
> 
> "The Javelin Stamp is a powerful module programmed in a
> hardware-oriented subset of the Sun Microsystems Java language.
> In addition to providing lots of RAM and EEPROM space and a
> well-known structured, object oriented programming language.
> The Javelin's firmware can also run multiple background tasks!"
> 
> Mot positive that means multithreading, but sounds like it.
> 
> what do I know I program in php. lol. just a web developer.
> 
> 
> 
> -----Original Message-----
> From: Doug Sutherland [mailto:]
> Sent: Friday, March 28, 2003 4:48 PM
> To: 
> Subject: Re: [Wear-Hard] Re: Interesting PDA
> 
> Brian,
> 
> Do you have any idea how performance of that spiffy JVM
> (marketing folks should be shot for calling it CVM) when
> compared to the aJile processors (the ones that implement
> the VM in silicon and execute bytecode natively)? Do you
> have any data on this comparison?
> 
> http://www.ajile.com/
> 
> I have noticed some new Java in hardware stuff here too:
> http://www.parallax.com/javelin/index.asp
> http://jstamp.systronix.com/
> http://jstik.systronix.com/
> 
> I don't think the Parallax Javelin is in the same class
> because unless something has changed it does not do any
> multithreading. The little "stamp" style java thingies
> are cute but a bit expensive for their processing power.
> I think Java on X-Scale would be much nicer ...
> 
>    -- Doug
>

--
Subscription/unsubscription/info requests: send e-mail with subject of
"subscribe", "unsubscribe", or "info" to 
Wear-Hard Mailing List Archive (searchable): http://wearables.blu.org
Please, *PLEASE* don't subscribe through a forward/expander/false domain

+Previous Message in Thread | Next Message in Thread

From Wear-Hard Mailing list Archive (WH)
Maintained by R. Paul McCarty

Archive created with babymail