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Discussion Groups | Comp.Arch.Embedded | Microprocessors for Java or MPEG4

There are 5 messages in this thread.

You are currently looking at messages 0 to 5.

Microprocessors for Java or MPEG4 - Potxoka - 2008-10-22 06:14:00

Hello

I'm looking for two microprocessors, one that optimized for Java
applications and another that has a compressor MPEG4. I need to do two
designs, one with uClinux running an application in Java (requires a
lot of time porting to C), another who has uClinux and it has to
compress into MPEG-4 video input. For MPEG4 I found the series of
Freescale i.MX, looking at Datasheet but I find nothing of how to use
this function, so we know whether these optimizations makes them
transparent manner. Anybody can help me?. Thank you very much.

Greetings,
Antony



Re: Microprocessors for Java or MPEG4 - John B - 2008-10-22 13:13:00

On 22/10/2008 Potxoka wrote:

> Hello
> 
> I'm looking for two microprocessors, one that optimized for Java
> applications and another that has a compressor MPEG4. I need to do two
> designs, one with uClinux running an application in Java (requires a
> lot of time porting to C), another who has uClinux and it has to
> compress into MPEG-4 video input. For MPEG4 I found the series of
> Freescale i.MX, looking at Datasheet but I find nothing of how to use
> this function, so we know whether these optimizations makes them
> transparent manner. Anybody can help me?. Thank you very much.
> 
> Greetings,
> Antony

This one claims to be able to run Java, but I've never used it.

http://www.developer.com/java/other/article.php/610041



-- 
John B

Re: Microprocessors for Java or MPEG4 - Ulf Samuelsson - 2008-10-22 17:02:00

"Potxoka" <p...@gmail.com> skrev i meddelandet 
news:9...@m36g2000hse.googlegroups.com...
> Hello
>
> I'm looking for two microprocessors, one that optimized for Java
> applications and another that has a compressor MPEG4. I need to do two
> designs, one with uClinux running an application in Java (requires a
> lot of time porting to C), another who has uClinux and it has to
> compress into MPEG-4 video input. For MPEG4 I found the series of
> Freescale i.MX, looking at Datasheet but I find nothing of how to use
> this function, so we know whether these optimizations makes them
> transparent manner. Anybody can help me?. Thank you very much.
>
> Greetings,
> Antony

Are you sure that the i.MX does COMPRESSION.
I would assume it does DE-COMPRESSION.


-- 
Best Regards,
Ulf Samuelsson
u...@a-t-m-e-l.com
This message is intended to be my own personal view and it
may or may not be shared by my employer Atmel Nordic AB



Re: Microprocessors for Java or MPEG4 - 2008-10-23 11:25:00

On Oct 22, 6:14=A0am, Potxoka <potx...@gmail.com> wrote:
> For MPEG4 I found the series of
> Freescale i.MX, looking at Datasheet but I find nothing of how to use
> this function, so we know whether these optimizations makes them
> transparent manner.

I've done H.264 compression with the iMX27.

In order to implement this, you'll need to get the BSP from Freescale.
It has sample driver code to interface with the compression engine.
Also, this is done in firmware in an engine within the iMX27 and needs
to be downloaded each boot.  That's a binary blob you'll need from
Freescale's BSP.

    Steve

Re: Microprocessors for Java or MPEG4 - Frank Buss - 2008-10-23 18:31:00

Potxoka wrote:

> I'm looking for two microprocessors, one that optimized for Java
> applications 

Maybe some ARM CPU with Jazelle might be a good idea:

http://www.arm.com/products/multimedia/java/jazelle_software.html

-- 
Frank Buss, f...@frank-buss.de
http://www.frank-buss.de, http://www.it4-systems.de