[tremor] This is great!

[timmy brolin]

The cirrus logic at 74MHz is obviously powerful enough.
If I find myself a suitable ARM7 and start working with that, I can allways lower the clock frequency later. (the reverse is a little harder)
Of course, it would be good to know the SRAM requirements... And that might also change a bit?
I have two differewnt ARM7 CPU's here, but I don't think any of them will do the job.. Max clock frequency for both is 50-60MHz, and internal SRAM is only 4kB and 8kB. External RAM adds alot of extra overhead.

T

-----Original Message-----
From: Reza Naima <reza at reza.net>
To: tremor at xiph.org
Date: Thu, 05 Sep 2002 17:54:37 -0700
Subject: Re: [tremor] This is great!

Alas, it looks like even with the intergerized ogg decoder, most small 
systems are still lacking sufficient power.  At least that's the case 
with the Rio Receiever (armv4l) box.  And there's a big debate going on 
regarding the library architecture, so I'd wait awhile for the dust to 
settle.

Reza

timmy brolin wrote:
> Finally an integerized ogg decoder!
> I'am thinking a portable ogg-decoder the size of a matchbox, similar to the smallest portable mp3 players.
> I was looking for a new hardware project, this looks like it.
> 
> Now, an ARM7tdmi should be suitable for the task. What clock frequency and what amount of fast SRAM is required on a ARM7tdmi to decode in realtime?
> I assume the inner loops should be compiled to 32bit ARM mode and kept in fast 32bit internal SRAM, and the rest of the code be compiled to 16bit thumb mode (if 16bit flash) and remain in flash memory in order to save internal SRAM.
> 
> --
> Timmy Brolin
> 
> 
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