[PD-dev] Porting PD on a DSP processor

[Sukandar Kartadinata]

The port was actually to a TriMedia TM1300 which isn't really a DSP  
nor FPGA, but a VLIW-CPU. The FPGA is the core of my newer product,  
the gluion. The gluiph only had a small CPLD for various signal  
routings, although some of the gluion's concepts were already  
implemented there.

Regarding the port: The TriMedia actually has a very good C/C++  
compiler, so porting to it can't be really compared to the work  
involved with DSP programming.

As Hans-Christian said, you might want to look at PDa which is said  
to run on the Blackfin DSP by Analog Devices as it has a Linux tool  
chain. I'd prefer a floating point DSP though, but last time I looked  
there was none which would support µLinux.

One main question is: do you want to do this in assembler (or hand- 
optimized C) or take some higher level approach. The former is a lot  
of work, the latter will likely be rather slow.
You might wanna have a look at Embedded Chuck for reference:
http://www.cs.princeton.edu/~gewang/ee464/product.html
The gluiph, with only a bit of optimizing, was twice as fast as a  
PowerPC G3 (per MHz). But at 128MHz that doesn't mean much....

Then again, you can get Pentium/Core modules as small as 10x10cm...

But let us know where you're heading with this.
Maybe you'll find a better angle to approach this than I did 5 years  
ago with the gluiph, which was a lot of work but didn't really pay off.

BTW, I'm rearranging my website, so for the meantime the cited paper  
can be found at:
http://www.glui.de/old/prod/gluiph/NIME03_Kartadinata.pdf

cheers,
Sukandar





On 17.02.2007, at 16:23, David Merrill wrote:

> The closest thing that I'm aware of is that PD was ported to an  
> FPGA by Sukandar Kartadinata, as described in this paper:
> http://www.glui.de/prod/gluiph/NIME03_Kartadinata.pdf
> -David M.
>
> Pierpaolo Marcon wrote:
>> Hi!
>> I've recently began to work on PD's source code in order to port  
>> PD on
>> a DSP processor, but I don't know if anybody did it before.
>> If somebody has informations about it, please tell me!
>> Thx a lot!
>> Pierpaolo
>> -- 
>> www.pierpaolomarcon.tk
>>
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>
> -- 
> MIT Media Lab
> dmerrill at media.mit.edu
>
>
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