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Image - Video Processing Platform

Started by Jaime Andres Aranguren Cardona July 2, 2001

Hi everybody:

I am getting involved on a Video - Image Processing project at the University, and we have at our disposal the following DSP Kits from Analog Devices.

1 ADSP-21xx EzLite
1 ADDS-2189M EzLite
1 ADDS-2106x EzLite
2 ADDS-21160M EzLite
1 ADDS-21165L EzLab

And also the ADDS-218x-ICE 2.5V and the ADDS-MTN-ICE, plus all the updated and licensed software for development.

I would like somebody with expertise on the topic give some guidelines on how to chose the right processor with the right additional horsepower we would need for such a project. We think the most important part will be concerning storage and processing speed.

Thanks a lot!



Jaime Andr Aranguren Cardona
j...@ieee.org
jaime.arangure...@computer.org





Hi Jaime

The ADSP-21xxx series (e.g. 21060, 21065, 21160) are 32-bit floating +
fixed point processors, whereas the 21xx series are fixed point only.
This has implications on how easy it is to write efficient code for the
processor. For e.g., using a fixed point processor, one would have to be
careful not to saturate registers when performing multiplications (e.g.
filtering applications). The general rule seems to be: fixed point
processors are cheaper, and less power hungry, so they should be
considered if you plan on mass-production / low power consumption.
Otherwise, floating point processors are easier to use (less development
time). A top-of-the range fixed point processor can run at 600MHz, vs. a
top-of-the-range floating point processor at 80-100MHz, but it may need
to perform extra operations to prevent registers from saturating when,
for example, multiplying two large numbers, so MHz is not the only
concern.

The ADSP-21160 is the most powerful floating point processor of those
that you mentioned, with 4Mbits of internal memory - >= all the others
you mentioned.

Cheers,
Clifford

Jaime Andres Aranguren Cardona wrote:

>
>
> Hi everybody:
>
> I am getting involved on a Video - Image Processing project at the
> University, and we have at our disposal the following DSP Kits from
> Analog Devices.
>
> 1 ADSP-21xx EzLite
> 1 ADDS-2189M EzLite
> 1 ADDS-2106x EzLite
> 2 ADDS-21160M EzLite
> 1 ADDS-21165L EzLab
>
> And also the ADDS-218x-ICE 2.5V and the ADDS-MTN-ICE, plus all the
> updated and licensed software for development.
>
> I would like somebody with expertise on the topic give some guidelines
> on how to chose the right processor with the right additional
> horsepower we would need for such a project. We think the most
> important part will be concerning storage and processing speed.
>
> Thanks a lot! > Jaime Andr Aranguren Cardona >
>
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VCard
Clifford van Dyk <>

Design Engineer
Peralex Electronic Development

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