Some general questions on ADAU1452 from a newbie (to this chip)

ScottIncz Question

Mar 9, 2014 00:00

Hi

I seem to recall someone saying that you are now able to write your own modules for sigma DSPs and use sigma studio to join up your own modules with the standard ones. Is this the case?

Is it possible to see the DSP code of the sigma studio modules so you can see how they work, to see if they will be sufficient for your application (compared to assembler code you have for other traditional DSPs)

Is there documentation for the DSP assembler and can you see what the modules create when you compile them? For example, you have an audio clipper module. Is this oversampled? Anti-aliased?

Is it easy to create multi-rate blocks that may run at a different sample rate to the system rate. Say run internally at 192khz but with 48khz IO? Is this possible with sigma?

BTW, are there a list of Sigma experts who do contract work? (as in start on one or two projects immediately)

Audio Signal Processors

adau1452

SigmaDSP Audio Processors

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rago Reply

Mar 9, 2014 00:00

Hi Scott:

Base 10 Labs can provide assembly code / library support for your projects in all SigmaDSP processors.

Please feel free to contact me directly.

Ricardo

www.base10labs.com

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ajay_basarur Reply

Mar 11, 2014 00:00

Hi Scott,

We can do the work on sigmaDSP processors. Pls. mail details to ajay.basarur@pathpartnertech.com

Regards

~Ajay

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Yagami Reply

Mar 15, 2014 00:00

Hi ScottIncz,

I can answer one of your questions. It's not possible to do multi-rate processing in current-generation SigmaDSP processors, at least not that I know of. You need to select one sample rate for the DSP core and it's not possible to have algorithms run at different rates from that.

This might not be all that useful, but there's some reference material for setting the sample rate of your system here: FAQ: How do I change the sample rate of my SigmaStudio system?

Some SigmaDSPs (like the ADAU144x family and ADAU1452) contain sample rate converters. This allows you to run the serial ports at rates other than the DSP core, but it still doesn't allow for multi-rate processing.

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EZAdministrator Reply

Aug 2, 2018 00:00

This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

Thank you,
EZ Admin

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