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Requesting guidance to see output from ADAU1787

Category: Software
Product Number: ADAU1787
Software Version: Sigma Studio 4.7

Hi,

I'm currently working on ADAU1787 development board, being new to the system i feel hard to make it work and see simple beep outputs. 
I request few examples like noise generation, filter so that I can have a better picture on how to obtain and check the output.
Also is there anything in particular sections that needs to be set like PWR_EN and all in the sigma studio before programming the dev board.

Regards,
Sai

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Top Replies

  • Hi   ,

    I've created a simple ADAU1787 example project that includes some internally generated sources that are routed to the DAC differential output. Here is the schematic I've created below…

  • ADI North America will be on winter shutdown starting December 25, 2023; perhaps another community member can assist you until our return on January 8, 2024.
  • Sairpatheep,

    We will provide an example project as soon as possible, this will be easily achievable generating singals in the SigmaDSP to the headphone output.  SigmaStudio will handle the sequencing of the writes automatically if using the Default Boot Sequence.  The example project will be configured accordingly.  

  • Hi   ,

    I've created a simple ADAU1787 example project that includes some internally generated sources that are routed to the DAC differential output. Here is the schematic I've created below:

    There is a 3-to-1 multiplexer block that accepts inputs and routes them to the DAC output based on which option is selected. The first source is a 1kHz Beep tone. You can manually press the "Beep" button on this block to see the desired beep source routed to the output when selected.

    Next, there is a 1kHz Sine tone that has some added White Noise that are combined using the Signal Adder block. This can serve as a "dirty" signal or mixed signal that has some unwanted noise. Selecting the middle option of the MUX block will route this to the DAC output. As a precaution, be aware of volume levels as to not damage equipment or harm your hearing.  

    The third option of the MUX block is receiving a "clean" signal, or filtered signal that has routed the noisy 1kHz Sine tone into a Bandpass Filter. This BPF block attenuates the uniformly distributed noise above and below the set 1kHz mark in order to recover the original 1kHz tone of interest. 

    This is just a couple examples of how you could generate some quick projects to play around with the internally generated source blocks and route them to the DAC output of the ADAU1787. I'll attach the SigmaStudio project file I used to create this project below. 

    ADAU1787_Beep_Source_1kHz_BPF_Example.dspproj

    Please let us know if you have any troubles with the project or have any more questions we can help answer, thanks!

    Cheers,

    TBM