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SigmaStudio 4.6 - ADAU1787 - Export without download, other issues

Category: Software
Product Number: ADAU1787
Software Version: SigmaStudio 4.6

ISSUE 1: I generate my register settings blindly to run on other target hardware without the need to download.

If I want to Export meaning the Action -> Export option is not greyed out I have to first click Link Compile Download.

ISSUE 2: When I choose that I get the following dialog.

ISSUE 3Another problem is when I do this, my DAC volume settings are reset.

I proceed to correct them back to 0.

At this point I am able to Export.

ISSUE 4 but upon export, the SigmaDSP on bit gets flips high when I am not using the SigmaDSP.

I correct this manually in the TxBuffer_IC_1_SIGMA.dat file since it is the last command sequence.

ISSUE 5and I get this dialog.

I can work around all of these issues, but these issues affect my ability to automate 



  • Hello Dan,

    Try Link/Compile/Connect. This way SigmaStudio will not try to download anything to the DSP. It will just compile the project and so then it has the data to export. The icon will no longer be grey. 

    Dave T

  • Dave,

    Thanks, that seems to fix issues 1 and 3 (DAC level reset). Also I do not need to explicitly export since I made that automatic in settings.

    I still get the two dialogs issues 2 and 5 which I can live with.

    Issue 5 also still occurs. Can you help me with that one?

    Thanks for your prompt response.


  • Hello Dan,

    Issue 5 is often because of a corrupted file. Can you send over your project?

    Dave T

  • Hello Dan,

    Issue 2 and Issue 5 is cause by an absolutely blank empty file trying to be compiled. There is nothing there so it says parameter "no_name" is not found. 

    Your project consists of just dropping the ADAU1787 object into the Hardware Config and that is all. You MUST bring in some sort of communications interface. Usually the USBi and you MUST at least put something in the schematic, at least one thing. Pass through input to output, or an Oscillator, a DC cell, something. It is just blank.

    This is what I saw in your project:

    This was the Config tab with the Schematic tab just blank. 

    Drag in the USBi so you can communicate with the DSP.

    Then switch over to the schematic tab and drag in something. In this example I brought in the ADC inputs and connected it to the outputs of the fast core. 

    There are still registers that will need to be set to make this actually pass audio.

    What is your application and what are you intending to use in the DSP?

    Dave T 


  • Dave.

    My design has two devices on the same TDM bus and I2C bus from an NXP MCU.

    I am just creating register configuration for now to duplicate my inline code so developers who want to add in FastDSP and SigmaDSP have a skeleton program. 

    I am not using the eval board. Developers may.

    I do not want to add anything that generates extraneous SigmaDSP code.

    I take it this is an odd use case.



  • Hello Dan,

    Yes, this is an odd use case. 

    How can you test your configuration without an eval board to test it? 

    This part has so many routing options and other system features that it is difficult to come up with some standard configuration. I have example programs for most of our SigmaDSP products but this one I do not. 

    You will need to at least make one or two simple audio pass-thru programs as a starting point. I am not sure what the signal flow should be. Like I said, it is so flexible. 

    Dave T

  • We decided not to out debug capability into the hardware. We are underutilizing the part for now, but eventually we will need to use the SigmaDSP and FastDSP, then using the eval boards will matter and having "normal" projects. No worries, at least we can explain it.

    The last part of why the SigmaDSP ena bit gets set to one on compile is still useful to resolve.