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.dsproj file for the delivered profile on DAC+ DSP

Ivan Pesic

December 07, 2024 09:30

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Hi, I have just got my board, it is a 1.3 revision with ADAU1452W DSP. I installed the DSPToolkit on the RPi without problems, got the checksum of the program, searched the repository and found out that the profile on the board is 4way-default.xml. I put that xml in /var/lib/hifiberry/dspprogram.xml and I am able to use DSPtoolkit without problems. Can you please provide the SigmaStudio .dspproj file for the dacdsp-15.xml profile, as I would like to use it as a starting point of my setup? Is there a problem that the IC in profile is given as ADAU1451? The difference with 1452 is only the amount of available memory...

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2 comments

• 0
  
  HiFiBerry team December 09, 2024 07:53

  The project file is here:
  
  https://github.com/hifiberry/dspprofiles/tree/master/dac%2Bdsp
  
  It doesn't matter if your configrue it as 1451 or 1452 as the difference is only the amount of memory and our profiles don't need to full memory of the 1452.

• 0
  
  Ivan Pesic December 10, 2024 18:48

  Ah, thanks, I have missed that repository!

  I have played yesterday with it and found something strange. It seems that something is wrong with hardware mute.  SPDIF-TX-On Register write block writes to register F000, but that's the PLL feedback divider register.

  SPDIF Transmitter Enable register is F690. I have changed the value, and now SPDIF mutes. But I was not sure about the logic... Common sense tells me that when Sound on input is 0, SPDIF TX should be disabled. Also when you press Mute switch (turn it to 1). But that doesn't happen. Maybe I'm getting something wrong...

  But I have changed the block so that it behaves like this. SPDIF-TX-Enable serves to override mute for the SPDIF output. When it is 0 SPDIF TX will mute, when it is 1, it will always be active.

  

   

  Edited by Ivan Pesic December 10, 2024 18:50