Hi!
I want to do some adaptive signal processing on the DSP from DAC+ DSP board. I've already connected the sigmatcpserver to the SigmaStudio.
I couldn't find any datasheets that would clarify how to properly use different inputs and outputs on the board. I need to send output to the analog output and read data from 2 I2S channels. Can you direct me with information about which ADAU1451 output ports and input ports should I use?
Thanks!
Hi,
this might help:
https://www.hifiberry.com/build/documentation/datasheet-dac-dsp/
Analogue output is connected to output channel 0
Best regards,
Daniel
So, lets say I want to connect simple white noise source to the analog output. Should I do it this way, or maybe through the ASRC block?
Thanks!
This should work. However, I would not recommend to start from an empty project as you also have to set all registers correctly. I strongly recommend to start from one of our projects here:
https://github.com/hifiberry/hifiberry-dsp/tree/master/sample_files/dspproj
Best regards,
Daniel
Daniel,
Thank you for your answers. I finally figured out both the analog output and I2S input, but I found a mistake in the hifiberry datasheet site for DAC+ DSP.
In this section:
Pins LRCLK IN2, BCLK IN2 and DATA IN2 are actually connected to the SDATA_IN1 port so I think they should be marked with "IN1" endings. I don't really have time to check the other ports but the issue may be the same there.
Best regards,
Piotr
Hi Daniel,
The "dacdsp-default" profile is only available as an .xml file, not as a .dspproj. Could you add the dspproj file?
Cheers
Hi,
there is no separate dspproj project for this. Multiple default profiles are derived from the same dspproj file just by applying different settings (one thing that's different between DAC+ DSP and Beocreate is the MUTE control that is reversed on the DAC+ DSP).
Therefore, the best start for an individual project is this one:
https://github.com/hifiberry/hifiberry-dsp/blob/master/sample_files/dspproj/4way-iir-delay-inputswitcher.dspproj
Best regards,
Daniel
@Piotr: Looks like our fault. It's always the problem if you start counting at 1 or 0 :(
Best regards,
Daniel