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Old 14th February 2018, 07:17 AM   #161
Dimdim is offline Dimdim  Greece
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GB for ArDAM Lite bare PCBs
OK, I'll need to properly debug this code when I get my Soekris back.. coding blind is not a good idea..

Regarding signal type display, are you absolutely sure that your source is indeed outputting DSD? A good test would be to play some 44.1K material, then play some DSD and see if the screen displays a different sample rate & signal type.

Not showing the resolution while shifting to another piece of music with the same resolution is normal - the code depends on the DAM reporting a new sample rate so if that does not happen (like when the dam does not lose lock due to an interruption of the i2s stream or a change in the sampling rate) the code has no way of knowing that something has happened.

The start-up volume thing is easy to fix. Just insert this:

Code:
Serial.print("V-");       // output the new volume level to the DAC's serial port
Serial.println(Vol);      // output the new volume level to the DAC's serial port
after the poweron = true; statement at the setup().
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Old 14th February 2018, 07:27 AM   #162
henrylarsen is offline henrylarsen  Denmark
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I think you are doing well coding blindly :-)
Thank you, I will implement that for volume.

Regarding signal type display, are you absolutely sure that your source is indeed outputting DSD? A good test would be to play some 44.1K material, then play some DSD and see if the screen displays a different sample rate & signal type.

Yes, that is what I did. When it shifts to other resolutions, it shows the sample rate ( e.g. from 44 to 88 or 96), but not for DSD material. And I had an easy way to test what I got, since using Roon I could see what was sent ( 384). Furthermore, when I shifted to another source it temporarily showed the high resolution. But that is definitely a minor detail :-)
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Old 14th February 2018, 03:37 PM   #163
henrylarsen is offline henrylarsen  Denmark
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I corrected to this - otherwise I got an error in compiling
Serial.print("Vol"); // output the new volume level to the DAC's serial port
Serial.println(Vol); // output the new volume level to the DAC's serial port

However it is still giving full volume until I touch the volume on the remote. Just for your info - it is not critical :-)
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Old 14th February 2018, 04:47 PM   #164
Dimdim is offline Dimdim  Greece
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That's weird - something got left out in my copy - paste. The correct lines are these:

Code:
  Serial.print("V-");       // output the new volume level to the DAC's serial port
  Serial.println(Vol);      // output the new volume level to the DAC's serial port
This should take care of the full volume issue..
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Old 14th February 2018, 04:53 PM   #165
Dimdim is offline Dimdim  Greece
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Crap, the platform seems to be messing it up.

It should look like this:

GB for ArDAM Lite bare PCBs-ardam-png
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File Type: png ardam.png (11.6 KB, 99 views)
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Old 14th February 2018, 05:36 PM   #166
henrylarsen is offline henrylarsen  Denmark
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thank you - it is also messing my proposal up - but that was different from what is the right thing to do.
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Old 15th February 2018, 05:13 AM   #167
henrylarsen is offline henrylarsen  Denmark
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My son came home and he showed his skills at arduino programming. As mentioned, I have a USB2I2S and a Raspberry that I can use as input for the Soekris. An Otto is used for that, via a physical contact. We took the signal pin from the Otto and asked the nano to display PC/ PI beside the volume.Click the image to open in full size.
The volume is still not adjusted, even with the new code, and we have not figured out why?

Last edited by henrylarsen; 15th February 2018 at 05:22 AM.
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Old 15th February 2018, 06:54 AM   #168
Dimdim is offline Dimdim  Greece
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It looks like I'll have my DAM back in a few days so I'll be able to do some actual troubleshooting.
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Old 15th February 2018, 07:32 PM   #169
henrylarsen is offline henrylarsen  Denmark
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no worries - you just do it in the pace that fits into your program :-)
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Old 16th February 2018, 08:11 AM   #170
zarandok is offline zarandok  Austria
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Thank, you!
Now I have a blank screen without small dots...
I'll receive the IR sensor soon.
My only task is to adapt the code for the AK4458...:P
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