HOWTO: C1+ with other I2S DACs like Audiophonics ES9023

[gkkpch]

Hi,

refer to this post on the Odroid-C1+ forum to see how you can connect other I2S DACs,
like the 24bit/192Khz Teradak ES9023 or the Audiophonics ES9023, to an Odroid-C1+:
http://forum.odroid.com/viewtopic.php?f=116&t=15741&p=102799#p102799

Gé

[jazzaj]

I plan to do something like that but for an Audio-gd DAC (ES9018) via RJ45 I2S input. I'm just waiting for the C1+ release !

For this, you need to select ODROID-DAC from Audio output interface in the MPD menu, this selects I2S and enables output from the DAC.

That means that we don't need to allow/uncomment anything in /boot/config.txt like for the PI?

[gkkpch]

Hi jazzaj,
the image for the C1+ defaults to "DAC enabled" (preset in /boot/boot.ini).
You do not have to change anything manually.

EDIT!!
Sorry, I was wrong, it does not. Currently you do need to enable the DAC in boot.ini, see the following post from Frank:
http://www.runeaudio.com/forum/odroid-c1-c1-now-officially-supported-by-runeaudio-t1343.html#p8027

@Frank: can this can be changed in a future update?
A C1 will work wenn boot.ini is set to "enabledac", it is perhaps not quite as efficient for a C1 (doubt if you will notice) but makes it easier for less experienced users.

Gé

[Tinitus]

Hi Gé,

that will be helpful for lots of people thumbs up for the good work.

Regards

Uwe

[gkkpch]

There is another one that works with a C1+ : http://www.runeaudio.com/forum/plaindac-plaindsp-universal-i2s-dac-s-from-under-10-t2822.html
Dirt cheap for a 32bit/384Khz device...

[jazzaj]

Hi all,
I tried to make a I2S cable for my Audio-gd NFB1 (ES9018). I'd asked Kingwa from Audio-gd about connection from the I2S output to the RJ45 input and he said I was right (see below) ...
I enable DAC in boot.ini (even if my DAC is ES9018 and not PCM5102) but unfortunately, I can't have sound fron my C1+...

Connections for the RJ45 pin map is (ES9018, so MLCK is going to GND):
Pin 1 : SDATA
Pin 3 : LRCK
Pin 5 : SCLK
Pin 2,4,6,7,8 : GND

And the map for Odroid 7 pins is :
Pin 1 : GND
Pin 2 : I2S data in (reserved)
Pin 3 : 5V
Pin 4 : I2S MCLK (Master Clock)
Pin 5 : I2S LRCLK (LR Clock)
Pin 6 : I2S SCLK (Bit Clock)
Pin 7 : I2S Data Out (for DAC)

So my cable's map, according to Kingwa, is (RJ45>Odroid 7 pin) :
[RJ45]Pin 1 (SDATA) > [odroid]Pin 7 (I2S Data Out)
[RJ45]Pin 3 (LRCK) > [odroid]Pin 5 (LRCLK)
[RJ45]Pin 5 (SCLK) > [odroid]Pin 6 (SCLK)
[RJ45]Pin 2,4,6,7,8 (GND) > [odroid]Pin 1 (GND)

And no sound :/

I tried to do the same for my old RPI2 without more success but probably because of the DAC interfaces in /boot/config.txt that need I2C bus response (see HERE)
But this time, I don't understand why it goes for Teradak Sabre ES9023 or Audiophonics Sabre ES9023 and not for the NFB1

[gkkpch]

Hi
what happens if you do not connect MCLK at all (instead of connecting to GND)?
And how is it powered?

[jazzaj]

All the pins of a RJ45 must be connected. And the Audio-gd boss said that my map is right (I guess he knows what he says )
And my DAC is 220v connected :

[odroider]

What is the over-sample value on your ES9018 DAC mclk input pin?
As far as I know, ODROID-C1+ mclk output is 256FS at 44.1Khz~192Khz and 128FS ~384Khz.
It seems your DAC doesn't accept mclk signal.

[hondagx35]

Hi odroider,

It seems your DAC doesn't accept mclk signal.

He connected the MCLK signal to GND.

Frank