i2s connection - Orange/Dac

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Dimdim

Member
Joined 2008
Dimdim said:
Just the LDOs for now - I'll resume testing once the replacement parts are in.

Normally I wouldn't have bothered fixing this board (it is after all dirt cheap), but since the LDOs were ~0.20€ I thought I would spend the 5 minutes swapping them in.

Plus it's a pretty cute little board - I couldn't just throw it away.
Click to expand...

The new LDOs came, I swapped out the bad ones and the little DAC is now alive and kicking.

There are also a couple of electrolytics in parallel to DC-in which I should probably replace.. They were exposed to reverse voltage for some time.. the strange thing is that they didn't explode.
 
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prikkeldraad

Member
Joined 2005
Hello, thanks all you guys for the amount of work you are putting in to this project. I have the orange pi plus, can anyone confirm the pin layout shown on page one is correct (there is a discussion on page three about swapping pins)?. Is the pin layout the same for the opi plus?. i bought PCM5102 DAC Decoder I2S, is it possible to get it up and running (complete newbie in linux). I think I will get the hardware in place but will have many questions later about the software. Still waiting for the cooling blocks.
Thanks in advance.
 
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Dimdim

Member
Joined 2008
dsch said:
Hi, I have changed to a other dac and this works direct with mit raspberry b and volumio. I think my es9023 is defect.

Which image do you use for the es9023, can you send a picture that I can try it again?

Regards
Click to expand...

I wrote a pretty detailed guide on enabling I2S and setting up MPD on an Orange Pi One or Lite. It will probably answer most questions.

It is here: Part 1 and Part 2
 
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Giachi

Member
Joined 2015
Dimdim said:
I wrote a pretty detailed guide on enabling I2S and setting up MPD on an Orange Pi One or Lite. It will probably answer most questions.

It is here: Part 1 and Part 2
Click to expand...

Very good job Dimdim!
For long time my Orange PI PC and my ES8023 have been in a angle.
Now I have taken out the cards and i wan't finish my mediacenter.
I want use Openelec image, and I'd like remove 3.6 LDO and use a litium battery for give power supply to the analogic section .
 
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cu6apum

Member
Joined 2013
Ok, hi there. :)
Pcm5102 and es9023 are funny of course, but what about real dacs? Of course, I'm talking of masterclock (magically absent in H3!!!) and slave clocking mode. Is there a way to feed the chip with a good clock source and get proper data out of it? Afaik, it's been done with A20/cubietruck already, and I'd love to hear something like about H3/orange.
Nothing to say about insanely poor chinglish datasheet section on iis: how the hell do they sell undocumented chips?.. How do they even make!! :D
Thanks in advance.
 
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renaudagnes

Member
Joined 2008
Hello guys...

I've installed a PCM5102A little DAC with i2S.
Everything is ok (but) :

1/ I can see the card

cat /proc/asound/cards
0 [audiocodec ]: audiocodec - audiocodec
audiocodec
1 [snddaudio ]: snddaudio - snddaudio
snddaudio
2 [sndhdmi ]: sndhdmi - sndhdmi
sndhdmi

2/ I can really see it :

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: audiocodec [audiocodec], device 0: SUNXI-CODEC sndcodec-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: snddaudio [snddaudio], device 0: SUNXI-TDM0 snddaudio-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: sndhdmi [sndhdmi], device 0: SUNXI-HDMIAUDIO sndhdmi-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0

3/ I can hear it:

sudo speaker-test -twav -c2 -Dhw:1


But I cannot understand what I have to do to be able to use it with squeezelite:

sudo /usr/bin/squeezelite-armv6hf -o front:CARD=snddaudio,DEV=1 -s 127.0.0.1
[14:16:28.343458] test_open:277 playback open error: Invalid argument
[14:16:28.344007] output_init_common:382 unable to open output device

If course I've tried with DEV=0.

Well I am stuck here, please could you help?
 
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Dimdim

Member
Joined 2008
I've got a Zero Plus and I'm using it as a network streamer connected to a USB dac. I'm very fond of it - it's a lot faster than its younger siblings and its GbE port is wicked fast (>800Mbps throughput).

I had a look at its specs and its gpio ports and I'm afraid that some of the necessary signals have not been routed to the header.

What I don't know is whether these signals can be re-routed to other pins.

On the software side, there is very little to go on. I found some mention of I2S on H5 in the Armbian forum but no actual information. One thing's for sure - it's not done by editing a FEX file.
 
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wealas

Member
Joined 2017
I just de-compiled the dtb included in the factory images and it looks like this is what we need:

daudio0@0 {
allwinner,pins = "PA20", "PA6", "PA18", "PA19", "PA21";
allwinner,function = "pcm0";
allwinner,muxsel = <0x3>;
allwinner,drive = <0x1>;
allwinner,pull = <0x0>;
linux,phandle = <0x3c>;
phandle = <0x3c>;
};

daudio@0x01c22000 {
compatible = "allwinner,sunxi-daudio";
reg = <0x0 0x1c22000 0x0 0x58>;
clocks = <0x2 0x3b>;
pinctrl-names = "default", "sleep";
pinctrl-0 = <0x3c>;
pinctrl-1 = <0x3d>;
pcm_lrck_period = <0x20>;
pcm_lrckr_period = <0x1>;
slot_width_select = <0x20>;
pcm_lsb_first = <0x0>;
tx_data_mode = <0x0>;
rx_data_mode = <0x0>;
daudio_master = <0x4>;
audio_format = <0x1>;
signal_inversion = <0x1>;
frametype = <0x0>;
tdm_config = <0x1>;
tdm_num = <0x0>;
mclk_div = <0x0>;
status = "disabled";
linux,phandle = <0x47>;
phandle = <0x47>;
device_type = "daudio0";
};


but I can't find a listing of the header pins anywhere.
 
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