Using J11 to connect the raspberry pi, you need to remove three 33 ohm resistors. This way, the i2s is the raspberry pie, but the hdmi i2s isn't available.
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I need some explanation here:
I understand that 2 sources of I2s are supported currently by AZ board as Soekris is prepared for it. So they are:
1. Amanero USB to I2S
2. HDMI for Direct I2S?
Is there any digital switch which differentiate them for Soekris?
Is it visible on display?
Second topic:
I am going to create external on/of switch for choosing the input between Raspbery Pi (or Tinker Board) and HDMI. I want to still keep functional HDMI(I2s) as is now, just to have possibility to switch manually to RBPi. Should I brake/cut PCB paths between I2S and resistors? .
Which paths I need to cut? All of them or it is enough to cut GND and 3,3V? Or perhaps can I connect RPi directly to isolated I2S input on Soekris? And leave this HDMI as is?
I really appreciate your support but...As mentioned goal is to connect 3 sources to 2 inputs. I don't want to dismantle/deactivate HDMI (remain used by external transport) and sometime I will use Amanero for my PC (resistors I guess should remain in such case?) . Should be HDMI or Amanero switchable witth this RPi?
Could you elaborate on this in free moment? Thank you
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Thank you for drawing I used it to create own version for 320*70mm . Here is my multilayer CAD draw(so simply switch off measurements or print layer if openings are needed only).Since the chassis has not been progressed, so I put the back panel files of the chassis for reference.
I decided to buy ready full aluminium case WA50 -you can find it ie on eBay as it already has big windows in the front and 2 knobs (transparent screen is attached).
I used opportunity to utilize additional space and added Raspbery Pi /Tinker Board section with switch between I2S (HDMI) and RPi.
Additional socket holes are standard Neutik D type.
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I think there is misunderstanding between us. I won't use both inputs in same time, but find the best way to manually switch between them. So I2S or RPi manual switch is something I need.I asked you for the support as you know it better. thanx
I ordered the AZ1021 (non-lite). Is it possible to to build a tube buffer using the signal off j13? If so, what would you recommend for hooking up RCAs (I only will use the DAC single ended). I could leave the board intact and add a another RCA set or remove the RCAs from the board and use them. Any other ideas/thoughts?
