Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter

[iancanada]

ReceiverPi DDC is really powerful. Here is another example project which I like very much. It make the whole project very organized. Software and hardware issue are on longer mixed up by using the RPi free configuration:

Flagship full-size full-function RPi free DDC streamer (or DAC)

Configurations:
#35C StationPi SMT
#20C TransportPi AES or #17B HdmiPi Pro or #4B ESS Dual Mono II DAC and I/V board
#1D FifoPiQ7
#19D ReceiverPi DDC
#49B MonitorPi Pro
#50A GPIO extender
Apple remote control (optional)
Power supplies:
#32B LinearPi Solo + #25B UcConditioner 5V (optional)
#41C UcPure MkIII 3.3V

Installations:

• Install the boards as the picture, use all 13mm standoffs
• Connect 5V to J3 of the StationPi SMT, make sure J9 1-2,2-4 are jumped
• Connect 3.3V to J5 of FifoPi from J9 of UcPure
• Connect U.FL coaxial cable from MCLK of FifoPi to the HdmiPi Pro or TransportPi AES or DAC
• Connect the control cable from J6 of the MonitorPi Pro to J7 of the ReceiverPi DDC
• Connect SYNC charging control cable from J5 of the MonitorPi Pro to J10 of the PurePi II

Possible upgrade:

• Upgrade FifoPi Clocks to #80A and #80B SC-Pure 45/49 clocks
• Connect 3.3V to J5 of FifoPi from the continuous output J10 or J13 of UcPure
• Insatll a RaspberryPi if really want

FlagshipFullSizeDDC

 

[MilkyChance]

Would this work?


https://www.diyinhk.com/shop/audio-...ll/141-fifo_option-null/149-free_dac_pcb-null

 

[iancanada]

@MilkyChance
You can find a lot by searching "AMANERO" in https://www.aliexpress.us/

 

[MilkyChance]

Is that stuff any good though? I don't want subpar, counterfeit parts.

 

[iancanada]

Original Amanero is also not expensive. I bought the original. See the one in the above picture.
https://amanero.com/

 

[wcwc]

Would this work?


https://www.diyinhk.com/shop/audio-...ll/141-fifo_option-null/149-free_dac_pcb-null

The header spacing doesn't match the Amanero USB.

 

[wcwc]

http://www.twistedpearaudio.com/digital/amanero.aspx

Can also buy them here. Shipping from Italy was expensive.

 

[Batenet]

Thank you for the clue.
I'm a little surprised that there is no such setting in the FifoPi Q7 controller itself, if without this option its functioning is impossible.
In the manual for MonitorPI I can't see a single hint of such an option or description of its change too.
How do you transfer a digital stream from FifoPi Q7 to your Audio-Gd R7 He Mk2? I mean, do you use any interface or feed i2s directly?

I use Hdmi Pro.

 

[melorin]

Anyone, who has MonitorPi Pro, can you test for me the following?

• Turn off the 'Continous clock output mode' in the advanced menu
• With remote control, switch to an input which has no signal (e.g. HDMI)
• Check if the remote control stops working or not

Thank you!

 

[Batenet]

I use Hdmi Pro.

 

[fusion360guy]

Anyone, who has MonitorPi Pro, can you test for me the following?

• Turn off the 'Continous clock output mode' in the advanced menu
• With remote control, switch to an input which has no signal (e.g. HDMI)
• Check if the remote control stops working or not

Thank you!

I’ve got one. What does CCOM do?

 

[fusion360guy]

I guess continuously send clock even with no music?

 

[melorin]

Yes, as you said. So if you turn this on, there will not be 'No signal' message with any input even with removed signal cable. So, can you test it?

 

[melorin]

I made a video about this problem. Video

 

[fusion360guy]

I switched the setting on. Now I get MUTE at left instead no signal. I get 48 kHz.

I then change volume and it works.
I then switch to another input unused. And volume still works.

 

[melorin]

I said turn it OFF and then try
"

• Turn off the 'Continous clock output mode' in the advanced menu

 

[fusion360guy]

Duh! 🙄
I did that. It works after. Also it seems to remember the setting for each input.
Ie one input now shows mute and other now shows no signal.

 

[melorin]

So, after you switch to an input with "no signal" on the display, the remote still works?

 

[fusion360guy]

Yes.

 

[melorin]

What is the firmware version of your MonitorPi Pro? Mine is V2.3