Basically Hermes is designed to work with "Cronus" which in the end is what sends the I2S/DSD signals to the B32S (or whatever DAC you use), So your chain will be BBB/Amanero/etc.. -> Hermes-(BBB/Amanero/etc...) -> Cronus -> DAC.
Cheers!
Russ
Cheers!
Russ
Yeah, very good news here !
Russ please don't go away from here for a month again, we're all worried, or gone ! LOL
I know it's just a hobby, don't worry 🙂
Russ please don't go away from here for a month again, we're all worried, or gone ! LOL
I know it's just a hobby, don't worry 🙂
Now I am completely confused
I have been eagerly following this since it started. I thought there was going to be a cape on a BBB that gives well timed jitter free I2S from a BBB into my I2S capable DAC. (in my case a TDA1541a.
Sounds like there was a paradim shift. Can someone help me understand what it is now? Does it replace my WaveIO or somehow complement it?
I have been eagerly following this since it started. I thought there was going to be a cape on a BBB that gives well timed jitter free I2S from a BBB into my I2S capable DAC. (in my case a TDA1541a.
Sounds like there was a paradim shift. Can someone help me understand what it is now? Does it replace my WaveIO or somehow complement it?
WaveIO is a USB to I2S converter. This is a way by which the BBB can be used to output I2S directly rather than via USB. In fact it can already do this but it is compromised by the poor onboard clock which is single frequency. What Russ is creating addresses this and we will have a streaming device with an I2S output of hifi standard.
Jitter free - probably not; very low jitter - yes.
With this recent talk of isolation and power sequencing, I have 2 questions, please:
i) will it be feasible to give the Cronos/Hermes-BBB combination its own power supply, as opposed to taking the BBB's 5V supply?
ii) if yes, would an unexpected power outage to the Cronos/Hermes-BBB adversely affect the (still powered) BBB?
i) will it be feasible to give the Cronos/Hermes-BBB combination its own power supply, as opposed to taking the BBB's 5V supply?
ii) if yes, would an unexpected power outage to the Cronos/Hermes-BBB adversely affect the (still powered) BBB?
linuxfan:
i) yes, isolators require two power supplies (one for each side)
ii) no, that's also what isolation should achieve 🙂
i) yes, isolators require two power supplies (one for each side)
ii) no, that's also what isolation should achieve 🙂
Will I need an Amanero board in my chain or will just the BBB be enough? I kinda got lost and I'm not sure what I'll need at this point. I have the BBB rev B and the BIII only at this point
Technical question
I have an in-depth technical question for the creators Cronos/Hermes about the design and the architecture of the boards: is there any idea (even rough) about the price range of these new jewels? 🙂
Thank you.
Best regards,
Filippo
I have an in-depth technical question for the creators Cronos/Hermes about the design and the architecture of the boards: is there any idea (even rough) about the price range of these new jewels? 🙂
Thank you.
Best regards,
Filippo
As above, if you are going to use the boards Russ is developing no USB interface is required.
No need for Amanero, and later (with appropriate driver) the BBB might be usable as USB audio interface too.
Required parts:
- BBB
- Hermes-BBB
- Cronus (with two clocks)
- DAC
Required parts:
- BBB
- Hermes-BBB
- Cronus (with two clocks)
- DAC
Miero nailed it. 🙂
I will start a thread on the Cronus/Hermes/Rhea boards as soon as the collaborators finalize the design - which should literally be today or tomorrow.
I will start a thread on the Cronus/Hermes/Rhea boards as soon as the collaborators finalize the design - which should literally be today or tomorrow.
Please, please keep the "offset" layout of your earlier Botic PCB design ie. jutting out beyond the P9 connector.
Since my BBB will be in its own (metal) case, I will then be able to connect my I2S cables to the underside of the Hermes-BBB board, and straight down to my DAC enclosure, which will sit immediately beneath.
I think you will be happy with the layout. 🙂
It is finished BTW - Brian and I are just double checking part fits and hole alignments between the BBB/Hermes/Cronus 🙂
We added the battery backup with automatic shutdown/reboot back into the Hermes along with 4 user assignable LEDs and drivers to indicate what the source is doing (Play, Mute, DSD/PCM, etc)
I have already implemented a sweet little node.js server and responsive mobile web app to control/configure the DAC/Source via the BBB. 🙂
This is going to be some serious fun.
Cheers!
Russ
is coming...Now for the archeology expedition, to find all the bits and pieces I thought I had put away in the same box with the BBB!
