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Old 26th March 2015, 05:35 PM   #41
BrianDonegan is offline BrianDonegan  United States
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Cronus - It's about time.
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Originally Posted by dwjames View Post
Do you have a good picture of the finished and populated Cronus board anywhere?
I'd like to understand power and output connectors.
Also, is the Cronus output isolated or is the isolation just in the hermes?
thanks,
James
I will try to get pictures done tonight, but more likely tomorrow. Also working up some diagrams.
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Old 26th March 2015, 05:50 PM   #42
BrianDonegan is offline BrianDonegan  United States
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Cronus - It's about time.
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Originally Posted by gioz View Post
Hi, is possible to use with Buffalo 2 at 384khz?
At this moment I have Amanero+Buffalo 2 how should I integrate?
Thank
Yes, though connecting the external clock is a bit more tricky with the B-II.

1) You need to remove power to the on-board XO, which is done by removing the L3 ferrite on the bottom of the board.

2) You can connect the external XO to the label side of the R17 pads and to GND.

Other than that, you use Amenero with the Hermes-Amenero, connect them to Cronus, then to the B-II input header. There is a separate output for MCK on the Cronus to make the connections noted above.
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Old 26th March 2015, 05:57 PM   #43
adastra is offline adastra
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I'm sorry if I'm way off base here, haven't followed the project that closely, but could Cronus be adapted to be a word clock generator/distributor in a pro audio setting?
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Old 26th March 2015, 06:05 PM   #44
Russ White is offline Russ White  United States
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Quote:
Originally Posted by adastra View Post
I'm sorry if I'm way off base here, haven't followed the project that closely, but could Cronus be adapted to be a word clock generator/distributor in a pro audio setting?
Very possibly - but that was not a design goal.
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Old 26th March 2015, 06:06 PM   #45
adastra is offline adastra
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Originally Posted by Russ White View Post
Very possibly - but that was not a design goal.
Cool thanks, I'll have to follow the project and give it some thought as the documentation develops. Love y'alls stuff btw, my BIII has been singing for a few years now.
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Old 26th March 2015, 09:39 PM   #46
Supersurfer is offline Supersurfer  Netherlands
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Finally!congratulations

I have ordered Cronus and Hermes/rhea. Can't wait till it finally arrives!

Regarding the bbb-pi debate; the new raspberry pi 2 is a quite different board than the old one. There is also much more development (hardware and software) in the Pi camp. So maybe it is worth investigating again.

Regards,
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Old 26th March 2015, 09:45 PM   #47
Russ White is offline Russ White  United States
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Thanks to all for the kind words. I can't wait until you get to experience what I am currently experiencing - which is spectacular audio coming from my BBB (and amanero - just not at this very moment)

It will very very cool to hear back from you all.

As for RPI-2 I have four of them. I like them a lot. If we can get them to accept an external audio master clock we will be all set - otherwise you really can't do it right - you might as well just use it straight into an ASARC DAC like the B3/B3SE - or use it with our Metronome (that is what I have been doing into a COD and Opus).
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Old 26th March 2015, 09:52 PM   #48
Russ White is offline Russ White  United States
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Here is the Hermes-BBB thread for BBB/Botic specific questions and such.

Hermes-BBB/Botic cape for BeagleBone Black
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Old 26th March 2015, 10:04 PM   #49
Russ White is offline Russ White  United States
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It is never *ever* a good idea to mix time domains - you will always introduce errors and lose data. This is because the source clock and the relocking master clock can never be in synch. The problem is you simply cannot correctly reclock an RPI without using a FIFO etc. By the time you do that you will be much better off with BBB.
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Old 26th March 2015, 10:23 PM   #50
Supersurfer is offline Supersurfer  Netherlands
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So that means that all asynchronous usb receivers will perform sub-optimal?
That will rule out basically all PC based music servers...........

Embedded and I2S coupled is the way to go than!
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