just to make sure you want every header in Hermes, male and make Cronus a female.😉 no Gender identity crisis allowed....
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Yes - for the two headers (BBB, and Hermes) put the male parts on the bottom of the Hermes-BBB. It just makes it a bit simpler to align. The other way will work though. 🙂 Yikes - no good way to avoid the bad humor.
Actually it is not a real mistake. I just mistook B3 header for B3SE. Reading small letters before soldering is quite important 😀.
so far things are good. some discussions were going on about soldering power supply connectors on one side over the other. just cant figure out where was it?
If you put Cronus terminal blocks on the bottom they will never interfere with anything on the top.
Hi Russ,
OPUS needs MCK input from Cronus. Where can I find the clock output on the board? Maybe the hole for mck near the output header?
Thank you for your reply. I'll try this option later with another Cronus board reserved for Opus.
Thank you, Russ. This scheme was of great help to locate the MCK output pin and now my dual mono Opus with volumite installed is working well with another set of BBB/hermes/cronus boards and botic driver, which was of course confirmed to work perfectly with B3SE. The sound is superb!
BTW, I found that H/W and S/W dividers are not working with Opus, as long as my current dac setting, though almost default, is concerned.
With 45/49 clocks set to J1:2, the MCK output on the scope remains the same. This is also the case with S/W divider by miero after editing kernel option.
Just wondering I might have missed something essential because it appears these settings were all bypassed. As of this writing, 22/24 clocks are on the Cronus.
Anyway, thanks for this comprehensive scheme.
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The MCK header/connectors provide the actual master clock - not the divided master clock. This is by design. 🙂 You could take the divided clock from the hermes end - but I would not really recommend it.
Russ, I have the 49.15 MHz and 45.158 rhea boards. I guess there is no particular order to solder them? There is X1 and x2 marked on board.
Does the above post from Twluke means I need a different Rhea board for Opus to work with Cronus? I am concerned with playing 44.1kHz material without re sampling .
Does the above post from Twluke means I need a different Rhea board for Opus to work with Cronus? I am concerned with playing 44.1kHz material without re sampling .
WM8741, aka Opus, supports the MCK only up to 33.86/36.86. So 45/49 is beyond the ranges. Plan B option hinted by Russ may work but he did not recommend it (probably due to the disruption of the time alignment integrity intended for Cronus).
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Ok, that means I have to buy a new clock crystal. What type of crystal I should be searching for in mouser ? TTL , CMOS , HCMOS ?
Does it have to be a pair or just one crystal 22.579MHz for ( CD audio) only will work with Cronus ?
What does Rhea boards do other than converting Smd to DIp ?
Does it have to be a pair or just one crystal 22.579MHz for ( CD audio) only will work with Cronus ?
What does Rhea boards do other than converting Smd to DIp ?
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22/24 Rhea boards from TPA are ready for your order. Don't waste your time.
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Twluke do I need the pair or just 22.579 is all I need for 44.1khz to work. Also I am under the impression they are sold out in TPA and won't be available until May.
Check their page. You'll find the items are all available for ordering. In your case a 22.579 Rhea board will suffice your need. They say shipping begins in the week of May 4. Don't miss the train.
I think i made a mistake, I did not see the DIP sockets that came with Rhea so end up soldering the Rhea modules to Cronus. Now trying to de- solder them. It seems like it is not possible to take them off. I am stuck
Don't give up. Welcome to the world of DIYers. First learn how to de-solder by watching many of YouTube archives. There are a plenty of methods to desolder. Find the best way you think you can dare to manage. Good Luck.
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