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Question PCM/DSD - How to identify the PCM/DSD signal at Cronus
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kenaudio  
#1 Posted : Sunday, December 11, 2016 3:06:29 PM(UTC)
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Installed BBB(with botic)+Hermes+Cronus. May I know which pin at the B3 header at Cronus can identify the PCM/DSD signal (which is indicate at BBB P9_26)?
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Russ White  
#2 Posted : Monday, December 12, 2016 11:17:31 PM(UTC)
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None - because ESS DACs which we use don't need that flag.
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kenaudio  
#3 Posted : Tuesday, December 13, 2016 8:38:40 AM(UTC)
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Originally Posted by: Russ White Go to Quoted Post
None - because ESS DACs which we use don't need that flag.


Not even at Hermes?
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Russ White  
#4 Posted : Tuesday, December 13, 2016 1:26:41 PM(UTC)
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On the Hermes for BBB there is a MUX that routes the DSD signals to the correct output pins based on that signal yes - but it does not expose that signal at all - you would have to get it from the same point the Hermes MUX does. :)
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kenaudio  
#5 Posted : Wednesday, December 14, 2016 2:01:42 AM(UTC)
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Originally Posted by: Russ White Go to Quoted Post
On the Hermes for BBB there is a MUX that routes the DSD signals to the correct output pins based on that signal yes - but it does not expose that signal at all - you would have to get it from the same point the Hermes MUX does. :)


May I know where is the MUX located?
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Russ White  
#6 Posted : Wednesday, December 14, 2016 2:25:11 PM(UTC)
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I am not sure what you are after - you already know where the PCM/DSD select signal is to be found. As Miero stated in the other thread - the best solution for you would be to repurpose one of the three unused isolated digital outputs on the Cronus as PCM/DSD select. That can be done in software. :)
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