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Old 16th January 2018, 08:55 PM   #91
Russ White is offline Russ White  United States
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You really should keep the CS signal the same as default as that is what hermes/cronus expects...

Why do you want the mute signal in the first place?
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Old 16th January 2018, 11:38 PM   #92
nautibuoy is offline nautibuoy  United Kingdom
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Thanks for responding Russ.

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Originally Posted by Russ White View Post
Why do you want the mute signal in the first place?
Because I want to experiment with a Hermes/Cronus isolator/reclocker in front of a version of a Signalyst DSC1 DSD decoder, which requires a mute function during DSD data changes.

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You really should keep the CS signal the same as default as that is what hermes/cronus expects...
That is what I plan and tried to set out in my earlier post, perhaps not very well. My understanding is that 'out of the box' Cronus requires high (3.3V) to be maintained on its CS pin to utilise the 24/49MHz clock and going low (0V) on the CS pin utilises the 22/45MHz clock?

Assuming so the problem would be that if you use Amanero pin 1 as the clock selector (releasing pin 11 to use for muting) it goes high to select the 22/45MHz clock, the opposite to what I believe Cronus expects so a mechanism to reverse that logic would be needed; simply swapping over the clocks on the Cronus board would seem to be the simplest approach?

I'll be using a second stock Amanero/Hermes/Cronus combo later on a Buffalo 3SE-Pro project I'm planning.
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Old 17th January 2018, 06:18 PM   #93
Russ White is offline Russ White  United States
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What I recommend is that you ask for custom firmware from amanero and utilize the pin that is not currently being used for CS. The polarity of CS is not that important - you can swap the Rhea modules as needed.

Most of all I would strongly suggest getting your project working with the amanero alone in master mode before you attempt anything else. This will give you a baseline.
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Old 17th January 2018, 07:29 PM   #94
nautibuoy is offline nautibuoy  United Kingdom
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Thanks Russ.

I'm just waiting on a delivery of a new Amanero board to be able to do exactly what you suggest and listen with it directly conected to the decoder as a baseline.

Anyway, I thought TPA were supposed to be on holiday....
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Old 19th January 2018, 02:07 PM   #95
BrianDonegan is offline BrianDonegan  United States
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Introducing the Hermes-Amanero
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Anyway, I thought TPA were supposed to be on holiday....
Well, we are still here (day job and all), just taking a break from endless nights of building/shipping... seeing how much my kids have grown and such
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