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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
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Old 5th July 2017, 06:23 AM   #31
Greg Stewart is offline Greg Stewart  United States
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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
I do like the idea of a separate microprocessor to configure the DAC chip and enable the volume control. Similar to how Twisted Pear did the Buffalo DAC series... basically they need no driver, the configuration is handled on-board. DOING a driver appears to be a headache at first that keeps on giving as you have to modify it for new base distro releases and new features... Ian, you DEFINITELY want to stay out of that world!

Use the microprocessor for configuration and control and use the basic I2S output driver that is available in ALL of the distros today.

My 2 cents on this!

Greg in Mississippi
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Old 7th July 2017, 03:23 AM   #32
ZacharyP is offline ZacharyP  United States
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Following this thread with interest.
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Old 7th July 2017, 03:31 AM   #33
syklab is offline syklab  United States
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Definitely interested in this FifoPi with built-in DSD decoder.
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Old 8th July 2017, 12:22 AM   #34
TimCurtis is offline TimCurtis  United States
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Quote:
Originally Posted by Greg Stewart View Post
I do like the idea of a separate microprocessor to configure the DAC chip and enable the volume control. Similar to how Twisted Pear did the Buffalo DAC series... basically they need no driver, the configuration is handled on-board. DOING a driver appears to be a headache at first that keeps on giving as you have to modify it for new base distro releases and new features... Ian, you DEFINITELY want to stay out of that world!

Use the microprocessor for configuration and control and use the basic I2S output driver that is available in ALL of the distros today.

My 2 cents on this!

Greg in Mississippi
Hi Greg,

Interesting approach but player software still can't get access to the nice ESS hardware volume control or other ESS features :-(

Possibly a driver for this "separate microprocessor" could be made that would not infringe on ESS restrictions on open source drivers for their chips. ??

-Tim
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Old 5th September 2017, 10:32 AM   #35
TioFrancotirador is offline TioFrancotirador  Poland
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Look what I found:
ES9028Q2M Raspberry / ODROID C + DSD (I2S mode) Decoder DAC board | eBay
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Old 6th October 2017, 02:57 AM   #36
bigbear2003 is offline bigbear2003  Canada
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Originally Posted by iancanada View Post
Hi TioFrancotirador,

That's a very good idea. I like it. I'll take it into consideration.

ES9018 volume control is not bitperfact because it is a digital volume control. But it's 32 bit volume control so the accuracy is not bad.

Regards,
Ian
Is there any news on this DAC card? Thx.
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Old 13th November 2017, 11:14 PM   #37
iancanada is offline iancanada  Canada
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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
Default ESS controller

Hi guys,

Sorry for absent this thread for a long time. I'm working on something very interesting.

Yes, it's a tiny ESS DAC controller that designed for Raspberry Pi.

You just need to plug in it into the GPIO port, then you will have everything you want for your ESS DAC. I really like this small gear.

With a 32bit ARM cortex processor, it's pretty powerful however.

@TioFrancotirador
Thank you so much for your ideas about this project. I hope you enjoy a free ESS controller from me. I believe in three weeks...

I'll have more details later.

Click the image to open in full size.
EssController1
by Ian, on Flickr

Regards,
Ian

Last edited by iancanada; 13th November 2017 at 11:25 PM.
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Old 14th November 2017, 01:30 AM   #38
iancanada is offline iancanada  Canada
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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
Click the image to open in full size.
EssController2
by Ian, on Flickr
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Old 14th November 2017, 06:12 PM   #39
TioFrancotirador is offline TioFrancotirador  Poland
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That is fantastic news Ian! Can't wait then and ... post my impressions.

Last edited by TioFrancotirador; 14th November 2017 at 06:15 PM.
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Old 14th November 2017, 07:08 PM   #40
pistollero is offline pistollero  Portugal
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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
Nice work! I want one too
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