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AZ OLED setup kits for Soekris dam1021/1121 control
AZ OLED setup kits for Soekris dam1021/1121 control
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Old 11th July 2017, 09:01 AM   #181
bambadoo is online now bambadoo  Norway
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Quote:
Originally Posted by audiozen View Post
Using J11 to connect the raspberry pi, you need to remove three 33 ohm resistors. This way, the i2s is the raspberry pie, but the hdmi i2s isn't available.
Attachment 619601
Are there any advantages of converting the rpi i2s to i2s(lvds/hdmi) and using the sk1021 i2s(hdmi) - in?

Or is it just as good as connecting rpi i2s direct to the sk1021 via J11 or direct coupled to the dac as I have?

I will test both options as I have several small pcbs i2s to i2s(lvds) - hdmi tranceivers produced.

Under is my prelimenary setup. rpi direct coupled via hifiberry digi+ pro to the dac for the time being. Tapping 5vdc to the rpi from the sk1021.
Prototype i2s-hdmi tranceiver upper left.
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Last edited by bambadoo; 11th July 2017 at 09:06 AM.
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Old 11th July 2017, 01:48 PM   #182
bambadoo is online now bambadoo  Norway
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Success. Testing rpi i2s to i2s(lvds/hdmi) and using the sk1021 i2s(hdmi) - in.
Works like a charm after some "fiddling".
Unable to tell if there are any changes in sound between i2s direct or converted to lvds.
They both sound excellent With this setup using the rpi as a standalone streamer to the sk1021/dam1021 will be a great setup
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Old 11th July 2017, 02:18 PM   #183
dabore84 is offline dabore84  Netherlands
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AZ OLED setup kits for Soekris dam1021/1121 control
Quote:
Originally Posted by bambadoo View Post
Success. Testing rpi i2s to i2s(lvds/hdmi) and using the sk1021 i2s(hdmi) - in.
Works like a charm after some "fiddling".
Unable to tell if there are any changes in sound between i2s direct or converted to lvds.
They both sound excellent With this setup using the rpi as a standalone streamer to the sk1021/dam1021 will be a great setup
Thanks for testing! So it doesn't matter how I connect it, they both work fine?

With hdmi is neater, but more parts Else I need to make a nice 5 pin connector. Or put the rpi in the dac hahaha!
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Old 11th July 2017, 03:05 PM   #184
audiozen is offline audiozen
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You can use 2*10p interface for the combo384.
I think I2S is definitely better than I2S LVDS over hdmi in short distance transmission.
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Old 11th July 2017, 06:40 PM   #185
szczemirek is offline szczemirek  United Kingdom
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Quote:
Originally Posted by audiozen View Post
Looks like the TX should be ok, and the RX is not ok.
Show your wiring pix, please. Also, make sure your dam1021 firmware is 1.06.
Please check.
[IMG][Sok.jpg](https://postimg.org/image/zacrahqez/)[/IMG]

Last edited by szczemirek; 11th July 2017 at 06:45 PM.
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Old 12th July 2017, 03:56 AM   #186
audiozen is offline audiozen
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Quote:
Originally Posted by szczemirek View Post
Please check.
[IMG][Sok.jpg](https://postimg.org/image/zacrahqez/)[/IMG]
You've got a wrong connection, so the wiring could burn the chip. Use DAM1201's J3 instead of j10. Please read our manual carefully.
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Old 14th July 2017, 07:49 AM   #187
nautibuoy is offline nautibuoy  United Kingdom
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I have a Soekris DAM1121-01 due to be delivered today and have an AudioZen SK Lite on its way to me so I'm work on how I'll implement my DAC build.

A question: Unlike the DAM1021, the DAM1121 only has one means of connecting the SK Lite, pins 10 & 12 of J2. With the SK Lite connected how can I use a serial interface to upload new filters? Can I just connect a serial interface to J2-10 & J2-12 along with the SK Lite or does it require some sort of switching arrangement? Thanks.
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Old 16th July 2017, 11:30 AM   #188
audiozen is offline audiozen
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DAM1121 can not directly connect to the computer serial port.
Please refer to the manual and connect the 1K resistor to dam1121 com pins. You should connect RS232 and SK Lite at the same time. I think there is no need for the switch.
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Old 16th July 2017, 11:39 AM   #189
nautibuoy is offline nautibuoy  United Kingdom
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Quote:
Originally Posted by audiozen View Post
DAM1121 can not directly connect to the computer serial port.
Please refer to the manual and connect the 1K resistor to dam1121 com pins. You should connect RS232 and SK Lite at the same time. I think there is no need for the switch.
Thank you and sorry for my lack of clarity in not referring to the resistors - I assumed them as a given.
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Old 17th July 2017, 09:52 PM   #190
Algar_emi is offline Algar_emi  Canada
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AZ OLED setup kits for Soekris dam1021/1121 control
Audiozen do you know when you can ship my kit?
Thanks
SB
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