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Old 17th January 2019, 10:51 PM   #41
twluke is offline twluke  Japan
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Location: Tokyo
B3SE-Pro experimental dual mono firmware.
Default A shell script to control dual mono DACs in pure sync mode via I2C

Hi all,

In addition to a shell script to control B3SEpro DACs in pure sync mode (128fs) via I2C, I prepared another script to control dual-mono B3SEpros in pure sync mode via I2C. A BBB (or perhaps a RasPi) will be required to run this script and, prior to it, you have to confirm that both DACs are well recognized via I2C connection like below (0x48 and 0x49):

Code:
debian@arm:~$ sudo i2cdetect -r -y 1
[sudo] password for debian: 
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: 20 -- -- -- -- -- -- 27 -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- 48 49 -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- --
I'm now listening to the upsampled DSD512 sound by HQ player through the I2C-controlled dual-mono B3SEpros (9028) in pure sync mode and I must say that the sound is really great! You might want to try it if interested.

Regards,
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Old 17th January 2019, 11:03 PM   #42
Blitz is offline Blitz  Germany
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Join Date: Nov 2002
Location: Cologne, Germany
This sounds great....I would like to follow your approach, being still on 9018 dual mono...ideally want to run a dual mono 9038 in pure sync with a BBB feeding directly I2S either through Ians Fifo II or chronus...
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