Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Options
View
Go to last post Go to first unread
Possum  
#1 Posted : Tuesday, January 29, 2019 3:52:05 AM(UTC)
Possum

Rank: Member

Groups: Member
Joined: 8/5/2012(UTC)
Posts: 166
Australia

Thanks: 4 times
Was thanked: 7 time(s) in 5 post(s)
After finding Russ's Hermes BBB design on Github I decided to have another go at re-purposing it to isolate and re-clock a MiniDSP Multichannel USB Streamer - and it works! (simple when you know how :-) )

UserPostedImage
meo  
#2 Posted : Wednesday, February 13, 2019 1:07:59 PM(UTC)
meo

Rank: Member

Groups: Member
Joined: 2/17/2016(UTC)
Posts: 5

Thanks: 1 times
Nice that you got it to work! I've been considering it, but the documentation is not so clear on the pinouts and such.
How does it sound? Any better?
greetings,
Marcel
Possum  
#3 Posted : Wednesday, February 13, 2019 9:36:04 PM(UTC)
Possum

Rank: Member

Groups: Member
Joined: 8/5/2012(UTC)
Posts: 166
Australia

Thanks: 4 times
Was thanked: 7 time(s) in 5 post(s)
Originally Posted by: meo Go to Quoted Post
Nice that you got it to work! I've been considering it, but the documentation is not so clear on the pinouts and such.
How does it sound? Any better?


Actually, the documentation is very clear - if you download the circuit diagram and PCB layout from https://github.com/twistedpearaudio/Hermes-BBB (you need to download diptrace too)

The important pins (all on the BBB header P9) are:
1,2: GND
3,4: VDD_3V3 (I used a 3.3V Trident V3 shunt reg to power the board)
14: Enable (pull high)
24: MCLK_SEL (pull high to select Cronus clock nearest edge of board, low to select the other clock)
25: MCLK OUT
31: BCLK
29: LRCLK
30: D0
41: D1
42: D2
27: D3



and yes, it did seem to improve the sound
Rss Feed  Atom Feed
Users browsing this topic
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.