Raspberry Pi -A New DIY'ers Digital Hub? - Page 2 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 1st January 2012, 08:58 AM   #11
diyAudio Member
 
thaumaturge's Avatar
 
Join Date: Aug 2011
Location: Utah
Quote:
Originally Posted by benb View Post
(through a USB hub, it's only got one USB connector onboard)
It's a double high.

Doc
__________________
Ne timeas a facie mulierum ea ignorare
  Reply With Quote
Old 1st January 2012, 09:27 AM   #12
diyAudio Moderator
 
pinkmouse's Avatar
 
Join Date: Apr 2002
Location: Chatham, England


Threads merged.
__________________
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote
Old 1st January 2012, 10:44 PM   #13
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally Posted by pinkmouse View Post
...handy module for developing cheap and easy to use digital playback systems.
I was thinking of a controller for biasing/switching in an amp i am envisioning...

Wonder how easy it would be to get a FORTH stack running on it? Been 40 years since i implemented one of those thou.

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 1st January 2012, 10:52 PM   #14
diyAudio Moderator
 
pinkmouse's Avatar
 
Join Date: Apr 2002
Location: Chatham, England
Isn't that the one with the Reverse Polish Notation? Never got my head 'round that!
__________________
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote
Old 1st January 2012, 11:24 PM   #15
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Yes, very simple, small, powerful & can be very quick for an interpreted language.

Ideal for writing a compact & elegant machine control language.

dave

PS: googling the subject has turned up a wealth of FORTH on arm hits.
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 5th January 2012, 12:36 PM   #16
diyAudio Member
 
Join Date: Feb 2008
Yup, this thing is a fully fledged pc that can currently run a few different linux distributions - I believe the development OS they are using most is Fedora.

There's no need to fiddle around with assembly language, or even C. Compiling a nice high level object oriented language like Java should be no problem. As dave mentioned, its basically an iPhone/android. I've written a couple of android apps - theyre written in java.

It also has a load of GPIO (general purpose I/O) pins. I don't know exactly what they are capable of as yet, but it could be that with the right software they are capable of almost anything.

I'm very interested in sitting this thing in a box with a Buffalo DAC, doing crossover and equalisation in software and feeding the DAC I2S.
BuffaloIII supports up to 8 channels over I2S, so maybe this is possible (I have a BuffaloII though, maybe it only supports 2?). I'm excited anyway

Last edited by valleyman; 5th January 2012 at 12:43 PM.
  Reply With Quote
Old 5th January 2012, 09:00 PM   #17
deandob is offline deandob  Australia
diyAudio Member
 
Join Date: Oct 2002
Location: Brisbane, Australia
Quote:
Originally Posted by valleyman View Post
Here's some good news for everyone:

RaspberryPiBoard - eLinux.org

The GPIO pins are able to output I2S. I'm going to get my hands on one of these when they're available for sure. I'm a software developer by trade... I hope I'll be able to get my head round making that happen!
This is an interesting board at this price point - the USB chip supports high speed (480Mbps) USB so for $25 and a small memory card you could boot linux with a dedicated small app running to convert from USB High Speed (with UAC2) to I2S without too much difficulty (for hirez or multichannel audio). The $35 device supports USB 2.0 but its not clear if the cheaper model with the embedded USB support in the SoC supports High Speed 2.0.

Could be a nice open source project!
  Reply With Quote
Old 19th January 2012, 08:00 PM   #18
diyAudio Member
 
linuxworks's Avatar
 
Join Date: Jul 2008
Location: santa clara, CA
I'm considering this as a web back-end for control.

my controller of choice, these days, is the arduino. its fast, talks very low level and is probably secure (no tasking o/s, no remote users, no nothing - just your code!). but the arduino is really too simple to be involved, directly, in the network.

the pi system, though, could have a full IP stack (in software, unlike the arduino ethernet shield which is ip-stack-on-a-chip) and it could have ip-tables or whatever firewall stuff you want. to me, that's the minimum needed to be a 'host' on a network. even a trusted network, I insist on some inbound security and access control. when you can change things via network, you need some decent access control. a linux software imple. can do this.

then, couple the linux engine to the arduino control engine over serial. not hard and its a nice abstract link. you can even debug and simulate each side on its own. and one does not need the other; you can have the core function of the box still run (arduino based) even if the optional networking feature is not installed. if you did the whole thing on the linux-pi board, you'd *have* to always have it. I'm not sure I like that architecture.

as soon as the pi's are buyable, I'll get one and see if its the linux engine I'm hoping it can be. ethernet on one side, lots of linux sw in the middle and some usb's and serial ports for comms: "mmm, that's good computin'!"
__________________
My Photostream:http://www.flickr.com/photos/linux-works/
  Reply With Quote
Old 7th February 2012, 11:16 AM   #19
diyAudio Member
 
abraxalito's Avatar
 
Join Date: Sep 2007
Location: Hangzhou - Marco Polo's 'most beautiful city'. 700yrs is a long time though...
Blog Entries: 109
Send a message via MSN to abraxalito Send a message via Yahoo to abraxalito Send a message via Skype™ to abraxalito
Just found this link to the technical specs on the SoC on the Ars blog, seemed to me that people here might be interested.

Broadcom BCM2835 ARM Peripherals - PDF
__________________
Seek not the favour of the multitude...rather the testimony of few. And number not voices, but weigh them. - Kant
The capacity for impartial observation is commonly called 'cynicism' by those who lack it.
  Reply With Quote
Old 7th February 2012, 11:35 AM   #20
diyAudio Member
 
Join Date: Feb 2009
Location: Brisbane, Australia
Yeah, that was only released to the public VERY recently in this - Two things you thought you weren’t going to get: a manufacturing date and an SoC datasheet | Raspberry Pi

Also mentions that they now have a end date for production in mind and hope to have the first batch of 10,000 for sale by end of the month!
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Tractrix in 1*Pi and 2*Pi revintage Multi-Way 21 26th August 2011 10:37 PM
Headphone Hub?? baronofhell Headphone Systems 3 26th May 2007 01:37 PM
centering hub for cdpro skyraider Digital Source 0 1st July 2005 08:08 AM
what to do with that old lan hub karma Everything Else 25 27th May 2003 06:58 AM
Barcode around CD hub? Circlotron Digital Source 0 13th February 2003 01:34 AM


New To Site? Need Help?

All times are GMT. The time now is 12:16 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2