EIJ on CDPRO2 - 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 12th February 2004, 10:52 PM   #1
diyAudio Member
 
Join Date: Sep 2002
Location: Malaysia
Default EIJ on CDPRO2

hi

i built the cdpro2 and also the tda1545 dac.

but can't use them as the cdpro2 outputs i2s and not eiaj. any idea how to make the cdpro2 output eiaj?

it seems i need to do something to the dsa software. but i have no idea how. can i do it hardware wise?

please advise.

thanks.

donjuan
  Reply With Quote
Old 13th February 2004, 11:35 AM   #2
diyAudio Member
 
Join Date: Apr 2003
Location: Mars
I've done this with vae1250 mechanism, i guess the command set is the same. I should search for the modified eprom, but as VAE1250 is discontinued I don't have them anymore to test.
Anyway you need an eprom programmer to burn the soft...
  Reply With Quote
Old 13th February 2004, 12:23 PM   #3
BrianGT is offline BrianGT  United States
diyAudio Moderator Emeritus
 
BrianGT's Avatar
 
Join Date: Jan 2002
Location: near Atlanta, GA
Send a message via AIM to BrianGT
The cdpro2 unit does support EIAJ, and a simple command needs to be issued over the DSA interface. I don't know you have your control board setup, but here is the command that needs to be issued.

--
Brian
Attached Images
File Type: gif eiaj.gif (13.4 KB, 654 views)
  Reply With Quote
Old 13th February 2004, 01:39 PM   #4
Bricolo is offline Bricolo  France
diyAudio Member
 
Bricolo's Avatar
 
Join Date: Nov 2002
Location: Grenoble, FR
Brian, when you use the 2FS or 4FS mode, is it oversampled or upsampled?
  Reply With Quote
Old 15th February 2004, 01:13 PM   #5
diyAudio Member
 
Join Date: Sep 2002
Location: Malaysia
hi guys

thanks for all the reply.

any other way other than dsa communication using a pc? i was hoping for hardware changes but looks like fat chance...

donjuan
  Reply With Quote
Old 15th February 2004, 02:12 PM   #6
diyAudio Member
 
Join Date: Oct 2001
Location: .
Why hardware not software?
  Reply With Quote
Old 15th February 2004, 04:11 PM   #7
BrianGT is offline BrianGT  United States
diyAudio Moderator Emeritus
 
BrianGT's Avatar
 
Join Date: Jan 2002
Location: near Atlanta, GA
Send a message via AIM to BrianGT
Quote:
Originally posted by Bricolo
Brian, when you use the 2FS or 4FS mode, is it oversampled or upsampled?
I am pretty sure that it is just oversampled for the CDPRO2, from looking over other information regarding the dac. The new CDPRO2M might be different.

Quote:
Originally posted by DonJuan
hi guys

thanks for all the reply.

any other way other than dsa communication using a pc? i was hoping for hardware changes but looks like fat chance...

donjuan
In terms of the control board, if you were using my control board, I would just need to make a small modification to the firmware. I might eventually add the selection to a menu-driven interface.

I will organize a group order sometime in the future for the controller that I designed.

Gallery from my project at:
http://brian.darg.net/cdpro2

--
Brian
  Reply With Quote
Old 16th February 2004, 01:22 PM   #8
diyAudio Member
 
Join Date: Sep 2002
Location: Malaysia
why hardware but not software?

well, if it's hardware, it's easier for me to incorporate. i can't access the firmware inside.

hi brian

interested in your controller!

donjuan
  Reply With Quote
Old 17th February 2004, 04:09 AM   #9
cm is offline cm  Singapore
diyAudio Member
 
Join Date: Sep 2003
Location: Singapore
I have done a EIAJ to I2S converter by delaying the LRCLK EIAJ signal by 7 BCK clock cycles by means of a shift register. You can see the schematic and PCB in my post on sharing my digital work.

I have not tried it but I see no reason why the scheme cannot work by delaying data by 7 clock cycles instead of delaying LRCLK as a means of converting from I2S to EIAJ.
  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
How to reclock CDPro2? cartman Digital Line Level 1 5th May 2009 07:52 PM
DSA protocol for CDPRO2 billr Digital Source 3 4th April 2005 09:17 AM
philips CDPRO2 Joules Digital Source 4 12th January 2005 08:06 PM
CDPRO2- do you just add PS? lgreen Digital Source 7 24th February 2004 09:48 AM


New To Site? Need Help?

All times are GMT. The time now is 09:39 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