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Propeller power Stereo — Parallax Forums

Propeller power Stereo

Cole LoganCole Logan Posts: 196
edited 2010-09-29 07:29 in Propeller 1
I've been toying with the idea of building a stereo using the propeller to power it. I found this board on sparkfun here to use for digital fm. I also figured I would use something like this for playing audio files off of a SD card. From what I can tell neither of these will be that hard to do.

The nest part of my project that I this could be hard is that I would like to add a CD Drive and be able to play audio CDs. I was just wandering if anybody has done anything like this and how hard you think this would be. The other thing is that all of these will have different audio outputs so I will have to figure out a way choose what output to send to the amplifier. Right now this is just a thought experiment because I'm at AIT and won't be able to play with any of this until at least December.

Comments

  • WBA ConsultingWBA Consulting Posts: 2,935
    edited 2010-09-27 23:05
    There's no reason why that won't all work. For the CD-ROM drive, I recall seeing an adapter board somewhere that plugged into an IDE CD-ROM drive and gave you a way to control playing audio CDs with serial commands. Of course I can't find anything on it now, but it's out there somewhere. You could also use one of the older CD-ROMs that has the controls on the front for playing audio CDs and just hack those buttons to control with the propeller. You'd have start/stop/next/back so that should be good enough.
  • smbakersmbaker Posts: 164
    edited 2010-09-28 23:24
    WBA Consulting wrote: »
    There's no reason why that won't all work. For the CD-ROM drive, I recall seeing an adapter board somewhere that plugged into an IDE CD-ROM drive and gave you a way to control playing audio CDs with serial commands.

    I recall seeing this thing advertised in Nuts & Volts a few times:

    http://www.jaycar.com.au/productView.asp?ID=KC5459

    Appears to be based on an article from here:

    http://www.siliconchip.com.au/cms/A_109528/article.html
  • Cole LoganCole Logan Posts: 196
    edited 2010-09-29 05:44
    Looking at the article it looks like it would be easy to do. Though I migh end up with one prop just as a controller for the CD drive. But it will have plenty of power because all they are using is an ATMEGA8515. Though the project takes 23 pins using the full 16bit data bus, but it looks like you could actually get away with only 8bit bus. and I will have to look more later because I think there are some ways to multiplex some of the lines.
  • Cole LoganCole Logan Posts: 196
    edited 2010-09-29 07:29
    I've also found this link ATAPI Packet
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