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Subject: Re: CD Changer emulation?

Re: CD Changer emulation?

From: jobarjo <>
Date: Sun, 29 Feb 2004 11:21:02 +0100

I will use a pic 16f84a

the software is almost made:

Controling the rockbox is easy. the standard remote control already sends
simple characters through the uart.
Retrieving the status from the archos is another problem.
Have to manage the half duplex protocol.

I propose that we use the same protocol.

the rockbox must be polled. it should not transmit is not required to.
we should keep the same standard control character of the remote control to
keep compatibility
then we can add some more control chars for our application:
- one for polling: the archos then transmit changes to be made to the status
controler (track pos, track number, track name, disc name. ...)
- some controls for folder changing (folder up,next,prev,down)

----- Original Message -----
From: "Travis Whitehead" <>
To: "Rockbox development" <>
Sent: Friday, February 27, 2004 2:04 PM
Subject: RE: Alpine CD Changer emulation?

> jobarjo,
> Thanks!, exactly what I was looking for. Not sure what external hardware
> are considering with your mods, but I intend to use an Atmel AVR '2300
> to couple pulses generated from a (real) jukebox wallbox to the RockBox (
> would make a pretty nice UI don't you think? ). The '2300 is well suited
> bit banging and has a built in UART that should couple up to the RockBox
> serial port quite nicely. I have only been exploring this for a few days
> and just got my first JBR ( V2 ) in the mail yesterday. In the past I have
> interfaced wallboxes (made in 1950's and 1960's) to CD changers and to
> (winamp) so that side is done. I chose Archos solely because of RockBox
> this group. Great work guys!
> Thanks again, Travis
> -----Original Message-----
> From:
> []On Behalf Of jobarjo
> Sent: Friday, February 27, 2004 7:25 AM
> To: Rockbox development
> Subject: Re: Alpine CD Changer emulation?
> there is a link on his code there.
> but it does not pilot the rockbox yet I think, it is just a test plugin.
> I personally will try to interface sony head units through external
> hardware. I am actually gathering everything.
> ----- Original Message -----
> From: "Travis Whitehead" <>
> To: "Rockbox development" <>
> Sent: Friday, February 27, 2004 1:08 PM
> Subject: Alpine CD Changer emulation?
> > Hello,
> > I found a reference to this as I researched the archives. Could someone
> > point me to this code (developed by Börg I believe)
> >
> > Thanks, Travis
> > _______________________________________________
> >
> >
> > _______________________________________________
> >
> _______________________________________________
> _______________________________________________

Received on 2004-02-29

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