When Added Commander X16 CD-ROM Add-on?

Chat about anything CX16 related that doesn't fit elsewhere
TomXP411
Posts: 1793
Joined: Tue May 19, 2020 8:49 pm

Re: When Added Commander X16 CD-ROM Add-on?

Post by TomXP411 »

Edmond D wrote: Sun Dec 22, 2024 6:54 pm
RulsanSoftware wrote: Thu Dec 19, 2024 1:59 pm Need CDDA on CX16's CD-ROM Add-on
Can I ask what is CCDA?
It is the initialism (not acronym) for CD Digital Audio. In other words: this lets you play music and audio CDs through the computer's speakers.

Usually, CD-ROM drives have a 4-pin analog audio output on the back. If you connect this output to the matching motherboard input, you can start a compact disc playing in the drive, and it will play though the computer's sound system, without using the host CPU. Some CD players even had an LCD panel and track selection controls on the front. Others sometimes had a single "Play" button. Either way, users could control CD playback from an app on the computer.
Edmond D
Posts: 497
Joined: Thu Aug 19, 2021 1:42 am

Re: When Added Commander X16 CD-ROM Add-on?

Post by Edmond D »

Thanks for the explanation Tom, as a Google of CDDA wasn't productive.

Building in a (music) CD player into an X16 system sounds possible. Like others state it's probably not going to happen unless someone takes up the challenge. I don't see al lot of interest or demand yet.

For myself, I bought an X16 to relive the 1980's experience; that included several limitations that are acceptable to me.
RulsanSoftware
Posts: 8
Joined: Tue Nov 26, 2024 7:41 pm

Re: When Added Commander X16 CD-ROM Add-on?

Post by RulsanSoftware »

Commander X16 CD-ROM Add-on Idea is Good Idea
Edmond D
Posts: 497
Joined: Thu Aug 19, 2021 1:42 am

Re: When Added Commander X16 CD-ROM Add-on?

Post by Edmond D »

RulsanSoftware wrote: Mon Dec 23, 2024 7:45 pm Commander X16 CD-ROM Add-on Idea is Good Idea
I never said it wasn't a good idea. Rather I stated my opinion that it wouldn't be something I wanted/needed.
voidstar
Posts: 512
Joined: Thu Apr 15, 2021 8:05 am

Re: When Added Commander X16 CD-ROM Add-on?

Post by voidstar »

Hmm, trigging that CD-play using VIA#2 sounds like an interesting challenge.

It's been awhile since I've played with those 4-pin connectors on the CD-ROM. Were they left/right audio only, or was it actual signal commands also? In otherwords, is the command to issue the "Play CD" command through that 4-pin connector or does it go through the PATA (IDE) connector?

So if that's all was meant by the X16 supporting CD audio - yea, that'd be neat (since yes, it should be self contained and the host CPU is not involved). The extra DC power connector on the picoITX PSU could be used to power the CD-ROM (some have Molex or SATA to Molex adapters, I've used it to power small DC LCDs).

Right, the host CPU isn't involved, it's just cueing the drive itself. Then features like Next/Skip, Pause, etc. But I'm not sure where a spec is (I guess the signals could be captured by an inline monitor).
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