IDE CD player through PIC

[wmmullaney]

I have lots of very old cd drives(2x) laying around and I was wondering, is it posable to connect a pic to the drive and have buttons to 1. PLAY 2. SKIP FORWARD 3. SKIP BACK and 4. STOP. (Audio through the headphone port) I have looked in Google extensively, I need schematics and code for (PIC16F628A).

Thanks William

 

[blueroomelectronics]

If they have the buttons and a headphone jack they most likely only need power to work.
It's a big effort otherwise for little gains.
**broken link removed**

 

[wmmullaney]

I'm sorry, the drives have 1 button, what I meant is buttons connected to the pic.

 

[wmmullaney]

Can I do it with just a PIC or do I need other chips?

 

[blueroomelectronics]

How good are your building and PIC programming skills? Are you comfortable with soldering and wiring point to point a PIC, pushbuttons and 40pin IDC connector? You have a spare PC power supply with +5 & +12?
A CD player is a cheap device now, you can even get them from Goodwill for almost nothing.

 

[wmmullaney]

I'm okay at programming, and good at soldering, I have a 40 pin connector, and a power supply, the project is for pic programming skills and doing something with all my drives. I don't have any idea how to communicate with the drive, thats the problem, I need some code to look at.

 

[blueroomelectronics]

From your previous posts I thought you were new at PIC programming.

 

[futz]

http://www.pjrc.com/tech/8051/ide/wesley.html
http://www.telegraphics.com.au/sw/info/picide.html
http://hem.passagen.se/communication/ide.html

 

[blueroomelectronics]

Some neat links there futz

 

[wmmullaney]

Thank you, futz, that's not what I want. Those links connect to hard disks, I want a simple cd rom only connection.

Yes Bill, I am new, but I am catching on, I just need some simple instruction, and maybe a little code.

 

[BeeBop]

Thank you, futz, that's not what I want. Those links connect to hard disks, I want a simple cd rom only connection.

Yes Bill, I am new, but I am catching on, I just need some simple instruction, and maybe a little code.

But those links ARE what you need to do it. The files on a CD are written in a file system, and you need to know how that system works before you can access them. I think it is a difficult project, and you might want to try accessing an SD or MMC card as a first step.

 

[Nigel Goodwin]

I have lots of very old cd drives(2x) laying around and I was wondering, is it posable to connect a pic to the drive and have buttons to 1. PLAY 2. SKIP FORWARD 3. SKIP BACK and 4. STOP. (Audio through the headphone port) I have looked in Google extensively, I need schematics and code for (PIC16F628A).

Presumably you want to create an audio CD player using a CD-ROM and a PIC?. There have been various examples on the net, but you need a larger device than a 16F628, the 16F877 is what you need.

However, the problem is that most of the sites no longer exist, so you need to do some serious googling!.

My personal favourite was

**broken link removed**

which also hosted the famous heart monitor, but it's long gone

I really wish I'd saved it while it weas there!.

 

[BeeBop]

I really wish I'd saved it while it weas there!.

Yes, I have experienced the same, and as a result try to archive all that is interesting. The problem is that I spend WAY more time on the web!

 

[wmmullaney]

Does anyone just have some code? Does the PIC need to understand the file system? I thought it just commanded the cd player to play through the audio port.

 

[wmmullaney]

An SD card reader would be harder, right?

 

[blueroomelectronics]

Point is that the project can be done but it's a fairly advanced project either way. The SD card has no audio and you'd need to build an MP3 decoder (SOIC too).
Try a simple project, get your feet wet. Flash some LEDs then build a clock. The IDE drive would be an easier project but difficult as it's no longer a popular project. The links futz posted contains most of the info you'd need to begin, but you're going to have to understand how IDE works first. You still need a power supply, are you going to use a nice noisy PC supply to run it. ATX supplies you'll have to mod the ATX cable to turn it on & off.
Why don't you try building and programming the "Magic lamps" from the other thread first.

 

[wmmullaney]

I'v already written a binary clock, led flasher, and a program that deals with weird numbers. I am having all sorts of trouble JUST getting a pc to program my pic, I need to have 12v to enter HVP (JDM) and I only have one computer that can do it, but, on that computer I can't format the hard drive for win98, (I am using the startup floppy) my drive is 20 gigs and Fdisk insists that it is 7 mb, and making a partition results in a 7 mb disk. If I can get this computer to work, I already have my hex files, I should be good to go.

I will write the code for my "MicroMagic Switchboard"

I'v tried multiple HDs, still 7mb.

 

[blueroomelectronics]

Ok here's a project for you and it's an excellent one IMO.
A PICkit2 as writing any complex code for a PIC is much easier with a debugger and a proper programmer.
I've built my first one by hand, then I turned it into a kit. The manual on my site includes the schematic and the firmware is part of MPLAB or PICkit 2 software and you can use your JDM to program it initially.
**broken link removed**
The Junebug PK2SE prototype.

 

[jumides]

http://www.pjrc.com/tech/8051/ide/wesley.html
http://www.telegraphics.com.au/sw/info/picide.html
http://hem.passagen.se/communication/ide.html

thanks for the link,

 

[Nigel Goodwin]

Does anyone just have some code? Does the PIC need to understand the file system? I thought it just commanded the cd player to play through the audio port.

It does, but you still have to read the TOC off the disc.