Hehe!!

That was a good one   

Very nice vitat!

-sorry vitat, didn't mean to stress you out over it 
It's not that improtant right now, since i have exams the next month or so...
Have a nice saturday evening. (  i think i'll go out for a beer!! )

Sounds nice, Thanks

Hi vitat!

I use the VS1001K chip for my Yampp3/USB.


I mean: Are you planning on making an update of the code "yampp_pioneer_v2.2" so it will support the USB interface, and YADL disk layout used in the Yampp3 firmware, version 1.30?

I would really like that, cause then I can build it into my car, and put new music on it with a laptop in the car. (without having to unplug the HDD and plug it in to the PC with the 44 pin cable).

Thanks.   

Hi!

No problem!

Yes, i see...
I use a 15 MHz Xtal for the vlsi chip, and have enabled the clock doubler in the chip ( = runs at 30 MHz). It plays MP3's up to 320 kbps, but with small errors in the sound... The sound is best with mp3's around 192 - 224 kbps.
------------------------

Any word on if/when the USB ability might be working in the Yampp Pioneer software you made?

Hi vitat!   

I just wanted to ask if you are planning to update the Yampp firmware, so it will support the YADL disk layout that the Yampp firmware v 1.30 uses.

It would be really nice to be able to upload music to the player through the USB interface!

Hope you will have time to do that soon!     

Hi Dalailama!

The Cd emulator that Vitat made is not a MP3 player in itself. It only converts signals from the IP-bus standard used by pioneer to standard RS232 serial data that can be used to control a MP3 player. You need to build a MP3 player if you want any music out of it!
I recommend the Yampp3 or Yampp3/USB that you can read more about at: www.yampp.com

There is a few downsides to that though:
- If you want to use the emulator designed by Vitat, you cant use the USB interface on the MP3 (yampp) player. (not yet anyway...)
- The Yampp3 cant play songs with bitrates higher than 224 kbps.

You can find a scematic in this thread: http://www.vitat.spb.ru/forum/index.php/topic,121.0.html (down in the bottom)  It is made in Eagle layout. -And it works!!!

Hope it helps!

Here is a screenshot of the terminal communication.
The red brackets are the start and end of one song (approx 4 minutes).

How to get songtitle printed on screen? Now I only get Artist and Album printed.

Hi Vitat!

I have now reformatted a harddrive to FAT32.
It works when I test the Yampp with a terminal program!

Do you have a complete list of RS232 commands to control the player with?

I'd like to test all the functions before I build it into the car!

I am thinking about modifying the original Yampp3 software with YADL disk-structure so I can control it with the HU, and still have USB functionality.
How far are you with porting the current Yampp3/USB (ver. 1.30) firmware to be compatible with the CD emulator???

I'd really like that.

Thanks for a grrreat project!   

aahhh!!

That's why...

So i'll need to reformat the harddrive?
can I do that in the Yampp or do i have to connect it to at PC to format?

Will i be able to use YamppLink (USB connection to upload new music to the player) when it's not YADL formatted.

Yes. When i power up the player, the HDD spins up, initializes and spins down again (takes about 1-2 seconds).

in makefile, MCU is:
MCU = atmega161

in Constants.h it is:
#define YAMPP3USB

The clustersize seems to be set to 4k, But i am not sure.
In the original "yadl.h" file from the Yampp firmware v1.30 it is defined to:
#define YADL_CLUSTERSIZE          0x40000
I formatted the HDD with that firmware installed. The disk is formatted with YADL (Jesper and MIS's homemade HDD format).

Yes, the two RS232's are connected like you said:

It is like the Yampp itself doesn't recieve the commands from the emulator...

Thanks again Vitat...
I'm getting some sleep now. Will have a look at it tomorrow! 

Vitat, Thanks for all your help so far. I appreciate it!

Checked and recompiled both the Pioneer Yampp software and the CD emulator software. They should be fine now!

First i tried with LOG enabled. Got a lot of numbers on screen. (for more, see attached file: log_enabled.txt)

With LOG disabled i got this code: (see attached file: log_disabled.txt)

I figured out the prolem with the harddrive, just a small error.

The player still doesn't work. It doesn't react on any inputs from the HU.

Shit.. forgot to think about that...
i'll check it!

will try to hook it up like you said:

Will be back in an hour (approx 22:00 CET)

Tested it with HU connected now.     need some help   

Emulator software: IPbus_v4.4 -LOG enabled
Connection:  [HU]----<BUSP and BUSM>----[CD-emulator]----<RS232>----[PC-com port]

I get lots of data (numbers printed on screen on yaap terminal) from the CD-emulator. When i press different buttons i get lots of different data on the terminal. It seems to be working.

Emulator software: IPbus_v4.4 -LOG disabled
Yampp software: Yampp_pioneer_v2.2 -edited xtal value for VLSI chip.
Connection:  [HU]----<BUSP and BUSM>----[CD-emulator]----<RS232>----[Yampp3/USB with ATmega162 chip (in mega161 mode)]

It doesn't work when I connect the Yampp to the CD-emulator.
The harddisk keeps turning on and off, like the yampp gets bad signals or something. There's no sound from the yampp.

BUSP and BUSM change voltages between approx 0,85 V and 2,75 V in periods of about 2 seconds.  (dont have a scope to see signals with).
The cable i use for the BUSP and BUSM is a twisted pair cable, not shielded. It is approximately 35 cm long. Could the signal be distorded through the cable, or have i done something else wrong???

Is it needed to connect pin 3 on the IPbus connector on the back of the HU to GND, when I have connected pin 10 and 11 to GND??? 

Yay!!!   

I set the baud rate to 9600 and got a response on the terminal:
     

Just need to test it with HU!