02-28-2006, 09:40 AM
I was confused
Originally Posted by Vicne
02-28-2006, 10:44 AM
No problem. We probably all need some sleep :-)
Originally Posted by pippolippi
Well, if you have components to build a circuit similar to mine, I'd advise that you do that first as it's now known to work. That would confirm :
- that you didn't fry your HU
- that your software is working
- that the pinout and wiring are correct
Then why not go the "10K" way for Rx, and if it's still ok, fiddle with the Tx to see if you can make something simpler/cheaper/smaller...
For my part, I'll work on the software to improve the finite state machine and mimic the CDC's bootup sequence.
02-28-2006, 11:41 AM
02-28-2006, 12:40 PM
As I said, I have found (and tested) two ways of getting one :
Originally Posted by slimmegane
- full Blaupunkt extender (useful for me to get both M and F plugs) for 16 EUR in a car audio store (Blaupunkt ref 7 607 621 154).
- eBay : The female connector (+ contacts) costs 5 EUR (+4 EUR S/H for Belgium) at http://stores.ebay.de/ADAPTERSHOP (search on "blau"). Others sell it under the name "mini-iso" but some don't include the contacts.
02-28-2006, 02:27 PM
My car is a Renault Clio 1.4 8V (October 1999) and I have a Renault radio cassette player (Philips) with these connections
I bought a radio cd player (model DC 278/62B) with these connections
I tried to connect the cd player but I couldn’t connect the screen connector from my car to new radio cd
Does anyone know if I can connect the cd player to my car, and how ?
02-28-2006, 02:46 PM
I guess this is off topic, so you might get better advice on a Renault specific forum, but well...
Originally Posted by nisianp
If by "connect the cd player to the car", you mean the power and speakers connectors, I think, yes. But regarding the display (yellow connector), no idea... And no idea if it's absolutely needed or optional.
Try maybe on http://forum.planeterenault.com [fr], http://www.renault-board.de [de], http://www.renaultforum.nl/Forum/ [nl], http://citroenpicasso.org.uk/renault/ [uk]... and I guess there's a greek equivalent but I don't speak the language :-) :-(
02-28-2006, 02:55 PM
It's also available at conrad.com (article number 378650 - 62) but if you don't live in germany (I don't) shipping costs are huge (15-30€ depending on country)
Edit: I mean the blue connector
Edit2: and the minimum order is 50€
02-28-2006, 03:52 PM
Slimmegane, in italy phonocar has this connector in its catalogue: go to http://www.phonocar.it/prodotti.html select "accessori", "cavi", "connettori per autoradio". Then you have to find a phonocar dealer.
Originally Posted by slimmegane
I suspect it will be cheaper to buy from ebay
02-28-2006, 05:27 PM
02-28-2006, 08:52 PM
Y E S
Well, it works !
I knew software was easier than hardware :-)
Like for the hardware part, maybe I'm using a hammer to kill flies, but what I did was completely mimic the startup sequence of the original CD changer :
- send BOOTING frames, retrying each one 3 times until I get an Ack, and if I don't receive one, increment the ID and try again 3 times one second later, etc until 10 successive IDs have been tried, then go back to ID=0 and start again.
- once I get an acknowledge, send the RANDOM_STATUS, then the TRAY_STATUS, then the RANDOM_STATUS again and switch to STANDBY mode (1 STANDBY frame every second)
- when I receive a SELECTED_CDC (which I renamed REQ_CD_INFO), reply with fake CD information (10 tracks, 60:00:00 TRT)
- when I receive a START_PLAY, switch to PLAYING state (1 PLAYING frame every second)
All this is in a finite state machine but I'm still not very satisfied of the architecture...
Like for the 10K resistor, maybe we'll soon see that sending only PLAYING frames is sufficient, but for now I prefer having a strong architecture ready to simulate every situation.
Currently, I can start the application, then as soon as I turn the HU on, it accepts to switch to CD Changer position without the actual CD changer being attached, and it displays TR1 CD1.
I'll go further soon, but I really need some sleep :-)
Updated source code is attached, and here's a picture showing the TR1 CD1 display with the original CDC unplugged :-)