MP3Car.com - View Single Post - Renault "Tuner List" Head Unit/CD changer hacking

pippolippi · 02-21-2006, 11:35 AM

Quote: Originally Posted by Vicne

Then it's absolutely logical that you don't see anything coming out of the HU.
I'd say start the HU, then try to send only "PLAYING" commands every second, with track=1 and both times at 00:00:01 and see if you get acknowledges in return.

I already tried that with no success. As I said, I think that the level of my usb serial adapter isn't enough for the HU, so I'll have to wait until someone design a good interface circuit, that is rs232 compliant on one side and gives 0-12V on the other.

02-21-2006, 11:35 AM	#157
pippolippi Constant Bitrate Join Date: Feb 2006 Posts: 113	Quote: Originally Posted by Vicne Then it's absolutely logical that you don't see anything coming out of the HU. I'd say start the HU, then try to send only "PLAYING" commands every second, with track=1 and both times at 00:00:01 and see if you get acknowledges in return. I already tried that with no success. As I said, I think that the level of my usb serial adapter isn't enough for the HU, so I'll have to wait until someone design a good interface circuit, that is rs232 compliant on one side and gives 0-12V on the other.