Page 49 of 81 FirstFirst ... 394041424344454647484950515253545556575859 ... LastLast
Results 481 to 490 of 801
Like Tree1Likes

Thread: Renault "Tuner List" Head Unit/CD changer hacking - Controls

  1. #481
    Variable Bitrate
    Join Date
    Apr 2005
    Location
    Belgium
    Posts
    326
    Quote Originally Posted by pippolippi
    I found that if I send 21 (15 hex) the HU displays 'HI TEMP' and stops sending commands to the cdc.
    I didn't realize, but the frame 15h is already referenced. It is sent during BOOT sequence with payload 00h 25h. Did you send a payload at all to get "HI TEMP" ?

  2. #482
    Ale
    Ale is offline
    Newbie
    Join Date
    Feb 2006
    Location
    Italy
    Posts
    42
    Quote Originally Posted by Vicne
    Great !
    Maybe that's not the first emulator as Peppuz seems to have had some success already (see here) - not counting the Connects2 guys :-) - but that's really encouraging.

    .....

    Yes, please do. You're still definitely on the contest to be the first to publish your PIC-based emulator how-to :-)
    And anyway, like for the PC-based emulator, I think that for now, the more versions we have the better.
    Keep on the good work.
    Here is the first beta release. I have corrected the link error but Track number is still blank. So isn't the final release. Just for take a look this is a complete project developed with free MPLAB-IDE and the The CC5X compiler. And the free PIC programmer WINPIC. Next i will post the simple schematic that use max232 and an open collector transistor for TXd output to HU.
    Attached Files Attached Files

  3. #483
    Ale
    Ale is offline
    Newbie
    Join Date
    Feb 2006
    Location
    Italy
    Posts
    42
    Here my schematic for both programming PIC and test with PC or HU.
    Attached Images Attached Images  

  4. #484
    Ale
    Ale is offline
    Newbie
    Join Date
    Feb 2006
    Location
    Italy
    Posts
    42
    Here my schematic for both programming PIC and test with PC or HU.

  5. #485
    Constant Bitrate
    Join Date
    Feb 2006
    Posts
    113
    Quote Originally Posted by Vicne
    I didn't realize, but the frame 15h is already referenced. It is sent during BOOT sequence with payload 00h 25h. Did you send a payload at all to get "HI TEMP" ?
    Nope, the 15h alone.

  6. #486
    Newbie
    Join Date
    Feb 2006
    Posts
    28
    Quote Originally Posted by Ale
    Here is the first beta release. I have corrected the link error but Track number is still blank. So isn't the final release. Just for take a look this is a complete project developed with free MPLAB-IDE and the The CC5X compiler. And the free PIC programmer WINPIC. Next i will post the simple schematic that use max232 and an open collector transistor for TXd output to HU.
    Hi Ale,
    I'm looking the code and seems ok , the solution it's very simple to build and code are very clear and I like to wish you my great and best compliments.

    When I will found some momemt of free time I try to check your code with my interface (with 16F877A) without max232 between RC5 and 13HU Pin.

    again congratulations...
    pep

    p.s. how you can think to manage the features like NEXT,PREV ecc.ecc..?some switch in a pic?

  7. #487
    Variable Bitrate
    Join Date
    Apr 2005
    Location
    Belgium
    Posts
    326
    Quote Originally Posted by Ale
    Here my schematic for both programming PIC and test with PC or HU.
    Hey, this looks really simple. I thought the circuit would have been much more complicated !
    I have corrected the link error but Track number is still blank.
    Track number is blank ?
    That's weird. Are you sending "PLAYING" frames once per second ?
    Just for take a look this is a complete project developed with free MPLAB-IDE and the The CC5X compiler. And the free PIC programmer WINPIC.
    Hey, this is really interesting. I had left PICs and microcontrollers more than 10 years ago but it's interesting to see how versatile those chips are, with parallel port programming and such... I might use one in the future too :-)

  8. #488
    Constant Bitrate
    Join Date
    Feb 2006
    Posts
    113
    Quote Originally Posted by Vicne
    Track number is blank ?
    If you send a number that's not valid bcd it will show a blank instead of the track number.

  9. #489
    Variable Bitrate
    Join Date
    Apr 2005
    Location
    Belgium
    Posts
    326

    Weird problem

    First, I wanted to confirm it made a huge progress to implement "interruptible track changes" (that is, for each track change request I receive, I immediately reply with only the first 27h frame of the track change sequence, and only after the user has finished playing with the thumbwheel for a 100ms timeout, I send the rest of the sequence (21h/21h/27h). Not a single HU_OFF anymore, and display follows the wheel movements much faster, without any annoying unmute/mute.

    Well, second, not that I think anyone can do anything about it (except me), but I wanted to share my disappointment of yesterday :
    I made a trip to Paris with the emulator and all worked well for about 1h30, then I began all of a sudden to have sound completely stopping (I had to pause/resume to re-activate SPDIF) once, twice, and then up to point where I could only hear two seconds of music before it stopped. On the next parking, I restarted the HU, restarted the PC, restarted the emulator... to no avail : every few seconds, the console says the HU has turned off (which is the sign of unacknowledged messages), and it is intermittent. I unplugged the adapter thinking maybe there was something overheating, but on the trip back, the problem occurred immediately though everything was cold.
    The good news is that once the adapter is unplugged or emulator stopped, the actual CDC works perfectly, so it looks like the HU is not the culprit (and not damaged).
    So my guess for now is a bad contact somewhere on my circuit and I'm going to have to track it down, which will be a real pain I guess (all cabling, circuits and HU are back in place). And to make things worse the problem is intermittent : If it's a bad contact, it might as well work again perfectly after I take the HU and PC out... :-(
    The other possibility could be that a part has overheated and is now damaged.
    Finally, it could also be that the mobo's serial port is damaged, but I don't think it's the case...
    Where do you think I have to start ?

    I really thought I could now concentrate on software only, but it seems I'm a bit out of luck...

  10. #490
    Variable Bitrate
    Join Date
    Apr 2005
    Location
    Belgium
    Posts
    326
    Quote Originally Posted by pippolippi
    If you send a number that's not valid bcd it will show a blank instead of the track number.
    That could be an interesting way to indicate we're over 99 : currently, when the track position in winamp is over 99, I let the track# at 99, but it could be more logical to make it go blank...

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •