Page 1 of 78 123456789101151 ... LastLast
Results 1 to 10 of 773

Thread: HU Quality AM/FM RDS/RBDS Radio with Features

  1. #1
    Raw Wave rando's Avatar
    Join Date
    Mar 2004
    Location
    Redondo Beach, CA
    Posts
    1,973
    Project FAQ

    This FAQ is updated with the latest project information. Please, do not ask questions that are already answered here. When new information becomes available, it will be included.

    There hasn't been an update to the FAQ in over <insert time frame here>. Is it up to date?
    See above

    What are the Goals of this project? What will this thing do?
    • A PC controlled AM/FM radio
    • Reception quality comparable to a car radio head unit
    • RDS/RBDS decoded data output
    • Control via USB or Serial or IC
    • 4 channel analog audio output (mirrored front/back pairs)
    • 2 stereo analog audio inputs
    • Powered straight from car OR PC regulated outputs (+5V, +12V)
    • Automotive antenna connector
    • IC auxiliary connector
    • Small physical foot print
    • Low power
    • Inexpensive
    • Integration with common CarPC front end software
    • Parts easily obtained or made available as kits
    • Open hardware and software design.

    When will this be available?
    This is a hobby project and is funded solely by its participants. We each have full-time jobs and families. There is no fixed schedule for completion. We cannot provide even an estimated release date.

    How does it work? Can I get a schematic? Can I get the source code? Can I get the layout in xyz format? What's left to be done?
    There are several potential solutions being worked right now. Below is the latest known information about each. Design and build information may be released when available and only after reasonable troll prevention has been implemented. If it's not in this FAQ then it's not available.

    SEE THIS POST FOR THE LATEST STATUS

    What bands will the radio tune?
    The project goal is an AM/FM radio that tunes over the ranges used globally. All designs currently in work use the same tuner module. Specific frequencies it can tune are here.

    How much will it cost?
    The final cost is unknown at this time but our target has always been the cheapest design possible -- while meeting the Project goals. If we can find the 'right' suppliers, it should be possible to sell kits at a price far below what it would cost to buy the individual components (if that's even possible).

    Should I start buying the parts now?
    Final testing of our solution(s) has not yet been completed. Also, a final BOM has not be released. It's possible (likely) things can/will change. Use that as your own guide to decide if you want to start buying stuff or not. My advice to you is to wait.

    Can I buy this assembled? Can I buy a kit? Can I do this myself?
    This is an open project and we hope to release enough information or materials to allow you to to build the radio yourself. Because some of the parts are difficult to obtain and require SMT soldering skills, we plan to offer partially assembled kits. Fully assembled boards may also be available.

    Can I preorder a kit now?
    No pre-orders are being accepted at thist time.

    Will this card plug into my motherboard?
    It's not an ISA or PCI card. It can be controlled via USB or an IC bus. If you have a USB or IC header on your motherboard then you may be able to squeeze this board inside your case.

    I read this board works from the parallel port. The parallel port is ghey. I want USB!
    The board will have USB and IC interfaces, not parallel. Initial prototyping boards will probably only have an IC interface since the on-board USB solution will be non-trivial. It's possible to implement an IC master controller over a standard PC serial or parallel interface. A USB->Serial dongle combined with a DS275 or MAX232 chip would be a good choice.

    Will this card output digital audio over USB?
    The board will provides line-level analog inputs and outputs. Digital audio is not planned at this time but could be added in the future if someone wants to tackle the hardware and software to support it. This is not a trivial undertaking.

    Other PC radios suck in the car. Reception wanders in and out and is otherwise horrendous. Will this one be better?
    Yes! That's the main project goal. If the current solution doesn't perform well, it will be scrapped for a new design.

    Why are you doing this? There are several inexpensive PC radios on the market.
    See the question above.

    What software will this work with?
    We have support from most of the front end developers here at mp3car.com to support this project. There's a chance a Radiator plug-in will be developed but be advised that Radiator CANNOT support AM or RDS. If you want to develop something for this, everything you need to know is in the data sheets for the parts shown in the schematic

    Will this be bus powered from USB?
    At this moment, the design requires an external 12V source. Full operation specifications will be provided once the design is stabalized and tested.

    Will I be able to hook this to my car's antenna?
    Yes, the board will have a standard Motorola antenna recepticle. Depending on your car, you may need an adapter.

    Will this board control my power antenna? I don't like it extended when I'm not listening to the radio.
    That's primarily a software issue and requires an interface between the PC and your antenna motor. This circuit may provide a low power signal to indicate when your antenna should go up. For many automotive antennas, this is all you'll need. Again though, the front end software will have to be designed to control this in the way you want

    Who is participating in this project?
    Essentially the entire MP3CAR community is participating by providing the feature and interface requirements. The members below are handling the day to day project managment, decision making, funding, engineering, and implementation.
    antimatter
    rando
    racemier
    Seth


    Can I help?
    We need people to assist in locating inexpensive suppliers for the parts and circuit board fabrication in the US and Europe. If you are that person, please PM Seth.

    I'd like to make a donation. Who should I send it to?
    Thank you but we have decided not to accept any payments or donations at this time.

    Where can I find information about the history of this project?
    This project was officially born 7/24/2004 -- that's the date of Seth's first post on the subject. For the historians among us, there are two previous threads on this topic. Please note that much of the contained information is now outdated.
    USB FM/AM tuner with RDS/RBDS
    HU Quality AM/FM RDS/RBDS Radio with Features

  2. #2
    Raw Wave rando's Avatar
    Join Date
    Mar 2004
    Location
    Redondo Beach, CA
    Posts
    1,973
    FAQ continued

    HQCT V1.0,2.0,3.0 (Formerly Designs A & B)
    All further discussion of HQCT can be found here
    Primary Contacts - racemier, Diogenes
    Microcontroller - Microchip PIC18F2455
    Tuner - Microtune 1384WFC3x0195
    Signal Processor & RDS demodulator - Philips TEF6892
    Signal Processor (Design A only)- ST TDA7400D
    RDS/RBDS demodulator & decoder (Design A only) - Philips SAA6588
    Schematic - not released
    Layout - not released
    BOM - not released
    Assembled prototype - here
    Status Summary
    • Design and build prototype: 100%
    • Electrical tests - power up/down cycles and other hardware tests: 100%
    • Write I&#178;C control code to support testing: 100%
    • Write firmware/drivers to control device from USB: 100%
    • API/SDK/Control libraries or Front-end Integration: 0%

    Test Results
    • FM reception test results : OK
    • AM reception test results : TBD
    • RDS/RBDS demodulation test results : OK
    • Audio I/O switching capability test results : OK
    • I&#178;C AUX port communication test results : OK
    • USB interface tests : OK

    Status Postings


    CRAM - Car Radio And Multifuction adapter (formerly Design C)
    Primary Contacts - rando, Seth
    Microcontroller - Microchip PIC18F2455
    Tuner - Microtune 1384WFC3x0195 (3x0194 for EM)
    Signal Processor & RDS demodulator - Philips TEF6892H/V2 (TEF6890H for EM)
    RDS Decoder - Microcontroller for EM
    Schematic - ALPHA .sch file
    Layout - Pre-ALPHA .brd file
    Firmware - Pre-ALPHA C18 source
    BOM - not released (yet)
    Assembled prototype - n/a

    Status Summary
    • Design/Build engineering model: 100%
    • Electrical tests - power up/down cycles and other hardware tests: 90%
    • Write I&#178;C control code to support testing: 100%
    • Design/Write firmware/drivers to control device from PC: 25%
    • Design/Write API/SDK/Control libraries: 35%
    • EMI testing per FCC B part 15 in qualified lab: 0%
    • Performance(Recpetion) tests: 75%
    • Design/Build production prototype: 30%

    Test Results
    • USB/Serial/I&#178;C interface tests : I&#178;C interface functional, I&#178;C shortgate functional
    • I&#178;C AUX port communication test results : Functional
    • AM reception test results : Not tested
    • FM reception test results : Functional
    • Audio I/O switching capability test results : Functional
    • RDS/RBDS decoding test results : Raw RDS clock/data functional

    Status Postings

  3. #3
    Neither darque nor pervert DarquePervert's Avatar
    Join Date
    Apr 2004
    Location
    Elsewhere
    Posts
    13,949
    Quote Originally Posted by RX-7
    Have you seen this?

    Maybe it is a good idea to go with PC/104 platform - it has ability to add this ultimate multimedia solution along with offering Serial / USB connectivity for another equipment as well, and all the software compatability usual PCs have...

    Tell me if I'm mistaken on this...
    Rando& Seth's project is going to be far more functional, though with RDS and AM capabilities. It can also connect to an external antenna for better reception.
    That AVR unit can do none of that.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  4. #4
    Maximum Bitrate Marsupial's Avatar
    Join Date
    Feb 2004
    Location
    Montreal
    Posts
    763
    to we have to pre-register in order to get one of the earliest DIY kits?

    ^_^
    -Mars

  5. #5
    Raw Wave rando's Avatar
    Join Date
    Mar 2004
    Location
    Redondo Beach, CA
    Posts
    1,973
    Quote Originally Posted by DarquePervert
    Rando& Seth's project is going to be far more functional, ...
    Just to make sure things are clear, Seth and Racemier are doing most of the heavy lifting on this project.

    Update: Who's doing what is now correctly reflected in the FAQ above.

  6. #6
    Raw Wave rando's Avatar
    Join Date
    Mar 2004
    Location
    Redondo Beach, CA
    Posts
    1,973
    Quote Originally Posted by Marsupial
    to we have to pre-register in order to get one of the earliest DIY kits?

    ^_^
    FAQ updated!

  7. #7
    Zac
    Zac is offline
    Constant Bitrate
    Join Date
    Feb 2004
    Location
    VA
    Posts
    192
    Do you plan to have the audio also comming in from USB?

  8. #8
    Raw Wave rando's Avatar
    Join Date
    Mar 2004
    Location
    Redondo Beach, CA
    Posts
    1,973
    Quote Originally Posted by ksmyarse
    Do you plan to have the audio also comming in from USB?
    FAQ updated.

  9. #9
    Variable Bitrate Batmanatthenewb's Avatar
    Join Date
    Sep 2003
    Location
    Newark, Ohio
    Posts
    309
    Nice post Rando. Definately easier to follow than the last two threads on this which grew way out of control.

    Batman
    Batman@TheNewBatcave.com
    AMD XP 2000, 1gig PC2700, 80gig 7200RPM HD, DVD CD/RW, ATI All in Wonder 8500DV w/remote, DataChute, IRDA, Wireless 802.11b, cell modem, Lilliput 7" VGA TS, XP Pro, GPS w/Routis
    www.samshomepage.net
    www.Cars-N-Computers.com

  10. #10
    Maximum Bitrate Seth's Avatar
    Join Date
    Jun 2004
    Location
    Athens Greece
    Posts
    836
    Quote Originally Posted by rando
    Just to make sure things are clear, Seth and Racemier are doing most of the heavy lifting on this project.
    Antimatter,Rando,Recemier,Seth....we're all guilty in the same degree...

    Rando's FAQ is official and it seems to clear things up in a succesfull way.

    A little update about our status is that the prototypes will delay for a week since recemier has some obligations to take care these days and I'm making preperations so that the device will be subjected to all the proper FCC Class B part 15 lab tests.


Page 1 of 78 123456789101151 ... LastLast

Similar Threads

  1. CarPC Remote control of FM Radio / Amplifier within Blaupunkt HU
    By ProCos in forum General Hardware Discussion
    Replies: 8
    Last Post: 05-28-2011, 09:56 AM
  2. 1/2 din AM/FM radio ????
    By spectrrr in forum General Hardware Discussion
    Replies: 10
    Last Post: 10-08-2005, 07:45 AM
  3. HU Quality AM/FM RDS/RBDS Radio with Features
    By Seth in forum Hardware Development
    Replies: 428
    Last Post: 01-20-2005, 09:59 AM
  4. Custom AM/FM radio display?
    By ShinkunoNamida in forum General Hardware Discussion
    Replies: 24
    Last Post: 02-25-2003, 07:28 PM
  5. AM/FM radio
    By ShinkunoNamida in forum General Hardware Discussion
    Replies: 14
    Last Post: 05-15-2002, 08:40 PM

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
  •