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Thread: Alpine AINet CRC solved

  1. #171
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    Mar 2010
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    Sorry for the long silence, I moving to the new flat and don't have enough time to work on the project.
    I still have few complete boards left somewhere deep in my garage, hope to get it back in about one month.

  2. #172
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    Quote Originally Posted by briinums View Post
    Hello Nik!
    Maybe you can help me out, my head will explode after googling and digging ai-net protocols in various languages etc.
    I want aux-in. I have an old TDA-7563 tape deck. it has no MUTE function and grounding pink wire didnt help me to get ainet/rca cable work.
    So I need to emulate CDC (or buy one). Currently I`m familiar only with Arduino board (i have one that i could use). Do you know if it would be possible to connect the arduino so that the Alpine HU thinks there is a CDC connected? then i would use the ai-net sound wires for mp3 player (ipod/iphone).
    1) how do i connect arduino to ainet? i see only one data bus on ai-net pinout. i guess its for transfers from HU to CDC. how is the data sent back from CDC to HU? on the same wire or other?
    2) what is correct baud rate and can i just send some simple serial data/byte so that HU thinks there is a CDC attached?
    I dont need no controls, just want the aux lines to work.. maybe i dont need that much hassle and could do some other simple/cheap mod to attach mp3 to HU? :/
    (HU: head unit, CDC: cd changer)
    Arduino board alone won't help because additional logic is needed to convert serial I/O to AiNet differential signaling. Check this document created by Colin: https://sites.google.com/site/projai...edirects=0&d=1
    1) AiNet have one differential data channel (two wires) which is used for all I/O
    2) I'm afraid that writing complete CD Changer emulation could be a difficult task. HU issuing lots of different requests to the changer which should be properly handled. If you not using tapes you could try tapping to internal analog out of the tape drive.

  3. #173
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    Mar 2010
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    One board has been shipped yesterday, three left.

    Hope to get H800 supported in next firmware.

  4. #174
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    Oct 2011
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    San Pedro, California, United States
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    I am current building car pc the mayor components i have in till the alpine MRA- D550 show up!! I have been looking at ai 10 project if is any one cant help...

  5. #175
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    Oct 2011
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    San Pedro, California, United States
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    sign me up !

  6. #176
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    Mar 2010
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    Hi Alex,
    I'm still here. What sort of help do you need?

  7. #177
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    Oct 2011
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    San Pedro, California, United States
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    I was hopping there is any ai-10 boards I have a project were I hope to use this as my controller for mra-b550 in conjunction with my car pc if is possible

  8. #178
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    Oct 2011
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    San Pedro, California, United States
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    hopping you have some of the boards for my car pc build ...

  9. #179
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    Quote Originally Posted by Alex B View Post
    I was hopping there is any ai-10 boards I have a project were I hope to use this as my controller for mra-b550 in conjunction with my car pc if is possible
    I have few boards left. PM me if you need one.
    Please note that I haven't tried it with mra-b550, only with MRA-F350. Don't think that there's considerable difference between them though.

  10. #180
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    Oct 2011
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    San Pedro, California, United States
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    Its worth a try will
    cant you control two mar-f350 of one board?

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