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CM8880/MT8880 transceiver — Parallax Forums

CM8880/MT8880 transceiver

shufinihoshufiniho Posts: 4
edited 2009-09-06 02:18 in General Discussion
Hello everyone and sorry for my english.

I don't know how to interface CM8880 with a PIC16F84A ? I don't understand parallax dialect from CM8880 pdf and I don't know how to 'translate' it in MPASM dialect. I hope someone can help me [noparse]:)[/noparse]

Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2009-09-02 16:50
    This is a support forum for Parallax products and, although you found an old Parallax document that included some code examples of the use of a CM8880 with a PIC processor, Parallax doesn't support that. If you wait long enough, you may get an answer from someone who's familiar with MPASM, but you'll do much better asking at the Microchip support forums since the PIC is their product and your question is really about the PIC and their MPASM.
  • shufinihoshufiniho Posts: 4
    edited 2009-09-03 10:20
    Ok. Then can you tell me from where to donwload a program or a compiler in wich I could write the code from that pdf above and convert it to hex? Please, I really need help.
  • Mike GreenMike Green Posts: 23,101
    edited 2009-09-03 13:45
    The explanation on pages 2 and 3 of the document is pretty complete and pretty simple to implement for almost any microcontroller. The comments in the code are also pretty thorough.

    It should be straightforward to translate the dialect that Parallax used to MPASM (or whatever you're using). You're just going to have to do the work.
  • shufinihoshufiniho Posts: 4
    edited 2009-09-03 14:03
    I wrote a code but I am not sure if it is good. I just need someone to tell me if it is goog or not, because I am a beginner.The code in MPASM dialect is in the atached document. The schematic diagram for my project > i27.tinypic.com/veprae.jpg
    P.S. : I downloaded SX-Key Editor V3.3 and I can't write code for pic16c54 like in the CM8880 document. What editor do I need for writing the code form the pdf documnet as it is?
    ASM
    ASM
    DTMF.ASM
    4K
  • FranklinFranklin Posts: 4,747
    edited 2009-09-03 15:34
    http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=64

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    - Stephen
  • shufinihoshufiniho Posts: 4
    edited 2009-09-04 21:02
    MT8880 is produced by parallax too! It is your responsibility to give us an exemple aout how to software interface with a PIC microcontroller. And what is your problem with Microchip anyway?
  • Mike GreenMike Green Posts: 23,101
    edited 2009-09-04 21:29
    I don't have any problem with Microchip. I've used their microcontrollers and Parallax uses them to make their BS1 and BS2 Stamps, but neither sells the PICs themselves nor supports their use. The BS1 and BS2 are programmed only in a proprietary interpreted version of Basic which Parallax heavily supports. Both the CM8880 and MT8880 were manufactured by other companies (Mitel and California Micro Devices) and are both considered obsolete.

    Parallax does support what it sells. It hasn't sold the CM8880 for many years and, as far as I know, has never sold PICs except as part of their Stamps.

    Post Edited (Mike Green) : 9/4/2009 9:35:14 PM GMT
  • FranklinFranklin Posts: 4,747
    edited 2009-09-06 02:18
    The document you referenced is over nine years old and does contain pic code. Try finding a pic based forum that may be able to convert the code to a more current version.

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    - Stephen
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