Multiple PIC talking to same I2C device


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  1. #5
    Join Date
    May 2006
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    Del Rio, TX, USA
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    Thumbs up I2C-Bus can be a Multi-Master bus

    The 18F MSSP has a "Multi-Master" mode for the I2C bus. I've never used it, only know about it from the 18F4620 datasheet and spending a lot of time reading the Phillips I2C Bus Spec Sheet a while back.

    It might be worth doing some study. I could be easier to implement than we first realize, especially with 2 PIC in the same basic family (18F).

    HTH,
    Steve

    EDIT: Here is a new link for I2C Specifications. There is a link to a new .pdf file for the bus specs.
    Last edited by SteveB; - 7th October 2007 at 06:42. Reason: Added New Link

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