16F630 and MCP3221 I2C

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  1. - 18th August 2005, 09:26 #2
    Darrel Taylor's Avatar
    Darrel Taylor
    Darrel Taylor is offline Fanatical Contributor
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    badcock,

    The datasheet for the MCP3221 is a bit ambiguous. While the graphic in figure 5-2 shows the device code as 1001. The text in section 5.2 says that it's 1010.

    I've never used that part before, so I don't know which one it really is, but you might try ...

    cont con %10101010

    Also, the first byte sent (B1) is the highbyte. So the A/D value will have to be greater than 1280 (1.56V) to satisfy the B1 > 2 condition.

    And, don't forget the pull-up resistors on SDA and SCL.<br><br>
    Last edited by Darrel Taylor; - 18th August 2005 at 09:40.
    DT
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