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'I2C problem. RTNM'
2006\05\23@012248 by Robert Rolf

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Jonathan Herr wrote:

> I can figure out how electrically wire up I2C devices easily, but the thing that I don't wholly understand, is the addressing of the slave devices.  I mean how do I know what address my certain device uses?  Is there something that i need to program beforehand or what?
>
> Any help/nudges in the proper direction(s) would be most helpful

You have to Read The Nice Manual (spec sheet) for the chip.
It will tell you what the default slave address is,
assuming that any address setting bits are at default.
Some devices, like I2C memories have a few 'address' pins that determine
which of several addresses the device will respond to.

Robert

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