On Saturday 18 January 2003 10:24 am, you wrote:
> That sounds like its reading the data line floating high.  Are you really
> sure the slave is responding with ACK?

I hooked up the oscope and found that the slave is ACKing and the master is
ending with NACK.  It looks fine, but the DS1621 is sending all 0's as it's 2
data bytes.

> Look at the address byte and the ACK on the scope.  My gut feel is that
> the slave doesn't think it got addressed and therefore never drives SDA.
> Of course the master should have seen the NACK.  Are you checking for this
> properly?
>
> > I've been at it for about 4 hours now and am getting tired
> > of it.
>
> Not our problem.

I never said it was.  Thanks for the reply, though.


Barry

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