WOO HOO, problem solved !!!
In addition to the internal parasite capacitor build into the DS2450 chip, AAG included a float capacitor on the pc board for chips with vcc or bat connections.  Therefore this chip is dual powered.  Setting the externally powered option in owhttpd brought the a2d conversions to life.   Thank you for pointing me in the right direction.

Ross

On Oct 17, 2005, at 9:22 AM, Christian Magnusson wrote:

My guess is that you haven't connected the Vcc pin to anything,

neither to +5V or to your ground. The ds2450 device is not sure in which

mode it's used in.  Is that correct?

Could you try to connect the Vcc pin to +5V?


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