Hello,

I'm trying to control a voltage regulator via a Digital-Pot ("DP" hereunder, it's a DS1804-010 / 10k - 100 steps model).
<img src="http://home.citycable.ch/flotulopex/downloads/Adj-VR_Num-pot.jpg">
I replaced the 4k7 pot by the DP and nothing happens (= voltage doesn't vary). Just as if the DP wouldn't increment/decrement anymore.

The DP is working well as long as I don't connect it to the VR.

Any idea what's wrong here?