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AD5274 I2C controlable potentiometer programming issue

Question asked by electron-be on Dec 7, 2012
Latest reply on Dec 10, 2012 by musach

Hey to you all,

 

I have a stupid problem, like problems mostly are.

 

I use a AD5274, it is a I2C controllable potentiometer, you can set the potentiometer value by sending a 8 bit value towards its RDAC register, and when it is fine for you, you can give a command to store this RDAC value into memory. After a power cycle the last programmed RDAC value will be used to configure the wiper position.

 

All works fine until now. I can configure and even program I get ACK from the device but after doing a power cycle to last programmed value isn't coming back. I checked everything but can not find a reason why it wont do what it should be. Does anyone have experience whit this device?

Thanks in advance.

 

Peter

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