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ADV7181C I2C Doesn't work

Question asked by MotusLab on Apr 22, 2013
Latest reply on Apr 22, 2013 by GuenterL

Hello,

 

I'm working on a new board with ADC7181C, but i'm not able to communicate via I2C.

So, I have checked everything around the chip:

- chip orientation

- pull-up resistors value on I2C lines

- CAD implementation

- supplies values and stability

- the reset pin is held low during power up sequence

- no I2C access after the reset pin is released

 

 

My doubt is there is any power sequence that must be implemented?

 

Thank you for any help

 

Claudio

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