AnsweredAssumed Answered

I2C protocol for ADV7401

Question asked by KevinW on Mar 3, 2015
Latest reply on Mar 3, 2015 by DaveD

Hi,

 

I'm trying to communicate with ADV7401 chips in a design and I can't seem to get any acknowledgement from them.  I'm trying to use RealTerm and I can read from my other I2C devices no problem...  My design has two 7401s, one configured for 0x42 and the other for 0x40 via pull up/down resistors on the ALSB pin.

 

Does this chip require a special format for communicating?  I can't find anything helpful in the manual.

 

I noticed the ADV7181 needs a repeat start (https://ez.analog.com/message/68330#68330).  Is this standard for ADI devices?

 

Can someone recommend a better I2C utility?

 

Does ADI sell a programmer for their devices?

 

Thanks in advance.

 

Kevin

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