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ADN4605 - External Update pin doesn't operate as specified

Question asked by FreddyS on Dec 16, 2014
Latest reply on Jan 13, 2015 by jmarshma

Dear Supporter

 

We have an issue with ADN4605 data transfer control using the external pin DATA1/*UPDATE  :

 

According the user manual

 

The ADN4605 works OK when we update the second rank registers by writing to register 0x01.

  But when we try to use the external pin Update it doesn't  work.

 

We use the UPDATE external pin on DATA1/*UPDATE IO (we use SPI interface). 

SPI Mode (SER/PAR = 1, I2C/ SPI= 0) during the external pin update operation

 

 

 

Any suggestion?

Thanks

Freddy

 

 

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