AnsweredAssumed Answered

AD9525 Communication Problem

Question asked by StevenK on Jan 22, 2016
Latest reply on Feb 3, 2016 by neilw

Hi, I have been working with an AD9525 which is connected in 4 wire SPI mode.

I am having trouble communicating with the device.  From what I understand I first need to set the SDO active bit in the SPI mode register.  So the SPI transaction would be 3 bytes or 0x00 -> 0x00 -> 0x81.  However after I complete this step, The SDO line never seems to become active during later read attempts.  Should this be all that there it to it? Or have I overlooked something.

Thanks in advance.