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AD7147 Not responding

Question asked by Arunva on Nov 8, 2013
Latest reply on Jan 15, 2014 by maithil



I am trying to connect freescale(MC9S08QE128) with AD7147 by disconnecting the switches between ADuC and AD7147.


I am configuring the AD7147 as done in the ADuc sample code from the analog website and i am trying to read back the DEVID, but all i am getting is 255.


Please let me know, for the SPI communication, should the initial configuration required or SPI is configured during power up.


Also, I have compared the signals between the ADuC and AD7147, and i see its same.


But, the interrupt is not generated when configured from the external host.


Awaiting response.