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Interfacing AD7768 adc to Zed board

Question asked by madhan on Jun 1, 2016
Latest reply on Jul 6, 2017 by DragosB

Hi all,

 

1)As i am trying to interface the AD7768EVAL board through FMC to Zed board, when i am trying to read the value of a specific register through SPI lines always i am getting zeros in return. I am using Xilinx ISE 14.7, SPI initialization, read and writes are done in SDK according to the format mentioned in datasheet(R/W,7 address bits, 8 data bits).

 

2)After powering the AD7768EVAL and Zed board, when i am trying to observe the DCLK, DOUT(0 to 7) in chipscope always they are zeros.( I verified the pin constrains used in the design with respect to schematics of AD7768eval and Zed they are perfect)

Can anyone suggest Whether i am missing any initial configuration steps ?

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