EVAL-AD5676RARDZ Arduino interface using SPI P_MOD pins

Hey everyone,

I am new to Analog Eval boards and bought the EVAL-AD5676RARDZ to control 8 channels from the DAC. 

Since it has an Arduino Interface, can I just use it as a shield and attached it on top of a regular arduino? Or is it not compatible and Need the SDP-K1 board?

 

If not, I did solder some leads to the SPI_PMOD  and wired up the Arduino. 

I have pin PMOD_V connected to 3.3V

GND to arduino GND

SCLK to CLK of Arduino pin

SDIN to MOSI line of Arduino pin

and SYNCb to cs from arduino Pin 

I am having trouble sending out the 24 bits of data to the Chip.  I tried following the guide from https://wiki.analog.com/resources/eval/user-guides/dac/eval-ad5676r-ardz

and of course reading the datasheet. 

I Left all the jumper cables as default.

I am powering the P8 pins using the Arduino 5V. 

I am doing a simple command to the eval board.

 

My SPI settings are default. So I just used SPI.begin();

digitalwrite(slaveSelectPin,LOW);

spi.transfer(0x30); //this selects command 0011, and channel VOUT0

Spi.transfer(0xAA); //this is the first 8 bit of the 16 bit value

SPI.transfer(0xAA);  //second set of 8 bits of 16 value

digitalwrite(slaveSelectPin,High);

I chose 0xAAAA as the 16 bit value to easily read from Logic software

I am using the LOGIC Logic analyzer and my timing diagram is way off. 

Any help would be appreciated it.