DAC71416: DAC out voltage

Part Number: DAC71416
Other Parts Discussed in Thread: MSP432P4111,

Hi,

   I'm currently working on DAC71416 interfacing with MSP432P4111 using SPI communication. I enclosed my schematic for verification and code below.

I'm getting the Device ID from DAC perfectly, But when i try to get the output voltage in any channel unable to get the required voltage. And also when checking the REF pin the internal reference voltage is not showing via REF pin in DAC. What could be the issue and i can use external reference but it is not my application. So help me to solve this issue.