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ADS8688EVM-PDK: Data is not coming in SDO pin

Part Number: ADS8688EVM-PDK
Other Parts Discussed in Thread: ADS8688

Hi All,

We are using ADS8688 EVK Kit. Replaced TI Controller with our own controller and configure like below. We are seeing any data. Timing parameters and SPI Mode are followed as per data sheet. 

1. Sent Reset program registers
SDI - 8500h (First 16 cycles)

2. Update Program Registers Auto Enable
Reg Address 01h (7 bit)
WR - 1 (1 bit)
Data - FFh (8 bit)

SDI - 03FFh
SDO - FFFFh (Last 16 cycles)
3. Send Auto Ch. Sequence with Reset cmd
SDI - A000h (First 16 cycles)

SDO - FFFFh (Last 16 cycles)

4 Send Continued Operation (NO_OP) cmd in loop

SDI - 0000h (First 16 cycles)

SDO - FFFFh (Last 16 cycles)

Please let me know if you are missing anything.