ADPD1080 32MHz clock

I 'm working on the EVAL-AD1080Z-PRX  board

I could write and read back many registers' data but could not make the 32MHz clock running!

W 0x0001 to 0x01,   then R  0x0001

W 0x303A to 0x23,   then R  0x303A

W 0x0A20 to 0x30,   then R  0x0A20

W 0x0826 to 0x31,   then R  0x0826

W 0x5AFC to 0x39,   then R  0x5AFC

W 0x0001 to 0x5F,   then R  0x0001 : turning on the 32MHz clock

W 0x0020 to 0x50   then R  0x0020 : starting 32MHz clock calibration 

Then R 0x0A.  got  0x0000    --> no 32MHz running???

W 0x0000 to 0x5F,   then R  0x0000 : turning off the 32MHz clock

W 0x00E07 to 0x0B   then R  0x0Eo7 : sending outputs pulses to GPIO

W 0x0002 to 0x10,   then R  0x0002 : jumping to run mode

Then check GPIO0, GPIO1, and LED's circuit with my oscilloscope: No pulses detected ---> 32MHz clock was not running????

Are there mistakes in my Regs settings or any chances I got a bad Eval board. I did handle it very carefully to avoid any shorts, over voltage, and electrostatic discharges.

Thanks for every help and idea.