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Daughter board was not detected when using SDP-S

I'm trying to build a SPI configuration circuit board for ADF4351 using SDP-S. The SDP-S board is connected to my PLL board through the specified 120-pin connector. I have connected CLK, DATA, LE and MUXOUT of ADF4351 to SPI_CLK(82), SPI_MOSI(84), SPI_SEL_A(85) and SPI_MISO(83) of the controller board respectively.

But I got a message of 'An SDP system was found, but the daughter board was not detected. Check the daughter board is attached to a compatible SDP and press Rescan or Cancel to abort'. I don't kown why it didn't work, what are the necessary conditions for the daughter board can be detected?