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AD7357 showing all samples as 1 (SPI receive reg is FFFF)

Question asked by KPAN on Jan 31, 2013
Latest reply on Jan 31, 2013 by Prashant

I am interfacing AD7357 with ADSPBF548

SPI is configured on DMA for receive (MISO), BF548 is the master

I can see the clock on the SCK line for 16 bits with 1 cycle space in between

Data is showing continously high. All 1s in SPI receive register of BF548, also on CRO it is showing 3.3V all the time.

What cab the reason for the same???