The AD's spi timing required is as figure, the first 3 bytes a command sent by TMS320F28335, after AD receive the command, it send 2 bytes data to 28335,
I set SPIA FIFO level to 5 bytes(the first 3 bytes are command, the last 2 bytes are dummy write)
I check the sent 5-bytes from 28335 on the oscilloscope(view line SPI MOSI), it is right. but no bits appears on the line SOMI, would someone help me? it puzzled me a few days
