Other Parts Discussed in Thread: AFE4490,
Hi,
I tried to communicate with the AFE4490 directly through the SPI interface by accessing the R29, R31, R33, and R35 on the evaluation board (AFE4490SPO2EVM).
I use FTDI MPSSE cable to produce the SPI signals. I can see the SPI signals (clock, chip select and MOSI) using oscilloscope, and they match with the intended signals.
But I don't receive any response from AFE4490. In other words, the MISO is always 0.
How can I make sure the AFE4490 is still working or find out why it doesn't send the response back?
