Tool/software: Code Composer Studio
I use DSP28335 communication with PGA411 via SPI , sending data correctly, but without receiving any data.
（1）Reference example TIDA-00796-LIGHT , thePGA411 will reset after SPI configuration, I don't have reset PGA411, is this step necessary?
（2）The other problem is
"The NCS pin is kept low when sending a 32-bit command. One byte is loaded to the SPI shift registers
and then sent to the slave device, which occurs 4 times to maintain the 32-bit time frame."
Does it need a delay(200ns) between one byte and another byte?
(3) When I single step debug, as soon as the data is sent, the FAULT pin isHi-Z state. It means there is a fault.
Can you help me?