I am using both the SPI interfaces. One is for writing to a serial DAC and another is for interprocessor communications.
I have the DAC SPI interface running fine, however, I cannot get the other one to work.
I mimic the status and control register, the data size and the interrupt (respective) registers. I have stopped the unit and looked at the registers (the 4 for the SPI interface and the two IPRs) and they are exactly the same. I know I am getting to the code I need to get to through breakpoints. I access the units in the same exact way. Yet, only one works, and I have tried two different boards.
I just don't get it.
Any ideas? Is there something about the SPI interface that I am missing? Or, I guess, that I got right on one and forgot about on the other?
