pub type Error = Error;
Passthrough for SPI errors (for now)
enum Error { Framing, Crc, ModeFault, Overrun, RxDma, TxDma, }
Frame format error
CRC check error
NSS mode fault
FIFO overrun
RX DMA error
This can only occur on SPI transfers that use the RX DMA.
TX DMA error
This can only occur on SPI transfers that use the TX DMA.