SPIX example using the MX25

Uses the MX25 on the EvKit to show the SPIX functionality. Erases, writes, and
then verifies the data. MX25_BAUD, MX25_ADDR, and MX25_SPIM_WIDTH can be
changed to alter the communication between the devices. Refer to the schematic
for the pinout and ensure that there are no switches blocking the communication
to the MX25.

Example functionality:
 - Erases, writes program data and verifies the data written to the MX25 External Memory

 - Executes the written program data

 - Sends status updates via serial
