+This demo shows how to use the \emph{Board Init} block to initialize
+SPI devices on the Hydraulics Controller board. Additionally, it shows
+how to use unused SPI pins on the MCU as general-purpose IOs. If both
+Board Init and GIO SPI blocks are used together, care must be taken
+about the order in which the blocks are initialized. GIO blocks that
+represent SPI pins must be initialized \emph{after} the Board Init
+block. This can be ensured by giving the GIO blocks higher priority
+than the Board Init block.