B U F F E R R E S E T

B U F F E R R E A D Read one chunk in the user buffer. Assume there is always something in the bufferpace. See dataAvailable()

B U F F E R W R I T E Write one chunk (32 bytes) to SPI RAM. No check on available space. See spaceAvailable().

D A T A A V A I L A B L E Returns the number of chunks available in the buffer.

G E T F R E E B U F F E R S P A C E Return the free buffer space in chunks.

S P A C E A V A I L A B L E Returns true if bufferspace is available.

S P I R A M S E T U P