A change made to nextFrame(), from the Arduboy library, caused it to not work
correctly. The original version works as designed.
Also:
- Changed longs to unsigned longs for better type matching.
- Removed the frameRate variable. It was being set but never used.
- Added a missing return value to the write() function.
- Changed a int8_t to uint8_t in function lcdCommandMode() to address a
compiler warning.
- Rearranged the specification of the font[] array to address a compiler
warning.
paintScreen() used instruction padding for a delay to allow a byte to be sent
to the display using SPI. This delay became to short with the new gcc version
in Arduino IDE 1.6.10
The function has been changed to test for the serial transfer to complete
before sending the next byte.
Scott Allen