Part 3: C Types, Operators, and Expressions

摘要

Last month, we wrote our first C Program: CylonEyes.c, built the CylonEyes hardware, and watched the LED light zip back and forth. This month, we will look at AVR port input and output. And we will add an eight-bit DIP switch to our learning platform. Remember in Workshop 1 where I compared learning C and AVRs to walking across two continents and said I'd give you some warnings? Well, prepare to have a branch smack you in the face. This workshop has some very tedious facts in it. Sorry, but it can't all be fun and games and you have to climb a high wall in order to get to the fun stuff. As Randy Pausch said in the 'Last Lecture' "... brick walls are there for a reason.