On the CD This appendix contains a brief introduction to the HI-TECH PICC-18 C compiler demo that is found in the hitech subdirectory on this book's companion CD-ROM. The PICC-18 C compiler is enabled for 120 days after installation and only produces code for the 18F242. The executable found in the hitech subdirectory is self-installing; MPLAB should be installed before installing the PICC-18 compiler. Some compiler options are disabled in this demo compiler. These options are:

• -D to predefine macro symbols

• -L to specify libraries to be scanned by the linker

• -L-opt to allow specification of additional linker options

• -O-opt to allow specification of additional OBJTOHEX options

• -M map file generation

• -NORT to disable runtime code inclusion

• -PRE to only preprocess source files

• -RESRAM to reserve RAM ranges

• -RESROM to reserve ROM ranges

• -U to undefine macro symbols

• -V for verbose compilation messages

In practice, the only effect of the demo limitations on the C programs included in this book is the lack of printf support for floats and longs, due to the omission of the -L compiler flag. Only a few book examples use printf statements with float/long data types for program output, and the lack of support does not affect the overall program functionality.

During installation of the PICC-18 demo compiler, you will be asked if you want to install the MPLAB 6 PICC-18 Toolsuite Plugin. You should answer "yes" to this question, as this allows you to build...