This directory contains a number of test applications contained in
their own sub-directories. Each application has a numerical suffix.
As a rule, the larger the number the more difficult the program.
Within each sub-directory are two makefiles; one called Makefile and
the other called Makefile.test. By default when make is run it will
read Makefile.
make --- builds the application for the ATmega8
make program --- programs the application into the ATmega8 flash memory
make clean --- deletes the object and executable files
The other makefile, Makefile.test, will compile the application
natively for the PC with a test scaffold replacing the AVR dependent
modules. This allows the application to be run and debugged on a PC.
make -f Makefile.test --- builds the application for the PC
make -f Makefile.test clean --- deletes the object and executable files
tone1 Play a continuous tone (if piezo tweeter connected)
tone2 Play a louder continuous tone (if piezo tweeter connected) by driving
PIO pins in anti-phase
