Chapter 7: Microcontroller Interrupts and Timers

rojects

/ Demonstrator.h Joystick version

define PINB_MASK ((1<<PINB4)|(1<<PINB6)|(1<<PINB7))
#define PINE_MASK ((1<<PINE2)|(1<<PINE3))

#de
#de

oid parseInput(char *);

oid joystick(void);

pen the Demonstrator.c and change it to:

P

Grab your joystick – and test your interrupts..........................................

Create a new directory Joystick and copy the PC_comm. and Demonstrator .c and
.h files from the PC_comm. directory.

In Programmers Notepad change Demonstrator.h to:

/

#include <avr/signal.h>
#include <inttypes.h>

#define KEY_UP 0
#define KEY_DOWN 1
#define KEY_LEFT 2
#define KEY_RIGHT 3
#define KEY_PUSH 4
#define KEY_INVALID 5

#define BUTTON_A 6 // UP
#define BUTTON_B 7 // DOWN
#define BUTTON_C 2 // LEFT
#define BUTTON_D 3 // RIGHT
#define BUTTON_O 4 // PUSH

fine TRUE 1

fine FALSE 0

// declare functions
void PinChangeInterrupt(void);
char getkey(void);

void initializer(void);
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