Chapter 7: Microcontroller Interrupts and Timers
// parse first character'm')&&(s[3]=='o')&&(s[4]=='?') )n't understand.\r");pt(void)key;ns |= (~PINE) & PINE_MASK;switch (s[0])
{
case 'j':
if( (s[1] == 'o') && (s[2] == 'y'))
joystick();
break;
case 'd':
if((s[1]=='e')&&(s[2]==
sendString("You are talking to the JoyStick
demo.\r");
break;
default:
sendString("\rYou sent: '");
sendChar(s[0]);
sendString("' - I do
break;
}
s[0] = '\0';
}
void joystick()
{
if(ENABLED == 0) ENABLED = 1;
else ENABLED = 0;
}
SIGNAL(SIG_PIN_CHANGE0)
{
PinChangeInterrupt();
}
SIGNAL(SIG_PIN_CHANGE1)
{
PinChangeInterrupt();
}
void PinChangeInterru
{
char buttons;
char
buttons = (~PINB) & PINB_MASK;
butto