Hello,
Are there any "usable" examples that illustrate the usage
of amforth with microcontrollerspecific tasks?
just to get a glimpse on it a simple timerbased port high/low thingy woul=
d
be nice.
i could not find that usefull examples on the projects webpage.
only fragments.
would amforth be usable for things like the example on the bottom
of this email too?
(a simple servocontroller utilizing 2 timers and powermanagement.
atmega16@16Mhz)
btw.
id like to use amforth to build a reconfigurable scheduler with an
external rtc as timekeeper.
thanks
gerald
static void io_init(void)
{
PORTA =3D 0x0;
DDRA =3D 0x0;
PORTB =3D 0x0;
DDRB =3D 0xff;
PORTC =3D 0x0;
DDRC =3D 0x0;
PORTD =3D 0x0;
DDRD =3D 0x0;
ACSR =3D 0x80;
}
void timers_init(void)
{
//timer0
OCR0 =3D 160;
TCNT0 =3D 96;
SET_BIT(TCCR0,CS00);
SET_BIT(TIMSK,TOIE0); // timer0 overflow als interruptquelle
SET_BIT(TCCR0,WGM00); //fast PWM
SET_BIT(TCCR0,WGM01);
//timer1
OCR1A =3D 50000;
OCR1B =3D 50000;
TCNT1 =3D 60550;
TCCR1A =3D 0x00;
TCCR1B =3D 0x02;
//timer1 -prescaler
SET_BIT(TCCR1B,CS10);
SET_BIT(TIMSK,TOIE1); // time1 overflow als interruptquelle
}
SIGNAL(SIG_OUTPUT_COMPARE0)
{
static unsigned int counter;
PORTB =3D 0xff;
counter++;
if (counter >=3D 130)
{ PORTB =3D 0x00;
CLEAR_BIT(TIMSK,OCIE0);
TCNT1 =3D 60550;
SET_BIT(TIMSK,TOIE1);
counter =3D 0;
}
}
SIGNAL(SIG_OVERFLOW1)
{
cli();
CLEAR_BIT(TIMSK,TOIE1);
SET_BIT(TIMSK,OCIE0);
sei();
}
int main(void)
{
io_init();
timers_init();
sei();
set_sleep_mode(SLEEP_MODE_IDLE);
while(1)
{
sleep_mode();
}
}
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