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[EDIT] change interrupt 0 to 2 to be able to use led matrices

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Sem van der Hoeven
2021-03-31 12:20:25 +02:00
parent 83863ec5f5
commit a448a04a64
24 changed files with 1528 additions and 205 deletions
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8
Microcontrollers/Eindopdracht/ultrasonic_sensor.c
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@@ -40,9 +40,9 @@ void ultrasonic_init()
DDRG = 0xFF; // port g all output. pin 0 is trig, the rest is for debug
DDRD = 0x00; // port D pin 0 on input. 0 is echo and also interrupt
EICRA = 0x03; // interrupt PORTD on pin 0, rising edge
EICRA = 0x30; // interrupt PORTD on pin 2, rising edge
EIMSK |= 0x01; // enable interrupt on pin 0 (INT0)
EIMSK |= 0x04; // enable interrupt on pin 2 (INT2)
TCCR1A = 0b00000000; // initialize timer1, prescaler=256
TCCR1B = 0b00001100; // CTC compare A, RUN
@@ -63,7 +63,7 @@ void ultrasonic_handle_interrupt()
if (int_stat == INTERRUPT_RISING)
{
// set interrupt pin 0 on PORTD to falling edge
EICRA = 0x02;
EICRA = 0x20;
// reset the time in timer1
TCNT1 = 0x00;
@@ -74,7 +74,7 @@ void ultrasonic_handle_interrupt()
// else if it was generated on a falling edge (end sending echo)
{
// set interrupt pin 0 on PORTD to rising edge
EICRA = 0x03;
EICRA = 0x30; // interrupt PORTD on pin 2, rising edge
// read timer1 into time_dist
timer_dist = TCNT1;