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interrupt doesn't generate -____-

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Sem van der Hoeven
2021-03-18 20:24:04 +01:00
parent 9f96c762fc
commit c7aefdc95d
5 changed files with 1294 additions and 1350 deletions
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5
Microcontrollers/ultrasonicSensor/main.c
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@@ -28,7 +28,7 @@ enum interrupt_status {INTERRUPT_FALLING, INTERRUPT_RISING};
static enum interrupt_status int_stat = INTERRUPT_RISING;
uint16_t timer_dist = 0; // time measured by timer;
uint16_t timer_dist = 125; // time measured by timer;
void wait_us(unsigned int us)
{
@@ -57,6 +57,7 @@ void ultrasonic_send_pulse()
ISR(INT0_vect)
{
timer_dist = 2009;
// if the interrupt was generated on a rising edge (start sending echo)
if (int_stat == INTERRUPT_RISING)
{
@@ -113,7 +114,7 @@ int main(void)
int distance = timer_dist * 340 / 2;
lcd_clear();
lcd_write_int(distance);
lcd_write_int(timer_dist);
wait_ms(1000);