diff options
Diffstat (limited to 'spaghetti-monster/fsm-pcint.c')
| -rw-r--r-- | spaghetti-monster/fsm-pcint.c | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/spaghetti-monster/fsm-pcint.c b/spaghetti-monster/fsm-pcint.c index 4928980..1ba1c15 100644 --- a/spaghetti-monster/fsm-pcint.c +++ b/spaghetti-monster/fsm-pcint.c @@ -24,19 +24,9 @@ #include <util/delay_basic.h> uint8_t button_is_pressed() { - // remember the past 32 measurements - static uint32_t readings = 0; - // take at least one new measurement, - // and wait for measurements to settle to all zeroes or all ones - do { - // shift past readings and add current value - readings = (readings << 1) | ((SWITCH_PORT & (1<<SWITCH_PIN)) == 0); - // wait a moment - _delay_loop_2(BOGOMIPS/16); // up to 2ms to stabilize - } - while ((readings != 0) && (readings != 0xFFFFFFFF)); - button_last_state = readings; - return readings; + uint8_t value = ((SWITCH_PORT & (1<<SWITCH_PIN)) == 0); + button_last_state = value; + return value; } inline void PCINT_on() { @@ -75,7 +65,10 @@ inline void PCINT_off() { //void button_change_interrupt() { #if (ATTINY == 25) || (ATTINY == 45) || (ATTINY == 85) || (ATTINY == 1634) -EMPTY_INTERRUPT(PCINT0_vect); +//EMPTY_INTERRUPT(PCINT0_vect); +ISR(PCINT0_vect) { + irq_pcint = 1; +} #else #error Unrecognized MCU type #endif @@ -104,8 +97,7 @@ void PCINT_inner(uint8_t pressed) { pushed = push_event(B_RELEASE); } - // check if sequence matches any defined sequences - // if so, send event to current state callback + // send event to the current state callback if (pushed) { button_last_state = pressed; emit_current_event(0); |