66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
#include <dio.h>
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#include <display.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <avr/sleep.h>
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#include <avr/interrupt.h>
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dio_t light = { .ddr = &DDRC, .port = &PORTC, .pin = &PINC, .addr = 7 };
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dio_t interrupt_line = { .ddr = &DDRD, .port = &PORTD, .pin = &PIND, .addr = 2 };
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bool button_values[4] = { false, false, false, false };
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dio_t buttons[4] = {
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{ .ddr = &DDRD, .port = &PORTD, .pin = &PIND, .addr = 6 },
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{ .ddr = &DDRB, .port = &PORTB, .pin = &PINB, .addr = 7 },
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{ .ddr = &DDRB, .port = &PORTB, .pin = &PINB, .addr = 6 },
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{ .ddr = &DDRB, .port = &PORTB, .pin = &PINB, .addr = 5 },
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};
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ISR(INT2_vect) {
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dio_set(&light, 1);
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for (int i = 0; i < 4; i++) {
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button_values[i] = dio_read(&buttons[i]);
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}
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}
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void display_buttons(display_t *display) {
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char msg[16];
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snprintf(msg, 16, ": %d %d %d %d", button_values[0], button_values[1], button_values[2], button_values[3]);
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display_clear(display);
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display_write_message(display, msg);
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}
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int main(void) {
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EIMSK = 1 << INT2;
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EICRA |= 1 << ISC21 | 1 << ISC20;
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display_t display = {
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.reg = {
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.output = { .ddr = &DDRF, .port = &PORTF, .pin = &PINF, .addr = 7 },
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.shift_clock = { .ddr = &DDRF, .port = &PORTF, .pin = &PINF, .addr = 6 },
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.latch_clock = { .ddr = &DDRF, .port = &PORTF, .pin = &PINF, .addr = 5 },
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}
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};
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display_init(&display);
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dio_set_direction(&light, LINE_OUT);
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dio_set_direction(&interrupt_line, LINE_IN);
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for (int i = 0; i < 4; i++) {
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dio_set_direction(&buttons[i], LINE_IN);
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}
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set_sleep_mode(SLEEP_MODE_IDLE);
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while (1) {
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display_buttons(&display);
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dio_set(&light, 0);
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sei();
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sleep_mode();
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cli();
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}
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return 0;
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}
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