67 lines
1.3 KiB
C
67 lines
1.3 KiB
C
#include <avr/interrupt.h>
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#include <avr/sleep.h>
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#include <dio.h>
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/*
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#include <simavr/avr/avr_mcu_section.h>
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AVR_MCU(F_CPU, "attiny85");
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const struct avr_mmcu_vcd_trace_t _mytrace[] _MMCU_ = {
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{ AVR_MCU_VCD_SYMBOL("GTCCR"), .what = (void *)>CCR, },
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{ AVR_MCU_VCD_SYMBOL("TCCR0A"), .what = (void *)&TCCR0A, },
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{ AVR_MCU_VCD_SYMBOL("TCCR0B"), .what = (void *)&TCCR0B, },
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{ AVR_MCU_VCD_SYMBOL("PORTB"), .what = (void *)&PORTB, },
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{ AVR_MCU_VCD_SYMBOL("TCNT0"), .what = (void *)&TCNT0, },
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};
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*/
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#define FPS 10
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#define FPS_MS 1000 / FPS
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#define MULT 5
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/*
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typedef struct {
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uint8_t value;
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int8_t inc;
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} counter_t;
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void counter_update(counter_t *self) {
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int16_t value = self->value;
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value += self->inc;
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if (value >= 255) {
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self->value = 255;
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self->inc = -1;
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} else if (value <= 0) {
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self->value = 0;
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self->inc = 1;
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} else {
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self->value = value;
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}
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}
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*/
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int main(void) {
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DDRB = 0xff;
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PORTB = 0;
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TCCR0A = _BV(COM0A1) | _BV(COM0B1) | _BV(WGM01) | _BV(WGM00);
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TCCR0B = _BV(CS00);
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uint8_t brightness = 1;
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GTCCR = 0;
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while(1) {
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OCR0A = brightness;
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OCR0B = brightness;
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_delay_ms(100);
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brightness += 1;
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}
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return 0;
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}
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