avr/ws2812/src/main.c

#include <avr/io.h>
#include <util/delay.h>
#include "ws2812.h"
#include "np_common.c"

/*
#include <simavr/avr/avr_mcu_section.h>
AVR_MCU(F_CPU, "attiny85");

const struct avr_mmcu_vcd_trace_t _mytrace[]  _MMCU_ = {
   { AVR_MCU_VCD_SYMBOL("GTCCR"), .what = (void*)&GTCCR, },
   // { AVR_MCU_VCD_SYMBOL("TCCR0B"), .what = (void*)&TCCR0B, },
   { AVR_MCU_VCD_SYMBOL("TIMSK"), .what = (void*)&TIMSK, },
   { AVR_MCU_VCD_SYMBOL("TIFR"), .what = (void*)&TIFR, },
   { AVR_MCU_VCD_SYMBOL("OCR0A"), .what = (void*)&OCR0A, },
   { AVR_MCU_VCD_SYMBOL("OCR0B"), .what = (void*)&OCR0B, },
   { AVR_MCU_VCD_SYMBOL("current"), .what = (void*)&current, },
   { AVR_MCU_VCD_SYMBOL("idx"), .what = (void*)&idx, },
   { AVR_MCU_VCD_SYMBOL("cnt"), .what = (void*)&cnt, },
   { AVR_MCU_VCD_SYMBOL("val"), .what = (void*)&val, },
   // { AVR_MCU_VCD_SYMBOL("DDRB"), .what = (void*)&DDRB, },
   { AVR_MCU_VCD_SYMBOL("PORTB"), .what = (void*)&PORTB, },
   // { AVR_MCU_VCD_SYMBOL("TCNT0"), .what = (void*)&TCNT0, },
   // { AVR_MCU_VCD_SYMBOL("TCNT1"), .what = (void*)&TCNT1, },
};
*/

#define PIXEL_COUNT 7
const uint8_t pixels_1[PIXEL_COUNT * 4] =
    {   0, 0, 0, 0,
       32, 0, 0, 0,
       64, 0, 0, 0,
       96, 0, 0, 0,
      128, 0, 0, 0,
      160, 0, 0, 0,
      192, 0, 0, 0 };

const uint8_t pixels_2[PIXEL_COUNT * 4] =
    { 0,   0, 0, 0,
      0,  32, 0, 0,
      0,  64, 0, 0,
      0,  96, 0, 0,
      0, 128, 0, 0,
      0, 160, 0, 0,
      0, 192, 0, 0 };

const uint8_t pixels_3[PIXEL_COUNT * 4] =
    { 0, 0,   0, 0,
      0, 0,  32, 0,
      0, 0,  64, 0,
      0, 0,  96, 0,
      0, 0, 128, 0,
      0, 0, 160, 0,
      0, 0, 192, 0 };

const uint8_t pixels_4[PIXEL_COUNT * 4] =
    {   0,   0,   0,   0,
        0,   0,   0,  32,
        0,   0,   0,  64,
        0,   0,   0,  96,
        0,   0,   0, 128,
        0,   0,   0, 160,
        0,   0,   0, 192 };

void blink(void) {
    PORTB |= _BV(2);
    _delay_ms(100);
    PORTB &= ~(_BV(2));
}

int main (void) {
    _delay_ms(1000);

    PORTB = 0;
    DDRB = _BV(0) | _BV(1) | _BV(2);
    _delay_ms(50);

    blink();
    np_initialize();
    sei();

    _delay_ms(500);

    while (1) {
        blink();
        write_pixels(pixels_1, PIXEL_COUNT * 4);
        _delay_ms(1000);
        write_pixels(pixels_2, PIXEL_COUNT * 4);
        _delay_ms(1000);
        write_pixels(pixels_3, PIXEL_COUNT * 4);
        _delay_ms(1000);
        write_pixels(pixels_4, PIXEL_COUNT * 4);
    }
}