dranger003

// ATtiny85
// Hardware PWM, pins 0, 1 & 4

int main()
{
  sei();

  DDRB = _BV(PORTB0);         // OC0A
  DDRB |= _BV(PORTB1);        // OC0B
  DDRB |= _BV(PORTB4);        // OC1B

dranger003

const double _F = F_CPU / 38000.0 + 0.5 - 1;
const double _D = _F * 0.33 + 0.5 - 1;

const uint16_t _cv[] = { 40085, 36.39716198 };

const uint16_t _cp[][2] =
{
  { 97,   24 },
  { 24,   24 },
  { 48,   24 },

dranger003

// 1 cycle = 62.5ns

int main()
{
  DDRD |= _BV(3);
  PORTD &= ~_BV(3);

  for (;;)
  {
    PORTD ^= _BV(3);        // 5 cycles