Am 08.11.2016 um 01:56 schrieb Britton Kerin:
#define BLINK_PB5_LED_FOREVER(period_ms) \
  do {                                   \
    for ( ; ; ) {                        \
      PORTB |= _BV (PORTB5);             \
      _delay_ms (period_ms / 2.0);       \
      PORTB &= ~(_BV (PORTB5));          \
      _delay_ms (period_ms / 2.0);       \
    }                                    \
  } while ( 0 );


This do while dont make any sense, with while(0) it will
run only once. while(1) would do it forever.
Anyway the for(;;) will do the loop for ever.


  while ( 1 ) {
    set_sleep_mode (SLEEP_MODE_IDLE);
    sleep_enable ();
    sei ();
    sleep_cpu ();
    sleep_disable ();
    cli ();

    if ( inry ) {
      BLINK_PB5_LED_FOREVER (100.42);   // Never seems to happen
    }

    if ( ! got_pbpci ) {
      BLINK_PB5_LED_FOREVER (200.42);   // Always happend eventually
    }
    else {
      got_pbpci = 0;
    }
  }

I think after reaching BLINK_PB5_LED_FOREVER it will never again
go to sleep mode. And interrupts will also not happen because
of the cli().

Rolf


_______________________________________________
AVR-chat mailing list
[email protected]
https://lists.nongnu.org/mailman/listinfo/avr-chat

Reply via email to