flm01/mote/v2/avr/debug.h

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#if DBG > 0
/* set LED pin high/low at the start/end of an ISR */
#define DBG_ISR_BEGIN() PORTB |= (1<<PB0)
#define DBG_ISR_END() PORTB &= ~(1<<PB0)
/* Set PB1=OC1A as output pin and toggle this pin on TIMER1 compare match */
#define DBG_OC1A_TOGGLE() DDRB |= (1<<DDB1); \
TCCR1A |= 1<<COM1A0
#define DBG_LED_ON() /* nothing */
#define DBG_LED_OFF() /* nothing */
#else
#define DBG_ISR_BEGIN() /* nothing */
#define DBG_ISR_END() /* nothing */
#define DBG_OC1A_TOGGLE() /* nothing */
/* LED behaviour in non-debugging mode */
#define DBG_LED_ON() PORTB &= ~(1<<PB0)
#define DBG_LED_OFF() PORTB |= (1<<PB0)
#endif