3.3.2 Macros
#define F_CPU (1000000U)
#define WDTCONREG WDTCON0bits
#define TMR0_OVERFLOW_TIME (0.001)
#define PERIOD_VALUE (uint16_t)(0xFFFFU-(TMR0_OVERFLOW_TIME * F_TIMER))
#define TC_MAX_COUNT_BEFORE_ERROR (11U)
#define TC_MIN_COUNT_BEFORE_ERROR (5U)
#define WDTPS_SEL_TEST (3U)