comparator.h

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#ifndef STC15_COMPARATORH
#define STC15_COMPARATORH
 
#include <sys.h>
#include <interrupt.h>
 
#define CMP_ENABLE_BIT_POS 7
#define CMP_ENABLE_BIT_MASK bit_mask(CMP_ENABLE_BIT_POS)
#define CMP_ENABLE_BIT (CMP_ENABLE_BIT_MASK)
 
#define CMPCR1_DEFAULT_VALUE 0x00
#define CMPCR2_DEFAULT_VALUE 0x09
 
#define comparator_init_async()             \
do {                                        \
    CMPCR1 = CMPCR1_DEFAULT_VALUE;          \
    CMPCR2 = CMPCR2_DEFAULT_VALUE;          \
                                            \
    enable_mcu_interrupts();                \
    enable_comparator_interrupt(ANY_EDGE);  \
} while(0)    
 
#define comparator_start() (bit_set(CMPCR1, CMP_ENABLE_BIT))
 
#define comparator_stop() (bit_clr(CMPCR1, CMP_ENABLE_BIT))
 
#endif