ht16k33.h

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#ifndef HT16K33_H_
#define HT16K33_H_

// Display data address pointer
#define HT16K33_DRAM_SIZE 16
#define HT16K33_SET_DRAM_ADDR 0x00
#define HT16K33_DRAM_ADDR(ADDR) ((ADDR) & 0x0F)

// System setup 
#define HT16K33_SYSTEM_SETUP 0x20
#define HT16K33_OSCILLATOR_ON 0x01
#define HT16K33_OSCILLATOR_OFF 0x00

// Key data address pointer
#define HT16K33_READ_KEY_ADDR 0x40

// INT flag address pointer
#define HT16K33_READ_FLAG_ADDR 0x60

// Display setup
#define HT16K33_DISPLAY_SETUP 0x80
#define HT16K33_BLINK_OFF 0x00
#define HT16K33_BLINK_FAST 0x02
#define HT16K33_BLINK_MED 0x04
#define HT16K33_BLINK_SLOW 0x06
#define HT16K33_DISPLAY_OFF 0x00
#define HT16K33_DISPLAY_ON 0x01

// ROW/INT set
#define HT16K33_ROWINT_SET 0xA0
#define HT16K33_SET_ROW 0x00
#define HT16K33_SET_INT_ACTIVE_LOW 0x1
#define HT16K33_SET_INT_ACTIVE_HIW 0x3

// Dimming set
#define HT16K33_SET_DIMMING 0xE0
#define HT16K33_DUTY16(DUTY) (((DUTY)-1) & 0x0F)

#endif /* HT16K33_H_ */