33 lines
602 B
C
33 lines
602 B
C
#ifndef __RTC_H__
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#define __RTC_H__
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#define RTC_I2C_ADDR 0xA2
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#define SECOND 0x02
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#define MINUTE 0x03
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#define HOUR 0x04
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#define INT0_PORT PORTD
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#define INT0_DIR DDRD
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#define INT0_PIN PD2
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#define INT1_PORT PORTD
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#define INT1_DIR DDRD
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#define INT1_PIN PD3
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#define DEC_2_BCD(dec) ((((dec) / 10) << 4) | ((dec) % 10))
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#define BCD_2_DEC(bcd) (((((bcd) >> 4) & 0x0F) * 10) + ((bcd) & 0x0F))
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struct time
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{
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uint8_t hour;
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uint8_t minute;
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uint8_t second;
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};
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void rtc_int0_init(void);
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void rtc_int1_init(void);
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void rtc_set_time(uint8_t part, uint8_t value);
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struct time rtc_read_time(void);
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#endif |