eeprom169.h

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#ifndef _eeprom168_h_
#define _eeprom168_h_

#include <inttypes.h>
#include <avr/interrupt.h>

static inline uint8_t eeprom_read_byte_169(const uint16_t *addr)
{
        // cli();
        /* Wait for completion of previous write */
        while(EECR & (1<<EEWE)) asm volatile ("nop"::);
        /* Set up address register */
        EEAR = *addr;
        /* Start eeprom read by writing EERE */
        EECR |= (1<<EERE);
        /* Return data from Data Register */
        // sei();
        return EEDR;
}

static inline void eeprom_write_byte_169(uint16_t *addr, uint8_t val) 
{
        cli();
        /* Wait for completion of previous write */
        while(EECR & (1<<EEWE)) asm volatile ("nop"::);
        /* Set up address and Data Registers */
        EEAR = *addr;
        EEDR = val;
        /* Write logical one to EEMWE */
        EECR |= (1<<EEMWE);
        /* Start eeprom write by setting EEWE */
        EECR |= (1<<EEWE);
        while(EECR & (1<<EEWE)) asm volatile ("nop"::);
        sei();
}

#endif