41 lines
1.0 KiB
C
41 lines
1.0 KiB
C
void EEPROM_write_char(uint16_t address, unsigned char data)
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{
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/* Wait for completion of previous write */
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while(EECR & (1<<EEPE));
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/* Set up address and Data Registers */
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EEAR = address;
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EEDR = data;
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/* Write logical one to EEMPE */
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EECR |= (1<<EEMPE);
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/* Start eeprom write by setting EEPE */
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EECR |= (1<<EEPE);
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}
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unsigned char EEPROM_read_char(uint16_t uiAddress)
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{
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/* Wait for completion of previous write */
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while(EECR & (1<<EEPE));
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/* Set up address register */
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EEAR = uiAddress;
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/* Start eeprom read by writing EERE */
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EECR |= (1<<EERE);
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/* Return data from Data Register */
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return EEDR;
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}
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void EEPROM_write_string(uint16_t address, char* buffer, uint16_t length)
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{
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for(uint16_t i = 0; i < length; i++)
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{
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EEPROM_write_char( address+i, buffer[i] );
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}
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}
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void EEPROM_read_string(uint16_t address, char* buffer, uint16_t length)
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{
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for(uint16_t i = 0; i < length; i++)
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{
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buffer[i] = EEPROM_read_char( address+i);
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}
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}
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