52 lines
1.3 KiB
C++
52 lines
1.3 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++) EEPROM_write_char( address+i, buffer[i] );
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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++) buffer[i] = EEPROM_read_char( address+i);
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}
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template <class T> void EEPROM_write_class(uint16_t address, T& in)
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{
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EEPROM_write_string( address, reinterpret_cast<char*>(&in), sizeof(in));
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}
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template <class T> T EEPROM_read_class(uint16_t address)
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{
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char data[sizeof(T)];
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EEPROM_read_string( address, data, sizeof(T) );
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return *reinterpret_cast<T*>(data);
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}
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template <class T> void EEPROM_read_class(uint16_t address, T* in)
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{
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EEPROM_read_string( address, reinterpret_cast<char*>(in), sizeof(T) );
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}
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