updateEEPROM()

[EEPROM]

void updateEEPROM(unsigned short address, unsigned char value);

Description

Updates the EEPROM memory with the specified byte value at the specified address.

Parameters

address: the address where the data will be written.

value: the data to be written if the data is different from the data already stored in the EEPROM memory.

Returns

Nothing.

Example Code

The code initializes the EEPROM with a size of 1024 bytes and a width of 1 byte and updates the value in the EEPROM memory at the address 0x00 with a counter value, incrementing it by one each time the loop is executed.

void setup() {
    beginEEPROM(1024);        // initializes the EEPROM memory with a size of 1024 bytes and a data width of 1 byte
    writeEEPROM(0x00, 0x00);  // writes the value 0x00 to the EEPROM memory at the address 0x00
}

void loop() {
    unsigned char value = readEEPROM(0x00);  // reads the value from the EEPROM memory at the address 0x00
    value++;                                // increments the value by one
    updateEEPROM(0x00, value);              // updates the value in the EEPROM memory at the address 0x00
}

Notes and Warnings

• The updateEEPROM() function can only be used after the beginEEPROM() function.
• The value parameter must be an 8-bit value (0-255) or an unsigned char.