Arduino EEPROM Erase
Clearing your EEPROM
If your DCF77 library held on your Arduino has become corrupted the Arduino will not "Synchronize" to a good signal and will display a low "Signal Quality %" even though the signal is perfect.
Load this small bit of code to your Arduino to erase the EEPROM then reload your original clock code.
/*
* EEPROM Clear
*
* Sets all of the bytes of the EEPROM to 0.
* Please see eeprom_iteration for a more in depth
* look at how to traverse the EEPROM.
*
* This example code is in the public domain.
*/
#include <EEPROM.h>
void setup() {
Serial.begin(9600);
/***
Iterate through each byte of the EEPROM storage.
Larger AVR processors have larger EEPROM sizes, E.g:
- Arduno Duemilanove: 512b EEPROM storage.
- Arduino Uno: 1kb EEPROM storage.
- Arduino Mega: 4kb EEPROM storage.
Rather than hard-coding the length, you should use the pre-provided length function.
This will make your code portable to all AVR processors.
***/
Serial.println("Ready");// displays Ready then shows progress on serial port
Serial.print("EEPROM Size ");
Serial.println(EEPROM.length());
delay(3000);
for (int i = 0 ; i < EEPROM.length() ; i++) {
EEPROM.write(i, 0);
Serial.println(i);
}
Serial.println("Completed");
}
void loop() {
/** Empty loop. **/
}