Arduino EEPROM Test

EEPROM Test

// Flashing LED indicates an error

#include <EEPROM.h>

unsigned char fillchar = 0xFF;
int fault = 0;

void setup() {
  pinMode(13, OUTPUT);
  // put your setup code here, to run once:
  for (int i=0; i<1024; i++) {
    EEPROM.write(i, fillchar);
  }

  for (int i=0; i<1024; i++) {
    unsigned char b = EEPROM.read(i);
    if (b != fillchar) {
      fault = 1;
      break;
    }
  }
}

void loop() {
  // put your main code here, to run repeatedly:
  if (fault) {
    digitalWrite(13, HIGH);
    delay(200);
    digitalWrite(13, LOW);
    delay(200);
  }
}