Why is the EEPROM of my ESP8266 not working?

Question

I need to get some values saved into eeprom on my esp 8266, but it's not working. I get the Error "ERROR! EEPROM commit failed" when i try to EEPROM.commit() some writes. I tested it with my own code, but it also doesn't even work with the examples from the EEPROM library. I have multiple ESP8266MOD and tested with some of them, but no one worked. Anybody got an idea?

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Answer 1

As we discussed in the comments, it is not working because ESP8266 do not have EEPROM and your option is to use Flash to emulate the EEPROM.

I have not done a thorough research as I am not using ESP8266 on regular basis but did try the ESP_EEPROM library and it seem to be working well, here's the code I just tested:

#include <ESP_EEPROM.h>

void setup() {
  Serial.begin(115200);
  while(!Serial);
  EEPROM.begin(16); // looks like 16 bytes is the minimum
  EEPROM.put(0, 1234); // first parameter sets the position in the buffer, second the value
  boolean res = EEPROM.commit();
  Serial.println(res); // should print 1 (true) if commit worked as expected
  int myVar;
  EEPROM.get(0, myVar);
  Serial.println(myVar);
}


void loop() {
}