/**************************************************************************************************************************** multiFileProject.cpp For SAMD21/SAMD51 using Flash emulated-EEPROM The FlashStorage_SAMD library aims to provide a convenient way to store and retrieve user's data using the non-volatile flash memory of SAMD21/SAMD51. It now supports writing and reading the whole object, not just byte-and-byte. Based on and modified from Cristian Maglie's FlashStorage (https://github.com/cmaglie/FlashStorage) Built by Khoi Hoang https://github.com/khoih-prog/FlashStorage_SAMD *****************************************************************************************************************************/ // To demo how to include files in multi-file Projects #include "multiFileProject.h" void testEEPROM() { Serial.print("EEPROM length: "); Serial.println(EEPROM.length()); // Check signature at address 0 int signature; // Create a "Person" variable and call it "owner" uint16_t storedAddress = 0; Person owner; EEPROM.get(storedAddress, signature); // If the EEPROM is empty then no WRITTEN_SIGNATURE if (signature == WRITTEN_SIGNATURE) { EEPROM.get(storedAddress + sizeof(signature), owner); // Say hello to the returning user! Serial.print("Hi "); Serial.print(owner.name); Serial.print(" "); Serial.print(owner.surname); Serial.println(", nice to see you again :-)"); Serial.println("Clearing WRITTEN_SIGNATURE for next try"); EEPROM.put(0, 0); Serial.println("Done clearing signature in emulated EEPROM. You can reset now"); } else { Serial.println("EEPROM is empty, writing WRITTEN_SIGNATURE and some example data:"); EEPROM.put(storedAddress, WRITTEN_SIGNATURE); // ...in this case we ask for user data. Serial.setTimeout(30000); Serial.print("Insert your name : "); String name = Serial.readStringUntil('\n'); Serial.println(name); Serial.print("Insert your surname : "); String surname = Serial.readStringUntil('\n'); Serial.println(surname); // Fill the "owner" structure with the data entered by the user... name.toCharArray(owner.name, 100); surname.toCharArray(owner.surname, 100); // ...and finally save everything into emulated-EEPROM EEPROM.put(storedAddress + sizeof(signature), owner); if (!EEPROM.getCommitASAP()) { Serial.println("CommitASAP not set. Need commit()"); EEPROM.commit(); } // Print a confirmation of the data inserted. Serial.print("<< Your name: "); Serial.print(owner.name); Serial.print(". Your surname: "); Serial.print(owner.surname); Serial.println(" >> have been saved. Thank you!"); Serial.println("You can reset to check emulated-EEPROM data retention."); } }