SilvioCro:

I work on my DIY project with Arduinos (Nano board). I have problem(s) with Serial communation between 1st and 2nd Arduino. 1st Arduino sends one character(letter r) to the 2nd, and that's how 2nd Arduino starts restoring bytes from EEPROM(bytes from 0-25). Only problem is that 2nd Arduino doesn't send bytes correctly, or maybe 1st Arduino doesn't store it correctly.

2nd Arduino has default values in EEPROM:

EEPROMWritelong(EEPROM_DISTANCE, 1500);
EEPROMWritelong(EEPROM_DISTANCE_B, 100);
EEPROMWritelong(EEPROM_DISTANCE_C, 1000);
EEPROMWritelong(EEPROM_DISTANCE_D, 400); 
EEPROM.write(EEPROM_MAX_SPEED, 43);
EEPROM.write(EEPROM_TOP_SPEED, 38);
EEPROMWritelong(EEPROM_TRIP_TIME, 1800);
EEPROMWritelong(EEPROM_WOKR_HOURS, 3600);    

Loop function on second Arduino:

>     // RESTORE
    if (Serial.available())
    {
        incoming = Serial.read();
        if (incoming == 'r')
        {
            uint8_t bytes[5] = { 0, 0, 0, 0, 0 };
            int32_t value = EEPROMReadlong(EEPROM_DISTANCE);
            notSend = 255;
            // DISTANCE
            bytes[3] = (value & 0xFF);
            bytes[2] = ((value >> 8) & 0xFF);
            bytes[1] = ((value >> 16) & 0xFF);
            bytes[0] = ((value >> 24) & 0xFF);
            for(bytes[4] = 3; bytes[4] != 255; bytes[4]--) Serial.write(bytes[bytes[4]]);
           // TRIP A
            value = EEPROMReadlong(EEPROM_DISTANCE_B);
            bytes[3] = (value & 0xFF);
            bytes[2] = ((value >> 8) & 0xFF);
            bytes[1] = ((value >> 16) & 0xFF);
            bytes[0] = ((value >> 24) & 0xFF); 
            for(bytes[4] = 3; bytes[4] != 255; bytes[4]--) Serial.write(bytes[bytes[4]]);
            // TRIP B
            value = EEPROMReadlong(EEPROM_DISTANCE_C);
            bytes[3] = (value & 0xFF);
            bytes[2] = ((value >> 8) & 0xFF);
            bytes[1] = ((value >> 16) & 0xFF);
            bytes[0] = ((value >> 24) & 0xFF); 
            for(bytes[4] = 3; bytes[4] != 255; bytes[4]--) Serial.write(bytes[bytes[4]]);
            // TRIP C
            value = EEPROMReadlong(EEPROM_DISTANCE_D);
            bytes[3] = (value & 0xFF);
            bytes[2] = ((value >> 8) & 0xFF);
            bytes[1] = ((value >> 16) & 0xFF);
            bytes[0] = ((value >> 24) & 0xFF); 
            for(bytes[4] = 3; bytes[4] != 255; bytes[4]--) Serial.write(bytes[bytes[4]]);
            // MAX SPEED AND TOP SPEED
            Serial.write(EEPROM.read(EEPROM_MAX_SPEED));
            Serial.write(EEPROM.read(EEPROM_TOP_SPEED));
            // TRIP TIME
            value = EEPROMReadlong(EEPROM_TRIP_TIME);
            bytes[3] = (value & 0xFF);
            bytes[2] = ((value >> 8) & 0xFF);
            bytes[1] = ((value >> 16) & 0xFF);
            bytes[0] = ((value >> 24) & 0xFF); 
            for(bytes[4] = 3; bytes[4] != 255; bytes[4]--) Serial.write(bytes[bytes[4]]);
            // WORK HOURS
            value = EEPROMReadlong(EEPROM_WOKR_HOURS);
            bytes[3] = (value & 0xFF);
            bytes[2] = ((value >> 8) & 0xFF);
            bytes[1] = ((value >> 16) & 0xFF);
            bytes[0] = ((value >> 24) & 0xFF); 
            for(bytes[4] = 3; bytes[4] != 255; bytes[4]--) Serial.write(bytes[bytes[4]]);
            notSend = 0;
        }
    }

Code for restore on frist Arduino:

uint8_t byteCount = 0;
Serial.write('r'); // STARTS RESTORING

do
{
    if (Serial.available())
    {
        if (byteCount >= 0 && byteCount         else if (byteCount >= 18 && byteCount         else EEPROM.write(byteCount + 16, Serial.read()); // WORK HOURS

        byteCount++;
    }
}
while (byteCount != 26);

I did print of all bytes during this process, and bytes don't match at all. Left side is seding bytes from 2nd Arduino to the frist, right side is reciving bytes on 1st Arduino from 2nd Arduino.