The ramn_eeprom module is a wrapper of STM32's EEPROM emulation layer. It can be used to read/write data on the STM32L5's flash memory.
//Inits the EEPROM Layer. May take some time.
EE_Status RAMN_EEPROM_Init();
//Writes a 32-bit value at the specified index. May take some time.
EE_Status RAMN_EEPROM_Write32(uint16_t index, uint32_t val);
//Reads a 32-bit value from the specified index.
EE_Status RAMN_EEPROM_Read32(uint16_t index, uint32_t* pval);