The MCUXpresso SDK provides a driver for the In Application Programming (IAP).
It provides a set of functions to call the on-chip in application programming interface. User code executing from on-chip RAM can call these function to read information like part id, read and write flash, read and write ffr.

In Application Programming operation

FLASH_Init() Initializes the global flash properties structure members

FLASH_Erase() Erases the flash sectors encompassed by parameters passed into function

FLASH_Program() Programs flash with data at locations passed in through parameters

FLASH_VerifyErase() Verifies an erasure of the desired flash area hase been erased

FLASH_VerifyProgram() Verifies programming of the desired flash area hase been programed

FLASH_GetProperty() Returns the desired flash property.

FFR_Init() Generic APIs for FFR

FFR_Deinit() Generic APIs for FFR

FFR_CustomerPagesInit() APIs to access CFPA pages

FFR_InfieldPageWrite() APIs to access CFPA pages

FFR_GetCustomerInfieldData() APIs to access CMPA pages

FFR_GetCustomerData() Read data stored in 'Customer Factory CFG Page

FFR_KeystoreWrite() Read data stored in 'Customer Factory CFG Page

FFR_KeystoreGetAC() Read data stored in 'Customer Factory CFG Page

FFR_KeystoreGetKC() Read data stored in 'Customer Factory CFG Page

FFR_GetUUID() Read data stored in 'NXP Manufacuring Programmed CFG Page

FFR_GetManufactureData() Read data stored in 'NXP Manufacuring Programmed CFG Page

Typical use case

IAP Basic Operations

Refer to the driver examples codes located at <SDK_ROOT>/boards/<BOARD>/driver_examples/iap1