Setup: K64F + shield I didn't modify any code or configuration (using default littlefs with spif) Got error on boot: mbed assertation failed: (int)obj->spi.instance != NC, file: .\mbed-os\targets\TARGET_Freescale\TARGET_MCUXpresso_MCUS\TARGET_M”¿“/ÿÿÿÿ eÐ~