Just follow the instruction as below link.
HOWTO: Create a Blinking LED Project (MPC5748G)
Step. 38) You should now see the User LED2 on the board blink every 0.5 seconds.
-> LED blinking is not working here
GPIO is not pulled high/low constantly, because void pitCh0Handler(void) is not triggered.
-> SIUL2->GPDO ^= SIUL2_GPDO_PDO_4n_MASK; // DEV-KIT
Anyone has the same problem?