LM4F120 (launchpad) interrupt not working

Hello everyone,

I am a newbie with the launchpad and trying to run FREERTOS with a few tasks. One of my tasks is to get triggered by an interrupt on portE, pin 5. Then start a task which signals it's ready on portA, pin6.

The problem I´m having is that the interrupt doesn´t seem to be firing. I have put a breakpoint in my ISR to check if the code reaches that point, but it doesn´t.

Below is my code for setting the interrupt on port E pin 5. Can anyone tell me what I'm missing?

SysCtlPeripheralEnable( SYSCTL_PERIPH_GPIOA | SYSCTL_PERIPH_GPIOE );          //enable clocks for port A and E

GPIOPinTypeGPIOOutput( GPIO_PORTA_BASE, GPIO_PIN_6 );                                        // Set direction for pins in port A (pin 6 output)

GPIOPinTypeGPIOInput( GPIO_PORTE_BASE, GPIO_PIN_5 );                                          // Set direction for pins in port E (pin 5 input)
GPIOPortIntRegister( GPIO_PORTE_BASE, &vPortEISRHandler );                                   // Enable interrupt for port E and point to handler
GPIOPinIntClear( GPIO_PORTE_BASE, GPIO_PIN_5 );                                                      // Clear any pending interrupts
GPIOIntTypeSet( GPIO_PORTE_BASE, GPIO_PIN_5, GPIO_RISING_EDGE );              // Setup pin to trigger on rising edge

GPIOPinIntEnable(GPIO_PORTE_BASE, GPIO_PIN_5);                                                    // Enable pinint, portint and master int
IntEnable(INT_GPIOE);

IntMasterEnable();