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How to enable NMI Pin in Tiva TM4C123GH and configure the ISR?

Dilgush Idikkula
Prodigy 100 points
Other Parts Discussed in Thread: TM4C123GH6PM

Hi All,

Can anybody please help me on configuring the NMI pin in the TM4C123GH6PM pin PD7. Also i couldn't see any API functions in the software driver library for NMI and linking ISR for NMI interrupt. If i configure the GPIO pin as NMI pin and enable the GPIO interrupt on the sam pin, will that GPIO pin be treated as a NMI interrupt?

SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);

HWREG(GPIO_PORTD_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY; 

HWREG(GPIO_PORTD_BASE + GPIO_O_CR) |= 0x80;

HWREG(GPIO_PORTD_BASE+ GPIO_O_AFSEL)|=0x80;

GPIO_PORTD_PCTL_R|=0x80000000;

HWREG(GPIO_PORTD_BASE+ GPIO_O_DEN)|=0x80;

HWREG(GPIO_PORTD_BASE + GPIO_O_LOCK) = 0;

Also can i use the below API for configuring the PD7 pin as NMI pin? I hope that will do.

GPIOPinConfigure(GPIO_PD7_NMI);

One more thing, Does  GPIOIntTypeSet(GPIO_PORTD_BASE,GPIO_PIN_7,GPIO_FALLING_EDGE ); can help to create a NMI on the falling edge on PD7 pin?

Thanks and Regards

Dilgush