Forum Post: RE: Generating an interrupt at PORT A PA2 pin

Hi,

[quote user="Anand Meharwade"]HWREG(GPIO_PORTA_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY_DD;[/quote]

GPIO_LOCK_KEY_DD - Unlocks the GPIO_CR on Dust Devil Devices not for LM4F232, which is Blizzard class.

Reference:

hw_gpio.h