#include #include #include "tm4c123gh6pm.h" void GPIOIntHandler(void); int main(void) { SYSCTL_RCGC2_R |= 0x00000020; /* enable clock to GPIOF */ GPIO_PORTF_LOCK_R = 0x4C4F434B; /* unlock commit register */ GPIO_PORTF_CR_R = 0x11; /* make PORTF0 PORTF4 CONFIGURABLE*/ GPIO_PORTF_DEN_R = 0x1F; /* set PORTF pins 5 pins*/ GPIO_PORTF_DIR_R = 0x0E; /* set PORTF0 PORTF4 pin as input user switch pin */ GPIO_PORTF_PUR_R = 0x11; /* PORTF4 PORT0 is pulled up */ GPIO_PORTF_IM_R = 0x11; /*Masking the ports*/ GPIO_PORTF_IS_R = 0x00; GPIO_PORTF_IEV_R = 0x00; /*detects the falling edge of the switch*/ GPIO_PORTF_IBE_R = 0x00 } while(1) { }