#include #include "tm4c123gh6pm.h" /** * main.c */ void GPIO_PORTF_Init(void); int main(void) { NVIC_ST_RELOAD_R = 0x10; NVIC_ST_CURRENT_R = 0x0; //Enable Systick: // SYST_CSR = 0x00000101 -- 0x5 NVIC_ST_CTRL_R = 0x5; while(1); } void GPIO_PORTF_Init(void) { SYSCTL_RCGC2_R |= SYSCTL_RCGC2_GPIOF; GPIO_PORTF_DEN_R = 0x1F; GPIO_PORTF_PUR_R = 0x11; GPIO_PORTF_DIR_R = 0x0E; }