#include #include #include "tm4c123gh6pm.h" #define mask_bits 0x11 //mask bits for user switch GPIO_PORTF_AFSEL_R |= 0x02; GPIO_PORTF_PCTL_R |= 0x50; PWM1_2_CTL_R= 0x00000000; PWM1_2_GENB_R |= 0x80E; PWM1_2_LOAD_R = 0xA0; PWM1_2_CMPB_R = 0x50; PWM1_2_CTL_R |=0x01; PWM1_ENABLE_R |=(1<<5);