EK-TM4C123GXL: Need help with PWM! Can't get it to work!

Hello,

I'm trying to set up a pin to enable PWM in order to control a motor driver, but I am having no luck at even generating a PWM signal! I have used several example codes, and tried my own codes as well, and to test the signal I am simply trying to light up an LED, but I haven't been able to do this at all. All the codes I've tried have compiled and executed with no issues, and I've tried the sample codes provided by certain tutorials, which show the working code in their video. For instance, one of the codes I've tried is the following:

/* Generates 10KHz and 50% duty cycle on PF2 pin of TM4C123 Tiva C Launchpad */
/* PWM1 module and PWM generator 3 of PWM1 module is used */
#include "TM4C123GH6PM.h"

int main(void)
{
 
void Delay_ms(int n);
/* Clock setting for PWM and GPIO PORT */
SYSCTL->RCGCPWM |= 2;       /* Enable clock to PWM1 module */
SYSCTL->RCGCGPIO |= 0x20;   /* Enable system clock to PORTF */
SYSCTL->RCC &= ~0x00100000; /* Directly feed clock to PWM1 module without pre-divider */

/* Setting of PF2 pin for M1PWM6 channel output pin */
GPIOF->AFSEL |= (1<<2);     /* PF2 sets a alternate function */
GPIOF->PCTL &= ~0x00000F00; /*set PF2 as output pin */
GPIOF->PCTL |= 0x00000500; /* make PF2 PWM output pin */
GPIOF->DEN |= (1<<2);      /* set PF2 as a digital pin */

/* PWM1 channel 6 setting */
PWM1->_3_CTL &= ~(1<<0);   /* Disable Generator 3 counter */
PWM1->_3_CTL &= ~(1<<1);   /* select down count mode of counter 3*/
PWM1->_3_GENA = 0x0000008C; /* Set PWM output when counter reloaded and clear when matches PWMCMPA */
PWM1->_3_LOAD = 16000;   /* set load value for 1kHz (16MHz/16000) */
PWM1->_3_CMPA = 8000-1;  /* set duty cyle to 50% by loading of 16000 to PWM1CMPA */
PWM1->_3_CTL = 1;         /* Enable Generator 3 counter */
PWM1->ENABLE = 0x40;      /* Enable PWM1 channel 6 output */
    
    while(1)
    {
			//do nothing 
    }
}


/* This function generates delay in ms */
/* calculations are based on 16MHz system clock frequency */

void Delay_ms(int time_ms)
{
    int i, j;
    for(i = 0 ; i < time_ms; i++)
        for(j = 0; j < 3180; j++)
            {}  /* excute NOP for 1ms */
}


Any help would be very much appreciated! 

Thanks!