TM4C123GH6PM: Wide Timer not working

void ServoWrite(uint32_t valor) {
	uint32_t i = 0;
	i = Period - ( (valor * 444) + 80000);
	TimerMatchSet(WTIMER0_BASE, TIMER_A, i);
}

int main(void) {
    SysCtlClockSet(SYSCTL_SYSDIV_2_5|SYSCTL_USE_PLL|SYSCTL_OSC_MAIN|SYSCTL_XTAL_16MHZ);

    SysCtlPeripheralEnable(SYSCTL_PERIPH_WTIMER0);
    SysCtlDelay(3);
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
    SysCtlDelay(3);
    GPIOPinConfigure(GPIO_PC5_WT0CCP1);
    GPIOPinTypeTimer(GPIO_PORTC_BASE, GPIO_PIN_5);
    TimerConfigure(WTIMER0_BASE, TIMER_CFG_SPLIT_PAIR|TIMER_CFG_B_PWM);
    TimerLoadSet(WTIMER0_BASE, TIMER_B, Period-1);
    TimerMatchSet(WTIMER0_BASE, TIMER_B, Period-1);

    HWREG(WTIMER0_BASE+TIMER_TBMR_TBMRSU) =1;

    TimerEnable(WTIMER0_BASE, TIMER_B);

    uint32_t i = 1;

	while(1){

		SysCtlDelay(20000);
		for(i = 1; i < 30; i++)
		{
			ServoWrite(i);
			SysCtlDelay(26600);
		}
		SysCtlDelay(20000);
        for(i = 30; i> 1; i--)
        {
            ServoWrite(i);
            SysCtlDelay(26600);
        }

	}

	return 0;
}

I have a ServoWrite Funciton which changes the MatchSet

Enari,

The code below is a very simple Timer example that generates a periodic output. It is tested to work. As you will see from the parameter, the PWM duty here will be 40%.

In this case, a standard timer is used (we prefer to use the wide timers only if strictly necessary, because not all parts on the family have those), and the pins are mapped to a TM4C129.

    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
    while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOD)));
    SysCtlPeripheralDisable(SYSCTL_PERIPH_TIMER1);
    SysCtlPeripheralReset(SYSCTL_PERIPH_TIMER1);
    SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER1);
    while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_TIMER1)));
    GPIOPinTypeTimer(GPIO_PORTD_BASE, GPIO_PIN_3);
    GPIOPinConfigure(GPIO_PD3_T1CCP1);
    TimerConfigure(TIMER1_BASE, TIMER_CFG_SPLIT_PAIR | TIMER_CFG_B_PWM);
    TimerLoadSet(TIMER1_BASE, TIMER_B, 10000);
    TimerMatchSet(TIMER1_BASE, TIMER_B, 4000);
    TimerControlLevel(TIMER1_BASE, TIMER_B, false); // Just an example to make the timer PWM active high
    TimerEnable(TIMER1_BASE, TIMER_B);

You may want to use this as a step-by-step reference, and only then add your servo controlling features.

Regards

Bruno