Stelaris QEI

int main(void)
{
    SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_XTAL_8MHZ | SYSCTL_OSC_MAIN); //setting clock


    SysCtlPeripheralEnable(SYSCTL_PERIPH_QEI0); //enable qei0

    SysCtlPeripheralEnable(SYSCTL_PERIPH_QEI1);//enable qei1

    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA); //enable GPIO
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOG);
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOH);

    GPIOPinTypeQEI(GPIO_PORTC_BASE, GPIO_PIN_4); //config qei0
    GPIOPinTypeQEI(GPIO_PORTH_BASE, GPIO_PIN_3);
    QEIConfigure(QEI0_BASE, ( QEI_CONFIG_CAPTURE_A | QEI_CONFIG_NO_RESET| QEI_CONFIG_QUADRATURE | QEI_CONFIG_NO_SWAP ),0xFFFFFFFF );

    GPIOPinTypeQEI(GPIO_PORTG_BASE, GPIO_PIN_6 | GPIO_PIN_7); //config qei1
    QEIConfigure(QEI1_BASE, ( QEI_CONFIG_CAPTURE_A | QEI_CONFIG_NO_RESET| QEI_CONFIG_QUADRATURE | QEI_CONFIG_NO_SWAP ),0xFFFFFFFF );

    QEIEnable(QEI0_BASE); //enable qie0
    QEIPositionSet(QEI0_BASE, 2000);

    QEIEnable(QEI1_BASE); //enable qie1
    QEIPositionSet(QEI1_BASE, 2000);
...

position1 = QEIPositionGet(QEI1_BASE); //get position
position2 = QEIPositionGet(QEI0_BASE);
...

}