Stellaris Evalution Kit-EKK LM3S8962

Code:

#include "inc/hw_types.h"
#include "driverlib/debug.h"
#include "driverlib/sysctl.h"
#include "drivers/rit128x96x4.h"

#include "driverlib/comp.c"
#include "driverlib/comp.h"
#include "driverlib/adc.c"
#include "driverlib/adc.h"
#include "driverlib/gpio.c"
#include "driverlib/gpio.h"

#include <stdio.h>
#include <LM3Sxxxx.H>           // LM3Sxxxx library definitions

int i;

//*****************************************************************************
//
// The error routine that is called if the driver library encounters an error.
//
//*****************************************************************************
#ifdef DEBUG
void
__error__(char *pcFilename, unsigned long ulLine)
{
}
#endif

int
main(void)
{
    //
    // Set the clocking to run directly from the crystal.
    //
    SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN | SYSCTL_XTAL_8MHZ);

    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);                                                     // dozvola rada porta E
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);                                                     // dozvola rada porta F
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);                                                     // dozvola rada porta C
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOG);                                                     // dozvola rada porta G
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);                                                     // dozvola rada porta D
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);                                                     // dozvola rada porta A
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);                                                     // dozvola rada porta B

    GPIOPinTypeComparator(GPIO_PORTB_BASE,GPIO_PIN_6);
    GPIOPadConfigSet(GPIO_PORTB_BASE, GPIO_PIN_6, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_ANALOG);
    ComparatorRefSet(COMP_BASE, COMP_REF_2_371875V);
    ComparatorConfigure(COMP_BASE, 0, (COMP_TRIG_NONE | COMP_INT_BOTH | COMP_ASRCP_REF | COMP_OUTPUT_NORMAL));


    //
    // Initialize the OLED display.
    //
    RIT128x96x4Init(1000000);

    RIT128x96x4StringDraw("Analog comparator",  15,  6, 12);
    RIT128x96x4StringDraw("      test...",         15, 15, 12);
    RIT128x96x4StringDraw("Comparator:", 0, 40, 12);
    RIT128x96x4StringDraw("***Set...", 0, 50, 12);
    RIT128x96x4StringDraw("***Configured...", 0, 60, 12);

    for(i=0;i<10000;i++);
 
    while(1){
        if(ComparatorValueGet(COMP_BASE, 0)){
            RIT128x96x4StringDraw("HIGH", 0, 80, 12);
        }else{
            RIT128x96x4StringDraw("LOW ", 0, 80, 12);
        }
    
    }
}

Code:

    GPIOPinTypeComparator(GPIO_PORTB_BASE,GPIO_PIN_4);
    GPIOPadConfigSet(GPIO_PORTB_BASE, GPIO_PIN_4, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_ANALOG);