/*
 *
 * Toggles led on pin 1 on port N
 *
 * Already set build options (no need to change anything):
 * Stack size set to 1024 byte
 * Heap size disabled - No malloc()
 * No code optimization
 * Strict floating point interrupt behaviour
 * Hardware floating point unit activated
 *
 */

#include <stdbool.h> /*driverlib header requires stdbool.h to be included a first header file before any driverlib header*/
#include <stdint.h>
#include <driverlib/gpio.h>
#include <driverlib/pin_map.h>/*supplies GPIO_PIN_x*/
#include <driverlib/sysctl.h>
#include <inc/hw_memmap.h>/*supplies GPIO_PORTx_BASE*/

/*Controller is initially clocked with 16MHz*/
/* !! Changing this define does not change clock speed !! */
#define F_CPU 16000000

void main (void) {

    uint32_t ui32Strength;
    uint32_t ui32PinType;
    uint8_t ui8val = 0;
    uint32_t ui32Loop = 0;


    /*activate gpio port n for d1 - d2*/
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPION);
    /* activate gpio port f for d3 - d4 */
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
    /* activate gpio port j for button */
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOJ);

    /*configure GPIO_PIN_1 on port N as std pin D1*/
    GPIOPadConfigGet(GPIO_PORTN_BASE, GPIO_PIN_1, &ui32Strength, &ui32PinType);
    GPIOPadConfigSet(GPIO_PORTN_BASE, GPIO_PIN_1,ui32Strength,GPIO_PIN_TYPE_STD);

    /*configure GPIO_PIN_1 on port N as std pin D2*/
    GPIOPadConfigGet(GPIO_PORTN_BASE, GPIO_PIN_0, &ui32Strength, &ui32PinType);
    GPIOPadConfigSet(GPIO_PORTN_BASE, GPIO_PIN_0,ui32Strength,GPIO_PIN_TYPE_STD);

    /*configure GPIO_PIN_1 on port N as std pin D3*/
    GPIOPadConfigGet(GPIO_PORTF_AHB_BASE, GPIO_PIN_4, &ui32Strength, &ui32PinType);
    GPIOPadConfigSet(GPIO_PORTF_AHB_BASE, GPIO_PIN_4,ui32Strength,GPIO_PIN_TYPE_STD);


    /*configure GPIO_PIN_1 on port N as std pin D4*/
    GPIOPadConfigGet(GPIO_PORTF_AHB_BASE, GPIO_PIN_0, &ui32Strength, &ui32PinType);
    GPIOPadConfigSet(GPIO_PORTF_AHB_BASE, GPIO_PIN_0,ui32Strength,GPIO_PIN_TYPE_STD);

    /* configure GPIO_PIN_0 on port J as button */
    GPIOPadConfigGet(GPIO_PORTJ_BASE, GPIO_PIN_0, &ui32Strength, &ui32PinType);
    GPIOPadConfigSet(GPIO_PORTJ_BASE, GPIO_PIN_0,ui32Strength,GPIO_PIN_TYPE_STD_WPU);

    /*set pin 1 of gpio port n to output*/
    //GPIOPinTypeGPIOOutput(GPIO_PORTJ_BASE,GPIO_PIN_0);
    GPIOPinWrite (GPIO_PORTJ_BASE, GPIO_PIN_0, 0x00000000);

    /* set pin 0 of gpio port j because button */
    //GPIOPinTypeGPIOOutput(GPIO_PORTJ_AHB_BASE,GPIO_PIN_0);

    for(;;) {
        if(GPIOPinRead(GPIO_PORTJ_BASE,GPIO_PIN_0) == 1) {
                GPIOPinTypeGPIOOutput(GPIO_PORTF_AHB_BASE,GPIO_PIN_4);
                GPIOPinWrite(GPIO_PORTF_AHB_BASE, GPIO_PIN_4, 0x00000010);
        }
        //for(ui32Loop = 0; ui32Loop < 400000; ui32Loop++){}
    }

    //GPIO_PORTF_AHB_BASE = GPIO_PORTJ_AHB_BASE;

    //Digital Enable for PortJ USR Switch1
        //GPIO_PORTJ_AHB_DEN_R = 0x01;

        //Enable Pull Up for PortJ USR Switch1
        //GPIO_PORTJ_AHB_PUR_R = 0x01;

    //for(;;) {
      //  ui8val = ui8val ^ 2;/*toggle bit 1 in variable val*/
        /*write value of val to pin 1 of port n*/
        //GPIOPinWrite (GPIO_PORTF_AHB_BASE, GPIO_PIN_0, ui8val);
        // for(ui32Loop = 0; ui32Loop < 400000; ui32Loop++){}
       // SysCtlDelay(F_CPU/6);  //approx 0,5 s

    //}

}