lv6_vga.c

#include "xtft.h"
#include "xparameters.h"

//***********************************************TO DO 1*************************************************//
//*******Definirati konstantu TFT_FRAME_ADDR i postaviti ju na Base Address Micron RAM memorije**********//
#define TFT_FRAME_ADDR XPAR_MICRON_RAM_MEM0_BASEADDR

//******************************************************************************************************//

//***********************************************TO DO 6*************************************************//
//*******Definirati konstantu TFT_FRAME_ADDR i postaviti ju na Base Address Micron RAM memorije**********//
#define RED_COLOR 0x00FF0000
#define GREEN_COLOR 0x0000FF00
#define BLUE_COLOR 0x000000FF
#define FGCOLOR_VALUE 0x00000000
#define BGCOLOR_VALUE 0x00FFFFFF





//******************************************************************************************************//

/*************************** Prototipi funkcija ******************************/
int TftInitialize(u32 TftDeviceId);
int TftWriteString(XTft *InstancePtr, const u8 *CharValue);

static XTft TftInstance;

int main()
{
    int Status;
    u8 Znak;

    Status = TftInitialize(XPAR_VGA_CONTROLLER_DEVICE_ID);
    if ( Status != XST_SUCCESS) {
        return XST_FAILURE;
    }

    //***********************************************TO DO 5*************************************************//
    //*******Oèistiti ekran, postaviti boju pozadine i boju slova i ispisati nekoliko znakova na ekran*******//
    XTft_ClearScreen(&TftInstance);
    XTft_SetColor(&TftInstance, FGCOLOR_VALUE, BGCOLOR_VALUE);

    XTft_Write(&TftInstance, 16);


















    //*******************************************************************************************************//

    //***********************************************TO DO 7*************************************************//
    //****************************Oèistiti ekran, ispisati proizvoljan string na ekran***********************//
    XTft_ClearScreen(&TftInstance);
    TftWriteString(&TftInstance, "");


    //*******************************************************************************************************//

    //***********************************************TO DO 8*************************************************//
    //*****************************Oèistiti ekran, nacrtati 4 vodoravne linije ekranu************************//










    //*******************************************************************************************************//

    return XST_SUCCESS;
}

int TftInitialize(u32 TftDeviceId){

    int Status;
    XTft_Config *TftConfigPtr;

    //***********************************************TO DO 2*************************************************//
    //******Dohvatiti konfiguraciju VGA suèelja, povratnu vrijednost spremiti u varijablu TftConfigPtr*******//
    TftConfigPtr = XTft_LookupConfig(TftDeviceId);

    //******************************************************************************************************//

    if (TftConfigPtr == (XTft_Config *)NULL) {
        return XST_FAILURE;
    }

    //***********************************************TO DO 3*************************************************//
    //*************Inicijalizirati VGA kontroler, povratnu vrijednost spremiti u varijablu Status************//
    Status = XTft_CfgInitialize(&TftInstance, TftConfigPtr, TftConfigPtr->BaseAddress);

    //*******************************************************************************************************//

    if (Status != XST_SUCCESS) {
        return XST_FAILURE;
    }

    //Èekanje da Vsync status bit bude postavljen u 1 kako bi bili sigurni da je
    //prethodni frame prikazan
    while (XTft_GetVsyncStatus(&TftInstance) !=
                    XTFT_IESR_VADDRLATCH_STATUS_MASK);


    //***********************************************TO DO 4*************************************************//
    //*********************************Postaviti base adresu Video Memorije**********************************//
    XTft_SetFrameBaseAddr(&TftInstance, TFT_FRAME_ADDR);

    //*******************************************************************************************************//

    return XST_SUCCESS;
}

//funkcija piše znak po znak na ekran sve dok ne doðe do null znaka ili kraja stringa
int TftWriteString(XTft *InstancePtr, const u8 *CharValue)
{

    while (*CharValue != 0) {
        XTft_Write(InstancePtr, *CharValue);
        CharValue++;
    }

    return XST_SUCCESS;
}