TM4C123GH6PGE: Writing on USB Pen drive

Part Number: TM4C123GH6PGE

Hello. 

EK_TM4C123GXL to DK-TM4C123G migration and modify

Why can not I write "Hello :)" in the Err1.txt file?

Please let me know what to do.

regards.

static int printFileStructure (void) {



    uint32_t ui32ItemCount;

    FRESULT fresult;
    static char *pcBuf;//[256]="Hello World";
    uint32_t ui32BytesWritten;


             //
            // Open the file by name that was determined above.  If the file exists
            // it will be opened, and if not it will be created.
            //
            fresult = f_open(&g_sFileObject, "Err1.txt", (FA_CREATE_NEW |FA_WRITE));
            if(fresult != FR_OK)
            {
                *(&pcBuf) ="Hello:)";
                f_write(&g_sFileObject, &pcBuf, 20, (UINT *)&ui32BytesWritten);
                return(0);
            }

            *(&pcBuf)="Hello:)"; 
           fresult = f_write(&g_sFileObject, &pcBuf, 20, (UINT *)&ui32BytesWritten);

    //

    // Open the current directory for access.

    //

    fresult = f_opendir(&g_sDirObject, g_cCwdBuf);

f_write reference location
- TivaWare_C_Series-2.1.4.178\third_party\fatfs\doc\en

create File in USB 

- Attach capture