#define SD_CS               PORTGbits.RG9
            // Description: SD-SPI Chip Select TRIS bit
            #define SD_CS_TRIS          TRISGbits.TRISG9
            // Description: SD-SPI Card Detect Input bit
            #define SD_CD               0 //PORTGbits.RG0
            // Description: SD-SPI Card Detect TRIS bit
            #define SD_CD_TRIS          TRISBbits.TRISB0

            // Description: SD-SPI Write Protect Check Input bit
            #define SD_WE               0 //PORTGbits.RG1
            // Description: SD-SPI Write Protect Check TRIS bit
            #define SD_WE_TRIS          TRISBbits.TRISB1
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            // Description: The TRIS bit for the SCK pin
            #define SPICLOCK            TRISGbits.TRISG6
            // Description: The TRIS bit for the SDI pin
            #define SPIIN               TRISGbits.TRISG7
            // Description: The TRIS bit for the SDO pin
            #define SPIOUT              TRISGbits.TRISG8

char sendBuffer[] = "This is test string 1";
FSFILE * pointer;
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   while (!MDD_MediaDetect());

   // Initialize the library
   while (!FSInit());


   // Create a file
   pointer = FSfopen ("FILE1.TXT", "w");
    FSfwrite (sendBuffer, 1, 21, pointer);
FSfclose (pointer);