SD card code

/* ========================================
 *
 * The following firmware was developed by Cypress Semiconductor
 * This work is licensed under a Creative Commons Attribution 3.0 Unported License.
 *
 * http://creativecommons.org/licenses/by/3.0/deed.en_US
 *
 * You are free to:
 * -To Share — to copy, distribute and transmit the work
 * -To Remix — to adapt the work
 * -To make commercial use of the work
 *
 * ========================================
 */

#include <device.h>

uint32 i;
char * fnam;
uint32 siz;
uint8 no,fcnt,fre,j,bufnn;

// The main
void main()
{
    char   cardInfo;                            // Card information
    char   fp;                                  // File Pointer
    uint8  cnt;                                 // Card inserted state variables
    uint8  load = 2;                            // Card initialization variable
    char   data_r;                              // Data read from Card

    CyGlobalIntEnable;                          // Enable all global interrupts

    // Setup and initialize the SD Card
    do
    {
        SDCard_Start();                         // Initialize SPI Bus for communication
        SDCard_Select(SDCard_DISABLE);          // Select card

        cardInfo = 0;
        cnt = 0;
        while ( ! cardInfo )                    // Wait for card to communicate
        {
           cnt++;
           if(cnt == 0xFF) {cnt = 0;}
           cardInfo = SDCard_InitCard();
        }

        load = load - 1;
    }while(load > 0);                           // Stay in the loop till the card is initialized.

    fcnt = SDCard_GetFileCount();               // Get number of files on Card

    // Loop through all the existing files
    // in the SD Card, one by one
    // or skip is count = 0
    for (cnt = 0; cnt < fcnt; cnt++)
    {
        fnam = SDCard_GetFilename(cnt);         // Get the filename of the file with index value in "cnt"
    }

    // *****************************************
    // 1. Write File
    // *****************************************
    fp = SDCard_fopen("file1.txt", "w");        // Open a file with write mode access. If the file is not present, a new file is created.
    SDCard_fputcs("I appended this text", fp);  // Write a constant string into the file
    SDCard_fclose(fp);                          // Close file
    fp = SDCard_fopen("file_tmp.txt", "w");     // Open a file with write mode access. If the file is not present, a new file is created.
    SDCard_fputcs("This is a temp file.", fp);  // Write a constant string into the file
    SDCard_fclose(fp);                          // Close file

    // *****************************************
    // 2. Append File
    // *****************************************
    fp = SDCard_fopen("file2.txt", "w");        // Open a file with write mode access. If the file is not present, a new file is created.
    SDCard_fputcs("This is my 2nd file.", fp);  // Write a constant string into the file
    SDCard_fclose(fp);                          // Close file
    fp = SDCard_fopen("file2.txt", "a");        // Open the file with append mode access.
    SDCard_fputcs("I appended this text.", fp); // Write a constant string into the file
    SDCard_fclose(fp);                          // Close file

    // *****************************************
    // 3. Read Read
    // *****************************************
    fp = SDCard_fopen("file2.txt", "r");        // Open a file with readonly access.
    siz  = SDCard_GetFileSize(fp);              // Get the file size.
    SDCard_fseek(fp, 0);                        // Move to the offset-0, which is the beginning of file
    while(!SDCard_feof(fp))                     // Loop till end of file
    {
        data_r = SDCard_fgetc(fp);              // Read the character pointed by fp
    }
    SDCard_fclose(fp);                          // Close file

    // *****************************************
    // 4. Rename File
    // *****************************************
    SDCard_Rename("file1.txt", "file_ren.txt"); // Rename file1.txt to file_ren.txt

    // *****************************************
    // 5. Copy File
    // *****************************************
    SDCard_Copy("file_tmp.txt", "file_cpy.txt");// Copy the contents of file_tmp.txt to file_cpy.txt

    // *****************************************
    // 6. Delete File
    // *****************************************
    SDCard_Remove("file_tmp.txt");              // Delete file_tmp.txt

    SDCard_Select(SDCard_DISABLE);              // Deselect card
    SDCard_Stop();                              // Stop the communication interface

    while(1);                                   // The End
}

/* [] END OF FILE */