lpc1768FileWrite.c

#include <lpc17xx.h>
#include "sdcard.h"
#include "uart.h"
#include "fat32.h"
#include "stdutils.h"
#include "delay.h"
#include "spi.h"     

int main()
{
    uint8_t returnStatus,sdcardType,i=0;
    fileConfig_st *srcFilePtr;
    char str[]={"Hello World, Writing data to SD CARD using 1768"};

    SystemInit();
    UART0_Init(9600);
    returnStatus = SD_Init(&sdcardType);

    if(returnStatus)
    {
        if(returnStatus == SDCARD_NOT_DETECTED)
        {
            UART0_TxString("\n\r SD card not detected..");
        }
        else if(returnStatus == SDCARD_INIT_FAILED)
        {
            UART0_TxString("\n\r Card Initialization failed..");
        }
        else if(returnStatus == SDCARD_FAT_INVALID)
        {
            UART0_TxString("\n\r Invalid Fat filesystem");
        }
        while(1);
    }
    else
    {
        UART0_TxString("\n\rSD Card Detected!");
    }

    srcFilePtr = FILE_Open("test.txt",WRITE,&returnStatus);
    
    if(srcFilePtr == 0)
    {
        UART0_TxString("\n\rFile Opening Failed");
    }
    else
    {
        UART0_TxString("\n\rWriting Data to file");
        while(str[i])
        {
           FILE_PutCh(srcFilePtr,str[i++]);
        }
        FILE_PutCh(srcFilePtr,EOF);
        UART0_TxString("\n\rData saved to file, closing the file.");
        FILE_Close(srcFilePtr);
    }
    
    while(1);
    
}// End of main

Hello Sir,

Great work. This code is working as expected.
But there are some issues observed after every cluster (512*64 bytes) complete. If my writing buffer is crossing the cluster, the garbage is stored in every cluster change.

How to clear the writing garbage to the sd card at cluster change ?
Also this code works better for writing only single file. Multiple files cause corrupting the sd card.