write .bmp on sd card by ip sd card controller

my code:

//==========================write image on sd card

void write_image(int number)

{

char i = number;

char h = 0;

bool create, hum ;

int x, y,j, c;

alt_up_sd_card_dev *device_reference = NULL;

int connected = 0;

device_reference = alt_up_sd_card_open_dev("/dev/SD_Card_0");

if (device_reference != NULL)

{

if ((connected == 0) && (alt_up_sd_card_is_Present()))

{

printf("Card connected.\n");

if (alt_up_sd_card_is_FAT16())

{

printf("FAT16 file system detected.\n");

}

else

{

printf("Unknown file system.\n");

}

connected = 1;

}

else if ((connected == 1) && (alt_up_sd_card_is_Present() == false))

{

printf("Card disconnected.\n");

connected = 0;

}

}