BYTE buffer[100];   // file copy buffer

	FATFS fs;            // Work area (file system object) for logical drive
	f_mount(0, &fs);

	// ls /
	{
		char path[]="/\0";
		FILINFO finfo;
		DIR dirs;
		int i;

		if (f_opendir(&dirs, path) == FR_OK) 
		{
			i = strlen(path);
			while ((f_readdir(&dirs, &finfo) == FR_OK) && finfo.fname[0]) 
			{
				if (finfo.fattrib & AM_DIR) {
					uart_puts_P("Dir:  ");
				} else {
					uart_puts_P("File: ");
				}
				uart_puts(path);
				uart_putc('/');
				uart_puts(finfo.fname);
				uart_eol();
			}
		}
	}

	// End ls /

        // cat /00readme.txt
	{
		FIL fsrc;            // file objects
		FRESULT res;         // FatFs function common result code
		WORD br;             // File R/W count


		// Open source file
		res = f_open(&fsrc, "/00readme.txt", FA_OPEN_EXISTING | FA_READ);
		if(res==0)
		{

			for (;;) 
			{
				res = f_read(&fsrc, buffer, sizeof(buffer)+1, &br);
				if(br>0)
				{
					buffer[br]=0;
					uart_puts(buffer);
				}
				if (res || br == 0) break;      // error or eof
			}

			// Close file
			f_close(&fsrc);
		}
		else
		{
			uart_puts_P("File not found\r\n");
		}

	}

        // End cat /00readme.txt


	uart_eol();

        // create /yellow.txt
	{
		FIL fsrc;            // file objects
		FRESULT res;         // FatFs function common result code
		WORD bw;             // File R/W count


		// Open source file
		res = f_open(&fsrc, "/yellow.txt", FA_CREATE_ALWAYS | FA_WRITE);
		if(res==0)
		{
			strcpy(buffer,"Hullu Dies ist ein doller Test !!!!!\r\n");
			for (uint16_t i=0;i<1000;i++) 
			{
				res = f_write(&fsrc, buffer, strlen(buffer), &bw);
				if (res ) break;      // error 
			}

			// Close file
			f_close(&fsrc);
		}
		else
		{
			uart_puts_P("File not created\r\n");
		}

	}
	uart_puts_P("File created\r\n");

        // End cat /00readme.txt



	// Unregister a work area before discard it
	f_mount(0, NULL);