diff --git a/devel/sdcard/main.c b/devel/sdcard/main.c
index 9692f0a..11bac0a 100644
--- a/devel/sdcard/main.c
+++ b/devel/sdcard/main.c
@@ -3,126 +3,128 @@
 
 #include "lib/uart.h"
 #include "lib/stream.h"
-#include "lib/sd.h"
 #include "lib/sd_fat.h"
-#include "lib/sd_blockdev.h"
 
-void test_lowlevel()
-{
-	uart_puts_P(PSTR("*** SD CARD SPI TEST ***\r\n"));
 
-	if (!sd_init())
-	{
-		put_str_P(uart, PSTR("Failed to init."));
-		while (1);
-	}
+//void test_lowlevel()
+//{
+//	uart_puts_P(PSTR("*** SD CARD SPI TEST ***\r\n"));
 
-	uint8_t text[512];
+//	if (!sd_init())
+//	{
+//		put_str_P(uart, PSTR("Failed to init."));
+//		while (1);
+//	}
 
+//	uint8_t text[512];
 
-	put_str_P(uart, PSTR("\r\nReading...\r\n"));
-	if (sd_read(0, 0, text, 0, 512))
-	{
-		put_bytes(uart, text, 512);
-		put_nl(uart);
-		put_nl(uart);
 
-		for (uint8_t i = 0; i < 60; i++)
-		{
-			text[i] = ('A' + i);
-		}
-
-		put_str_P(uart, PSTR("\r\nWriting...\r\n"));
-		sd_write(1, text);
-		put_str_P(uart, PSTR("\r\nWrite done.\r\n"));
-
-		for (uint16_t i = 0; i < 512; i++)
-		{
-			text[i] = 0;
-		}
-
-		if (sd_read(1, 0, text, 0, 512))
-		{
-			put_str_P(uart, PSTR("\r\nWritten, result: \r\n"));
-			put_bytes(uart, text, 512);
-			put_nl(uart);
-			put_nl(uart);
-		}
-		else
-		{
-			put_str_P(uart, PSTR("\r\nRead failed.\r\n"));
-		}
-	}
-	else
-	{
-		put_str_P(uart, PSTR("Failed to read.\r\n"));
-		while (1);
-	}
-}
+//	put_str_P(uart, PSTR("\r\nReading...\r\n"));
+//	if (sd_read(0, 0, text, 0, 512))
+//	{
+//		put_bytes(uart, text, 512);
+//		put_nl(uart);
+//		put_nl(uart);
+
+//		for (uint8_t i = 0; i < 60; i++)
+//		{
+//			text[i] = ('A' + i);
+//		}
+
+//		put_str_P(uart, PSTR("\r\nWriting...\r\n"));
+//		sd_write(1, text);
+//		put_str_P(uart, PSTR("\r\nWrite done.\r\n"));
+
+//		for (uint16_t i = 0; i < 512; i++)
+//		{
+//			text[i] = 0;
+//		}
+
+//		if (sd_read(1, 0, text, 0, 512))
+//		{
+//			put_str_P(uart, PSTR("\r\nWritten, result: \r\n"));
+//			put_bytes(uart, text, 512);
+//			put_nl(uart);
+//			put_nl(uart);
+//		}
+//		else
+//		{
+//			put_str_P(uart, PSTR("\r\nRead failed.\r\n"));
+//		}
+//	}
+//	else
+//	{
+//		put_str_P(uart, PSTR("Failed to read.\r\n"));
+//		while (1);
+//	}
+//}
+
+
+//void try_reading_dirs(FFILE* f )
+//{
+//	char buf[200];
+
+//	do
+//	{
+//		if (!ff_is_regular(f)) continue;
+
+//		if (f->type == FT_SUBDIR)
+//		{
+//			vt_color_fg(VT_MAGENTA);
+//			uart_puts_P(PSTR("\r\n--- DIRECTORY: "));
+//			uart_puts(ff_dispname(f, buf));
+//			uart_puts_P(PSTR(" ---\r\n"));
+//			vt_color_reset();
+
+//			FSAVEPOS p = ff_savepos(f);
+
+//			if (ff_opendir(f))
+//			{
+//				do
+//				{
+//					if (!ff_is_regular(f)) continue;
+
+//					vt_color_fg(VT_GREEN);
+//					uart_puts_P(PSTR(">> --- File: "));
+//					uart_puts(ff_dispname(f, buf));
+//					uart_puts_P(PSTR(" ---\r\n"));
+//					vt_color_reset();
+//				}
+//				while (ff_next(f));
+//			}
+
+//			ff_reopen(f, &p);
+//		}
+//		else
+//		{
+//			vt_color_fg(VT_YELLOW);
+//			uart_puts_P(PSTR("--- File: "));
+//			uart_puts(ff_dispname(f, buf));
+//			uart_puts_P(PSTR(" ---\r\n"));
+//			vt_color_reset();
+
+//			uint16_t len = 0;
+//			if ((len = ff_read(f, buf, 199)))
+//			{
+//				buf[len] = 0;
+//				uart_puts(buf);
+//				put_nl(uart);
+//			}
+//			else
+//			{
+//				uart_puts_P(PSTR("COULD NOT READ.\n"));
+//			}
+//		}
+//	}
+//	while (ff_next(f));
+//}
 
 
-void try_reading_dirs(FAT16_FILE* f )
-{
-	char buf[200];
 
-	do
-	{
-		if (!fat16_is_regular(f)) continue;
-
-		if (f->type == FT_SUBDIR)
-		{
-			vt_color_fg(VT_MAGENTA);
-			uart_puts_P(PSTR("\r\n--- DIRECTORY: "));
-			uart_puts(fat16_dispname(f, buf));
-			uart_puts_P(PSTR(" ---\r\n"));
-			vt_color_reset();
-
-			FSAVEPOS p = fat16_savepos(f);
-
-			if (fat16_opendir(f))
-			{
-				do
-				{
-					if (!fat16_is_regular(f)) continue;
-
-					vt_color_fg(VT_GREEN);
-					uart_puts_P(PSTR(">> --- File: "));
-					uart_puts(fat16_dispname(f, buf));
-					uart_puts_P(PSTR(" ---\r\n"));
-					vt_color_reset();
-				}
-				while (fat16_next(f));
-			}
-
-			fat16_reopen(f, &p);
-		}
-		else
-		{
-			vt_color_fg(VT_YELLOW);
-			uart_puts_P(PSTR("--- File: "));
-			uart_puts(fat16_dispname(f, buf));
-			uart_puts_P(PSTR(" ---\r\n"));
-			vt_color_reset();
-
-			uint16_t len = 0;
-			if ((len = fat16_read(f, buf, 199)))
-			{
-				buf[len] = 0;
-				uart_puts(buf);
-				put_nl(uart);
-			}
-			else
-			{
-				uart_puts_P(PSTR("COULD NOT READ.\n"));
-			}
-		}
-	}
-	while (fat16_next(f));
-}
 
 // Init a file pointer */
-FAT16_FILE _f;
-FAT16_FILE* f = &_f;
+FFILE _f;
+FFILE* f = &_f;
 
 void main()
 {
@@ -135,7 +137,7 @@ void main()
 	vt_color_reset();
 	vt_attr_reset();
 
-	if (!(sdfat_init()))
+	if (!(sdf_init()))
 	{
 		uart_puts_P(PSTR("Failed to init.\r\n"));
 		while (1);
@@ -143,32 +145,37 @@ void main()
 
 	uart_puts_P(PSTR("SD card with FAT16 inited.\r\n"));
 
+	sdf_root(f);
+
+//	do
+//	{
+//		ff_delete(f);
+//	}
+//	while (ff_next(f));
 
+	if (!ff_open(f, "LOG13.TXT"))
+	{
+		ff_newfile(f, "LOG13.TXT");
+	}
 
-	// Read and print disk label
-	char lbl[16];
-	sdfat_disk_label(lbl);
-	put_str(uart, lbl);
-	put_nl(uart);
+	ff_seek(f, f->size);
 
-	sdfat_root(f);
+	ff_write_str(f, "\r\n--- START OF SESSION ---\n");
 
-	try_reading_dirs(f);
+	// Change size beforehand, to make write faster
+	sdf_open_stream(f);
 
-//	if (fat16_find(f, "TESTFIL2.TXT"))
-//	{
-//		fat16_seek(f, f->size);
-//		fat16_write(f, "ONE MORE THING.\n", 16);
-//		sdfat_flush();
+	for (uint8_t i = 0; i < 0xFF; i++)
+	{
+		put_u8(sdf_stream, i);
+		put_nl(sdf_stream);
+		put_u8(uart, i);
+		put_nl(uart);
+	}
 
-//		uart_puts_P(PSTR("Write OK!\r\n"));
-//	}
-//	else
-//	{
-//		uart_puts_P(PSTR("Failed to open file.\r\n"));
-//		while (1);
-//	}
+	ff_flush_file(f);
 
+	uart_puts("Done.\n");
 
 	while (1);
 }