diff --git a/build/tests/fatfs/nand_formatter/ARM7/Makefile b/build/tests/fatfs/nand_formatter/ARM7/Makefile
new file mode 100644
index 0000000..2ea818c
--- /dev/null
+++ b/build/tests/fatfs/nand_formatter/ARM7/Makefile
@@ -0,0 +1,62 @@
+#! make -f
+#----------------------------------------------------------------------------
+# Project:  TwlSDK - CAMERA - demos - camera-1
+# File:     Makefile
+#
+# Copyright 2007 Nintendo.  All rights reserved.
+#
+# These coded instructions, statements, and computer programs contain
+# proprietary information of Nintendo of America Inc. and/or Nintendo
+# Company Ltd., and are protected by Federal copyright law.  They may
+# not be disclosed to third parties or copied or duplicated in any form,
+# in whole or in part, without the prior written consent of Nintendo.
+#
+# $Log: $
+# $NoKeywords: $
+#----------------------------------------------------------------------------
+
+SUBDIRS		=
+
+LCFILE_SPEC	=	main.lsf
+
+#----------------------------------------------------------------------------
+
+#TWL_CODEGEN   =       THUMB
+TWL_PROC      =       ARM7
+
+TARGET_BIN	=	main.axf
+
+SRCS		=	main.c
+
+INCDIR      += $(TWLSDK_ROOT)/include/twl \
+               $(TWLSDK_ROOT)/include/twl/devices/sdmc/ARM7 \
+               $(TWLSDK_ROOT)/include/twl/fatfs/ARM7 \
+
+LLIBRARY_DIRS = $(TWLSDK_ROOT)/lib/ARM-BB/Release
+LLIBRARIES = libfatfs_sp.twl.a \
+             libsd_sp.twl.a \
+             libcs_sp.twl.a \
+
+#SRCDIR		=	# using default
+#LCFILE		=	# using default
+
+include	$(TWLSDK_ROOT)/build/buildtools/commondefs
+
+
+#----------------------------------------------------------------------------
+
+do-build:		$(TARGETS)
+
+# .sbin
+#$(BINDIR)/$(TARGET_BIN_BASENAME).sbin : $(BINDIR)/$(TARGET_BIN_BASENAME).axf
+	objcopy -I elf32-little -O binary $(BINDIR)/$(TARGET_BIN_BASENAME).axf $(BINDIR)/$(TARGET_BIN_BASENAME).sbin
+
+
+include	$(TWLSDK_ROOT)/build/buildtools/modulerules
+
+
+
+
+
+
+#===== End of Makefile =====
diff --git a/build/tests/fatfs/nand_formatter/ARM7/main.lsf b/build/tests/fatfs/nand_formatter/ARM7/main.lsf
new file mode 100644
index 0000000..0c8cdcc
--- /dev/null
+++ b/build/tests/fatfs/nand_formatter/ARM7/main.lsf
@@ -0,0 +1,40 @@
+#----------------------------------------------------------------------------
+# Project:  TwlSDK - include
+# File:     ARM7-BB.lsf
+#
+# Copyright 2007 Nintendo.  All rights reserved.
+#
+# These coded insructions, statements, and computer programs contain
+# proprietary information of Nintendo of America Inc. and/or Nintendo
+# Company Ltd., and are protected by Federal copyright law.  They may
+# not be disclosed to third parties or copied or duplicated in any form,
+# in whole or in part, without the prior written consent of Nintendo.
+#
+# $Log: $
+# $NoKeywords: $
+#----------------------------------------------------------------------------
+#
+#  Nitro LCF SPEC FILE
+#
+
+Static $(TARGET_NAME)
+{
+	Address		0x02010000
+	Library		crt0.o
+	StackSize	1024 512
+}
+
+#Objects on MAIN RAM	# nothing for elf2bin
+#Autoload MAIN
+#{
+#	Address		0x027e0000
+#	Library		
+#}
+
+Autoload MAIN
+{
+	Address		0x02020000
+	Object		$(OBJS_STATIC)
+	Library		$(LLIBS) $(GLIBS) $(CW_LIBS)
+	Object		* (.wram)
+}
diff --git a/build/tests/fatfs/nand_formatter/ARM7/src/main.c b/build/tests/fatfs/nand_formatter/ARM7/src/main.c
new file mode 100644
index 0000000..34edef3
--- /dev/null
+++ b/build/tests/fatfs/nand_formatter/ARM7/src/main.c
@@ -0,0 +1,490 @@
+/*---------------------------------------------------------------------------*
+  Project:  TwlSDK - nand_formatter_kmc
+  File:     main.c
+
+  Copyright 2007 Nintendo.  All rights reserved.
+
+  These coded instructions, statements, and computer programs contain
+  proprietary information of Nintendo of America Inc. and/or Nintendo
+  Company Ltd., and are protected by Federal copyright law.  They may
+  not be disclosed to third parties or copied or duplicated in any form,
+  in whole or in part, without the prior written consent of Nintendo.
+
+  $Log: main.c,v $
+  $NoKeywords: $
+ *---------------------------------------------------------------------------*/
+
+#include    <twl_sp.h>
+#include    <twl/cs/cs.h>
+#include    <twl/vlink.h>
+#include    <twl/fatfs/ARM7/rtfs.h>
+#include    <twl/devices/sdmc/ARM7/sdmc.h>
+
+#define DBG_PRINTF OS_TPrintf
+#define DBG_CHAR OS_PutChar
+#define kmc_getchar() ((char)vlink_dos_get_console())
+#define kmc_putchar(x) vlink_dos_put_console((char)(x))
+
+
+
+
+
+extern void nandSetFormatRequest( u16 partition_num, u32* partition_sectors);
+
+
+/*---------------------------------------------------------------------------*
+    定数定義
+ *---------------------------------------------------------------------------*/
+#define PRINTDEBUG  OS_TPrintf
+
+//容量
+#define RAW_PARTITION_MBYTES    16
+#define FAT0_PARTITION_MBYTES   32
+#define FAT1_PARTITION_MBYTES   32
+#define FAT2_PARTITION_MBYTES   32
+
+
+//配列partition_MB_sizeのインデックス
+#define INDEX_RAW_PARTITION    0
+#define INDEX_FAT0_PARTITION   1
+#define INDEX_FAT1_PARTITION   2
+#define INDEX_FAT2_PARTITION   3
+#define INDEX_FAT3_PARTITION   4
+
+
+/*---------------------------------------------------------------------------*
+    内部関数定義
+ *---------------------------------------------------------------------------*/
+static OSHeapHandle InitializeAllocateSystem(void);
+static void VBlankIntr(void);
+
+
+/*---------------------------------------------------------------------------*
+
+ *---------------------------------------------------------------------------*/
+static u16 path_str[512/sizeof(u16)]; //ロングファイル名
+
+
+static BOOL getchar_yes_no_prompt(void)
+{
+  char c;
+  while( 1 ) {
+    c = kmc_getchar();
+    kmc_putchar(c);
+    if( c == 'y' ) {
+      return TRUE;
+    }
+    else if(  c == 'n' ) {
+      return FALSE;
+    }
+    else if(  c == 'q' ) {
+      DBG_PRINTF("\nEnter infinite loop\n");
+      while( 1 ) { ; }
+    }
+    else {
+      DBG_PRINTF("\nInput y or n\n");
+    }
+  }
+}
+
+static int pow10( int count)
+{
+  int i, result;
+
+  result = 1;
+  for( i=0; i<count; i++) {
+    result *= 10;
+  }
+  return result;
+}
+
+/*入力された数字(3桁まで)を返す*/
+static int get_number_prompt( void)
+{
+  int i = 0;
+  char c;
+  int j, keta, pow_num, result_num;
+  int size_num[3]; //3桁MBytes
+
+  while( (c = kmc_getchar()) != '\r') {
+      if( (c >= '0')&&(c <= '9')) {
+          kmc_putchar( c);
+          size_num[i++] = ((int)c) % ((int)'0');
+          if( i==3) { break;}
+      }
+      if( c == '\b') {
+          if( i != 0) { i--;}
+          kmc_putchar( c);
+      }
+  }
+  keta = i;
+
+  result_num = 0;
+  for( j=0; j<keta; j++) {
+      pow_num = pow10( keta-i);
+      i--;
+      result_num += (size_num[i] * pow_num);
+  }
+  return( result_num);
+}
+
+
+/*---------------------------------------------------------------------------*
+  Name:         TwlSpMain
+
+  Description:  Initialize and do main
+
+  Arguments:    None.
+
+  Returns:      None.
+ *---------------------------------------------------------------------------*/
+void TwlSpMain(void)
+{
+    u16 i;
+    OSHeapHandle   heapHandle;
+    SDMC_ERR_CODE  result;
+    SdmcResultInfo SdResult;
+    /**/
+    byte TEST_FILENAME[] = "\\nand_p0_test.bin";
+    byte VOLUME_LABEL[]  = "F:";
+    u16 nand_fat_partition_num; //FATパーティション数
+    u32 partition_MB_size[5];   //パーティション毎の容量
+    /**/
+    u32 block_buf[512/4];
+    u32 arm9_ofs, arm9_size, arm7_ofs, arm7_size;
+    u32 nand_firm_size = 0;
+    /**/
+    PCFD           fd;
+    CHKDISK_STATS dstat;
+    DEV_GEOMETRY  geometry;
+
+
+    // OS初期化
+    OS_Init();
+    OS_InitDebugLED();
+
+    OS_InitTick();
+    OS_InitAlarm();
+
+    // PXI初期化、ARM9と同期
+    PXI_Init();
+
+    // ヒープ領域設定
+    heapHandle = InitializeAllocateSystem();
+
+
+    // ボタン入力サーチ初期化
+    (void)PAD_InitXYButton();
+
+    // 割込み許可
+    (void)OS_SetIrqFunction(OS_IE_V_BLANK, VBlankIntr);
+    (void)OS_EnableIrqMask(OS_IE_V_BLANK);
+    (void)GX_VBlankIntr(TRUE);
+    (void)OS_EnableIrq();
+    (void)OS_EnableInterrupts();
+
+    OS_InitThread();
+
+    /*----- RTFSが使うヒープ作成 -----*/
+    {
+      OSHeapHandle hh;
+      OS_SetSubPrivArenaLo( OS_InitAlloc( OS_ARENA_MAIN_SUBPRIV, OS_GetSubPrivArenaLo(), OS_GetSubPrivArenaHi(), 1));
+      hh = OS_CreateHeap( OS_ARENA_MAIN_SUBPRIV, OS_GetSubPrivArenaLo(), OS_GetSubPrivArenaHi());
+      OS_SetCurrentHeap( OS_ARENA_MAIN_SUBPRIV, hh);
+      if( rtfs_init() == FALSE) {
+        PRINTDEBUG( "rtfs_init failed.\n");
+      }
+    }
+    /*--------------------------------*/
+
+    /*SDドライバ初期化*/
+    result = sdmcInit( SDMC_NOUSE_DMA, NULL, NULL);
+    if( result != SDMC_NORMAL) {
+        PRINTDEBUG( "sdmcInit : failed\n");
+        while( 1) {};
+    }
+
+#if 1
+    nand_fat_partition_num = 1;
+    while( 1) {
+
+        partition_MB_size[INDEX_RAW_PARTITION] = RAW_PARTITION_MBYTES;
+
+        partition_MB_size[INDEX_FAT0_PARTITION] = FAT0_PARTITION_MBYTES;
+        if( partition_MB_size[INDEX_FAT0_PARTITION] == 0) {
+            break;
+        }
+        nand_fat_partition_num++;
+
+        partition_MB_size[INDEX_FAT1_PARTITION] = FAT1_PARTITION_MBYTES;
+        if( partition_MB_size[INDEX_FAT1_PARTITION] == 0) {
+            break;
+        }
+        nand_fat_partition_num++;
+
+        partition_MB_size[INDEX_FAT2_PARTITION] = FAT2_PARTITION_MBYTES;
+        if( partition_MB_size[INDEX_FAT2_PARTITION] == 0) {
+            break;
+        }
+        nand_fat_partition_num++;
+
+//        DBG_PRINTF( "FAT PARTITION 3 SIZE?(MBytes) -> ");
+//        partition_MB_size[INDEX_FAT3_PARTITION] = get_number_prompt();
+//        DBG_PRINTF( "  (%d MBytes)\n\n", partition_MB_size[INDEX_FAT3_PARTITION]);
+        break;
+    }
+#endif
+//    DBG_PRINTF( "%d FAT Partitions.\n", nand_fat_partition_num);
+
+
+    /*----- nandfirmチェック -----*/
+//    pc_raw_read( 5, (byte*)block_buf, 1, 1, TRUE);
+    nandRtfsIo( 5, 1, (byte*)block_buf, 1, TRUE);
+    arm9_ofs  = *(u32*)(((u8*)block_buf)+0x20);
+    arm9_size = *(u32*)(((u8*)block_buf)+0x2C);
+    arm7_ofs  = *(u32*)(((u8*)block_buf)+0x30);
+    arm7_size = *(u32*)(((u8*)block_buf)+0x3C);
+
+    if (arm9_ofs == 0x400 || arm7_ofs == 0x400) // simple image
+    {
+        /*
+            0x000 +-------------------+
+                  | MBR               |
+            0x200 +-------------------+
+                  | Header (genuine)  |
+            0x400 +-------------------+ <- arm9_ofs or arm7_ofs by Header (genuine)
+                  | ARM7/ARM9 IMAGE   |
+          I+0x400 +-------------------+ <- nand_firm_size
+        */
+        nand_firm_size =  (arm9_ofs < arm7_ofs ? arm7_ofs + arm7_size : arm9_ofs + arm9_size);
+    }
+    if (arm9_ofs == 0x800 || arm7_ofs == 0x800) // double header image
+    {
+        /*
+            0x000 +-------------------+
+                  | MBR               |
+            0x200 +-------------------+
+                  | Header (genuine)  |
+            0x400 +-------------------+
+                  | Header (original) |
+            0x600 +-------------------+
+                  | Header (mirrored) |
+            0x800 +-------------------+ <- arm9_ofs or arm7_ofs by Header (genuine)
+                  | ARM7/ARM9 IMAGE   |
+                  |     + reserved    |
+          I+0x800 +-------------------+
+                  | Header (original) |
+          I+0xA00 +-------------------+
+                  | Header (mirrored) |
+          I+0xC00 +-------------------+ <- arm9_ofs or arm7_ofs by Header (mirroed)
+                  | reserved for      |
+                  |   ARM7/ARM9 IMAGE |
+        2*I+0xC00 +-------------------+ <- nand_firm_size
+        */
+        u32 arm9_orig = arm9_ofs;
+        nandRtfsIo( 5, 3, (byte*)block_buf, 1, TRUE);   // get header for mirrored image
+        arm9_ofs = *(u32*)(((u8*)block_buf)+0x20);
+        arm7_ofs = *(u32*)(((u8*)block_buf)+0x30);
+        nand_firm_size = (arm9_ofs - arm9_orig) * 2 + 0x400;
+    }
+    if (nand_firm_size)
+    {
+        DBG_PRINTF( "nandfirm found. (size:0x%x bytes)\n", nand_firm_size);
+        nand_firm_size = (nand_firm_size / 1024 / 1024) +
+                         (((nand_firm_size % (1024*1024)) != 0)? 1:0);
+//        DBG_PRINTF( "firm %dMB, raw %dMB\n", nand_firm_size, partition_MB_size[INDEX_RAW_PARTITION]);
+
+        if( nand_firm_size > partition_MB_size[INDEX_RAW_PARTITION]) {
+            partition_MB_size[INDEX_RAW_PARTITION] = nand_firm_size;
+            /*RAWサイズを変えたサイン*/
+            OS_SetDebugLED(0x0F);
+            goto NAND_FLASH_FORMAT_START;
+        }
+    }else{
+//        DBG_PRINTF( "nandfirm is not found.\n");
+    }
+
+NAND_FLASH_FORMAT_START:
+    /*------------------------------*/
+
+
+    /*--- パーティション構成をセクタ単位にしてライブラリに要求 ---*/
+    for( i=0; i<5; i++) {
+        partition_MB_size[i] *= ((1024 * 1024) / 512);
+//        PRINTDEBUG( "p%d : %d\n", i, partition_MB_size[i]);
+    }
+    nandSetFormatRequest( nand_fat_partition_num, partition_MB_size);
+    /*------------------------------------------------------------*/
+
+    /*マウント*/
+    if( nandRtfsAttach( 5, 0) == FALSE) {  //nandパーティション0をFドライブにする
+//        PRINTDEBUG( "nandRtfsAttach failed.\n");
+        goto NAND_FLASH_FORMAT_END;
+    }else{
+        if( nandRtfsAttach( 5, 0) == FALSE) {
+        }else{
+//            PRINTDEBUG( "nandRtfsAttach error!.\n");
+            goto NAND_FLASH_FORMAT_END;
+        }
+    }
+
+    CS_Sjis2Unicode( path_str, "F:");
+    if( !rtfs_pc_set_default_drive( (unsigned char*)path_str)) {
+//        PRINTDEBUG( "pc_set_default_drive failed\n");
+        goto NAND_FLASH_FORMAT_END;
+    }
+
+
+    /**/
+//    PRINTDEBUG( "pc_check_disk start. please wait.\n");
+//    pc_check_disk( (byte*)"F:", &dstat, 0, 1, 1);
+//    PRINTDEBUG( "pc_check_disk end.\n");
+
+
+    /*--- MBR書き込み、パーティション0フォーマット ---*/
+    if( !rtfs_pc_get_media_parms( (byte*)path_str, &geometry)) {
+//        PRINTDEBUG( "Invalid parameter. (size over)\n");
+        goto NAND_FLASH_FORMAT_END;
+    }
+
+    /**/
+    if( !pc_format_media( (byte*)path_str, &geometry)) {
+//        PRINTDEBUG( "pc_format_media failed\n");
+        goto NAND_FLASH_FORMAT_END;
+    }
+//    PRINTDEBUG( "build MBR success.\n");
+
+    /*ボリュームフォーマット*/
+    if( !pc_format_volume( (byte*)path_str, &geometry)) {
+//        PRINTDEBUG( "pc_format_volume (p0) failed\n");
+        goto NAND_FLASH_FORMAT_END;
+    }
+//    PRINTDEBUG( "format FAT partition 0 success.\n");
+    /*-------------------------------------------------*/
+
+
+
+    /*マウント(F:p0, G:p1, H:p2, I:p3)*/
+    for( i=1; i<nand_fat_partition_num; i++) {
+        if( nandRtfsAttach( (5+i), i) == FALSE) {
+//            PRINTDEBUG( "nandRtfsAttach failed.\n");
+            goto NAND_FLASH_FORMAT_END;
+        }else{
+            if( nandRtfsAttach( (5+i), i) == FALSE) {
+            }else{
+//                PRINTDEBUG( "nandRtfsAttach error!.\n");
+                goto NAND_FLASH_FORMAT_END;
+            }
+        }
+
+    }
+    /*-----------------------------*/
+
+
+    /*ボリュームフォーマット*/
+    for( i=1; i<nand_fat_partition_num; i++) {
+        VOLUME_LABEL[0] = (byte)(((int)'F') + i);
+        CS_Sjis2Unicode( path_str, VOLUME_LABEL);
+        if( !rtfs_pc_get_media_parms( (byte*)path_str, &geometry)) {
+//            PRINTDEBUG( "pc_get_media_parms failed\n");
+            goto NAND_FLASH_FORMAT_END;
+        }
+        if( !pc_format_volume( (byte*)path_str, &geometry)) {
+//            PRINTDEBUG( "pc_format_volume failed\n");
+            goto NAND_FLASH_FORMAT_END;
+        }
+//        PRINTDEBUG( "format FAT partition %d success.\n", i);
+    }
+    /*----------------------*/
+    DBG_CHAR( '\n');
+
+
+NAND_FLASH_FORMAT_END:
+
+    OS_SetDebugLED(0xF0);
+}
+
+/*---------------------------------------------------------------------------*
+  Name:         InitializeAllocateSystem
+
+  Description:  メモリ割当てシステムを初期化する。
+
+  Arguments:    None.
+
+  Returns:      None.
+ *---------------------------------------------------------------------------*/
+static OSHeapHandle InitializeAllocateSystem(void)
+{
+    void   *tempLo;
+    OSHeapHandle hh;
+#if 0
+    OS_TPrintf("OS_GetWramSubPrivArenaLo() = %p\n", OS_GetWramSubPrivArenaLo());
+    OS_TPrintf("OS_GetWramSubPrivArenaHi() = %p\n", OS_GetWramSubPrivArenaHi());
+    OS_TPrintf("OS_GetWramSubArenaLo() = %p\n", OS_GetWramSubArenaLo());
+    OS_TPrintf("OS_GetWramSubArenaHi() = %p\n", OS_GetWramSubArenaHi());
+    OS_TPrintf("OS_GetSubPrivArenaLo() = %p\n", OS_GetSubPrivArenaLo());
+    OS_TPrintf("OS_GetSubPrivArenaHi() = %p\n", OS_GetSubPrivArenaHi());
+
+    OS_TPrintf("call OS_SetWramSubPrivArenaHi(0x0380f980); to fix arena.\n");
+#endif
+    OS_SetWramSubPrivArenaHi((void*)0x0380f980);
+
+    // メモリ割当て初期化
+    tempLo = OS_InitAlloc(OS_ARENA_WRAM_SUBPRIV,
+                          OS_GetWramSubPrivArenaLo(), OS_GetWramSubPrivArenaHi(), 1);
+
+    // アリーナを0クリア
+    MI_CpuClear8(tempLo, (u32)OS_GetWramSubPrivArenaHi() - (u32)tempLo);
+
+    // アリーナ下位アドレスを設定
+    OS_SetArenaLo(OS_ARENA_WRAM_SUBPRIV, tempLo);
+
+    // ヒープ作成
+    hh = OS_CreateHeap(OS_ARENA_WRAM_SUBPRIV,
+                       OS_GetWramSubPrivArenaLo(), OS_GetWramSubPrivArenaHi());
+
+    if (hh < 0)
+    {
+        OS_Panic("ARM7: Fail to create heap.\n");
+    }
+
+    // カレントヒープに設定
+    (void)OS_SetCurrentHeap(OS_ARENA_WRAM_SUBPRIV, hh);
+
+    return hh;
+}
+
+/*---------------------------------------------------------------------------*
+  Name:         VBlankIntr
+
+  Description:  VBlank interrupt handler
+
+  Arguments:    None
+
+  Returns:      None
+ *---------------------------------------------------------------------------*/
+#ifndef SDK_TEG
+
+extern BOOL PMi_Initialized;
+void    PM_SelfBlinkProc(void);
+
+static void VBlankIntr(void)
+{
+    //---- LED blink system
+    if (PMi_Initialized)
+    {
+        PM_SelfBlinkProc();
+    }
+}
+
+#else
+
+static void VBlankIntr(void)
+{
+}
+
+#endif
+
+/*---------------------------------------------------------------------------*
+    End of file
+ *---------------------------------------------------------------------------*/
diff --git a/build/tests/fatfs/nand_formatter/ARM9/Makefile b/build/tests/fatfs/nand_formatter/ARM9/Makefile
new file mode 100644
index 0000000..3ce85ee
--- /dev/null
+++ b/build/tests/fatfs/nand_formatter/ARM9/Makefile
@@ -0,0 +1,53 @@
+#! make -f
+#----------------------------------------------------------------------------
+# Project:  TwlSDK - CAMERA - demos - camera-1
+# File:     Makefile
+#
+# Copyright 2007 Nintendo.  All rights reserved.
+#
+# These coded instructions, statements, and computer programs contain
+# proprietary information of Nintendo of America Inc. and/or Nintendo
+# Company Ltd., and are protected by Federal copyright law.  They may
+# not be disclosed to third parties or copied or duplicated in any form,
+# in whole or in part, without the prior written consent of Nintendo.
+#
+# $Log: Makefile,v $
+# $NoKeywords: $
+#----------------------------------------------------------------------------
+
+SUBDIRS		=
+
+
+#----------------------------------------------------------------------------
+
+#TWL_CODEGEN   =       THUMB
+
+TARGET_BIN	=	main.axf
+
+SRCS		=	main.c
+
+#SRCDIR		=	# using default
+#LCFILE		=	# using default
+
+
+include	$(TWLSDK_ROOT)/build/buildtools/commondefs
+
+#----------------------------------------------------------------------------
+
+do-build:		$(TARGETS)
+
+# .sbin
+#$(BINDIR)/$(TARGET_BIN_BASENAME).sbin : $(BINDIR)/$(TARGET_BIN_BASENAME).axf
+	objcopy -I elf32-little -O binary $(BINDIR)/$(TARGET_BIN_BASENAME).axf $(BINDIR)/$(TARGET_BIN_BASENAME).sbin
+
+
+include	$(TWLSDK_ROOT)/build/buildtools/modulerules
+
+
+
+
+
+
+
+
+#===== End of Makefile =====
diff --git a/build/tests/fatfs/nand_formatter/ARM9/src/main.c b/build/tests/fatfs/nand_formatter/ARM9/src/main.c
new file mode 100644
index 0000000..7c99c1b
--- /dev/null
+++ b/build/tests/fatfs/nand_formatter/ARM9/src/main.c
@@ -0,0 +1,59 @@
+/*---------------------------------------------------------------------------*
+  Project:  TwlSDK - SND - demos - capture
+  File:     main.c
+
+  Copyright 2007 Nintendo.  All rights reserved.
+
+  These coded instructions, statements, and computer programs contain
+  proprietary information of Nintendo of America Inc. and/or Nintendo
+  Company Ltd., and are protected by Federal copyright law.  They may
+  not be disclosed to third parties or copied or duplicated in any form,
+  in whole or in part, without the prior written consent of Nintendo.
+
+  $Log: main.c,v $
+  $NoKeywords: $
+ *---------------------------------------------------------------------------*/
+
+#include <twl.h>
+
+static void VBlankIntr(void);
+
+/*---------------------------------------------------------------------------*
+  Name:         TwlMain
+
+  Description:  main
+
+  Arguments:    None
+
+  Returns:      None
+ *---------------------------------------------------------------------------*/
+void TwlMain()
+{
+    // 初期化
+    OS_Init();
+    GX_Init();
+    OS_InitTick();
+
+    // Vブランク割り込み設定
+    OS_SetIrqFunction(OS_IE_V_BLANK, VBlankIntr);
+    (void)OS_EnableIrqMask(OS_IE_V_BLANK);
+    (void)OS_EnableIrq();
+    (void)GX_VBlankIntr(TRUE);
+    {
+        u16 bg_color = GX_RGB(31, 0, 0);
+        GX_LoadBGPltt(&bg_color, 0, sizeof(u16));
+    }
+
+    while (1)
+    {
+        OS_WaitVBlankIntr();
+    }
+}
+
+//--------------------------------------------------------------------------------
+//    Ｖブランク割り込み処理
+//
+void VBlankIntr(void)
+{
+    OS_SetIrqCheckFlag(OS_IE_V_BLANK); // checking VBlank interrupt
+}
diff --git a/build/tests/fatfs/nand_formatter/Makefile b/build/tests/fatfs/nand_formatter/Makefile
new file mode 100644
index 0000000..6988d42
--- /dev/null
+++ b/build/tests/fatfs/nand_formatter/Makefile
@@ -0,0 +1,42 @@
+#! make -f
+#----------------------------------------------------------------------------
+# Project:  TwlSDK - build
+# File:     Makefile
+#
+# Copyright 2007 Nintendo.  All rights reserved.
+#
+# These coded instructions, statements, and computer programs contain
+# proprietary information of Nintendo of America Inc. and/or Nintendo
+# Company Ltd., and are protected by Federal copyright law.  They may
+# not be disclosed to third parties or copied or duplicated in any form,
+# in whole or in part, without the prior written consent of Nintendo.
+#
+# $Log: $
+# $NoKeywords: $
+#----------------------------------------------------------------------------
+
+SUBDIRS =	\
+            ARM7 \
+            ARM9 \
+
+#----------------------------------------------------------------------------
+
+TARGET_BIN		=	nand_formatter_kmc.srl
+
+MAKEROM_ARM9	=	ARM9/bin/$(TWL_BUILDTYPE_ARM9)/main.axf
+MAKEROM_ARM7	=	ARM7/bin/$(TWL_BUILDTYPE_ARM7)/main.axf
+
+#----------------------------------------------------------------------------
+
+include	$(TWLSDK_ROOT)/build/buildtools/commondefs
+
+#----------------------------------------------------------------------------
+
+ifeq	($(TWL_PLATFORM),TS)
+do-build:		$(TARGETS)
+endif
+
+include	$(TWLSDK_ROOT)/build/buildtools/modulerules
+
+
+#===== End of Makefile =====