diff --git a/bsp/stm32/stm32l496-st-nucleo/applications/main.c b/bsp/stm32/stm32l496-st-nucleo/applications/main.c
index 6c19612f99..691dadac22 100644
--- a/bsp/stm32/stm32l496-st-nucleo/applications/main.c
+++ b/bsp/stm32/stm32l496-st-nucleo/applications/main.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2021, RT-Thread Development Team
+ * Copyright (c) 2006-2022, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/bsp/stm32/stm32l496-st-nucleo/board/Kconfig b/bsp/stm32/stm32l496-st-nucleo/board/Kconfig
index e4b311025e..084e549c37 100644
--- a/bsp/stm32/stm32l496-st-nucleo/board/Kconfig
+++ b/bsp/stm32/stm32l496-st-nucleo/board/Kconfig
@@ -96,6 +96,9 @@ menu "On-chip Peripheral Drivers"
         endif
 
     config BSP_USING_ON_CHIP_FLASH
+        select RT_USING_DFS
+        select RT_USING_DFS_ELMFAT
+        select RT_USING_FAL
         bool "Enable on-chip FLASH"
         default n
 
diff --git a/bsp/stm32/stm32l496-st-nucleo/board/SConscript b/bsp/stm32/stm32l496-st-nucleo/board/SConscript
index 6678edca06..617f20c65c 100644
--- a/bsp/stm32/stm32l496-st-nucleo/board/SConscript
+++ b/bsp/stm32/stm32l496-st-nucleo/board/SConscript
@@ -12,32 +12,14 @@ board.c
 CubeMX_Config/Src/stm32l4xx_hal_msp.c
 ''')
 
-if GetDepend(['BSP_USING_QSPI_FLASH']):
-    src += Glob('ports/drv_qspi_flash.c')
-    
-if GetDepend('BSP_USING_SPI_LCD'):
-    src = src + ['ports/drv_lcd.c']
+if GetDepend(['BSP_USING_ON_CHIP_FLASH']):
+    src += Glob('mnt_onchip.c')
 
-if GetDepend(['BSP_USING_SDCARD']):
-    src += Glob('ports/sdcard_port.c')
-
-if GetDepend(['BSP_USING_ICM20608']) or GetDepend(['BSP_USING_AHT10']):
-    src += Glob('ports/sensor_port.c')
-
-if GetDepend(['BSP_USING_AUDIO']):
-    src += Glob('ports/audio/drv_es8388.c')
-    src += Glob('ports/audio/drv_sound.c')
-
-if GetDepend(['BSP_USING_AUDIO_RECORD']):
-    src += Glob('ports/audio/drv_mic.c')
 
 path =  [cwd]
 path += [cwd + '/CubeMX_Config/Inc']
 path += [cwd + '/ports']
 
-if GetDepend(['BSP_USING_AUDIO']):
-    path += [cwd + '/ports/audio']
-
 startup_path_prefix = SDK_LIB
 
 if rtconfig.PLATFORM in ['gcc']:
diff --git a/bsp/stm32/stm32l496-st-nucleo/board/fal_cfg.h b/bsp/stm32/stm32l496-st-nucleo/board/fal_cfg.h
new file mode 100644
index 0000000000..27d2a60c3e
--- /dev/null
+++ b/bsp/stm32/stm32l496-st-nucleo/board/fal_cfg.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2006-2022, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2022-06-08     supperthomas first version
+ */
+
+#ifndef _FAL_CFG_H_
+#define _FAL_CFG_H_
+
+#include <rtconfig.h>
+#include <board.h>
+
+extern const struct fal_flash_dev stm32_onchip_flash;
+/* flash device table */
+#define FAL_FLASH_DEV_TABLE                                          \
+{                                                                    \
+    &stm32_onchip_flash                                             \
+}
+/* ====================== Partition Configuration ========================== */
+#ifdef FAL_PART_HAS_TABLE_CFG
+/* partition table */
+#define FAL_PART_TABLE                                                               \
+{                                                                                    \
+    {FAL_PART_MAGIC_WORD,        "app",     "onchip_flash",         0,   512*1024, 0}, \
+    {FAL_PART_MAGIC_WORD,       "flash",     "onchip_flash",   512*1024,  512*1024, 0}, \
+}
+#endif
+
+#endif /* _FAL_CFG_H_ */
diff --git a/bsp/stm32/stm32l496-st-nucleo/board/mnt_onchip.c b/bsp/stm32/stm32l496-st-nucleo/board/mnt_onchip.c
new file mode 100644
index 0000000000..2b47ce748d
--- /dev/null
+++ b/bsp/stm32/stm32l496-st-nucleo/board/mnt_onchip.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2006-2022, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2022-06-08     supperthomas first version
+ */
+
+#include <rtthread.h>
+#include <rtdevice.h>
+
+#include "fal.h"
+#include <dfs_fs.h>
+
+#ifdef RT_USING_DFS
+#include <dfs_fs.h>
+
+int mnt_init(void)
+{
+    fal_init();
+#define FS_PARTITION_NAME "flash"
+    struct rt_device *mtd_dev;
+    mtd_dev = fal_blk_device_create(FS_PARTITION_NAME);
+    if (dfs_mount(FS_PARTITION_NAME, "/", "elm", 0, 0) == 0)
+    {
+        rt_kprintf("Filesystem initialized!");
+    }
+    else
+    {
+        dfs_mkfs("elm", FS_PARTITION_NAME);
+        if (dfs_mount(FS_PARTITION_NAME, "/", "elm", 0, 0) != 0)
+        {
+            rt_kprintf("Failed to initialize filesystem!");
+        }
+    }
+
+    return 0;
+}
+INIT_ENV_EXPORT(mnt_init);
+#endif
+