diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_l4.c b/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_l4.c
index a05be7ce6ba32407d3b1362f502d8aabee191a65..2f724de7187cebdde82299913c2d955d77dbd36b 100644
--- a/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_l4.c
+++ b/bsp/stm32/libraries/HAL_Drivers/drv_flash/drv_flash_l4.c
@@ -12,8 +12,8 @@
 
 #ifdef BSP_USING_ON_CHIP_FLASH
 #include "drv_config.h"
-#include "drv_flash.h"    
- 
+#include "drv_flash.h"
+
 #if defined(PKG_USING_FAL)
 #include "fal.h"
 #endif
@@ -53,8 +53,8 @@ static uint32_t GetPage(uint32_t Addr)
 static uint32_t GetBank(uint32_t Addr)
 {
     uint32_t bank = 0;
-#if defined (STM32L432xx)
-	bank = FLASH_BANK_1;
+#ifndef FLASH_BANK_2
+    bank = FLASH_BANK_1;
 #else
     if (READ_BIT(SYSCFG->MEMRMP, SYSCFG_MEMRMP_FB_MODE) == 0)
     {
@@ -135,7 +135,7 @@ int stm32_flash_write(rt_uint32_t addr, const uint8_t *buf, size_t size)
         LOG_E("ERROR: write outrange flash size! addr is (0x%p)\n", (void*)(addr + size));
         return -RT_EINVAL;
     }
-    
+
     if(addr % 8 != 0)
     {
         LOG_E("write addr must be 8-byte alignment");
diff --git a/bsp/stm32/stm32l452-st-nucleo/board/Kconfig b/bsp/stm32/stm32l452-st-nucleo/board/Kconfig
index e757acf26d3bdfe8a1e28aff9acca5ebe61d4eea..a0c9e1f00954b2040d6ffc90a65aeca7d850077d 100644
--- a/bsp/stm32/stm32l452-st-nucleo/board/Kconfig
+++ b/bsp/stm32/stm32l452-st-nucleo/board/Kconfig
@@ -29,8 +29,8 @@ menu "On-chip Peripheral Drivers"
                 bool "Enable UART1 RX DMA"
                 depends on BSP_USING_UART1 && RT_SERIAL_USING_DMA
                 default n
-				
-			config BSP_USING_UART2
+
+            config BSP_USING_UART2
                 bool "Enable UART2"
                 default y
 
@@ -60,7 +60,9 @@ menu "On-chip Peripheral Drivers"
                 select BSP_SPI1_TX_USING_DMA
                 default n
         endif
-
+    config BSP_USING_ON_CHIP_FLASH
+        bool "Enable on-chip FLASH"
+        default n
     menuconfig BSP_USING_I2C1
         bool "Enable I2C1 BUS (software simulation)"
         default n
diff --git a/bsp/stm32/stm32l452-st-nucleo/board/SConscript b/bsp/stm32/stm32l452-st-nucleo/board/SConscript
index ab57c2310ab057ee0eba44a0bd2f4df576082f14..cdc93c9ac81e5e721faaea05550197b616b10116 100644
--- a/bsp/stm32/stm32l452-st-nucleo/board/SConscript
+++ b/bsp/stm32/stm32l452-st-nucleo/board/SConscript
@@ -14,6 +14,7 @@ CubeMX_Config/Src/stm32l4xx_hal_msp.c
 
 path =  [cwd]
 path += [cwd + '/CubeMX_Config/Inc']
+path += [cwd + '/ports']
 
 startup_path_prefix = SDK_LIB
 
diff --git a/bsp/stm32/stm32l452-st-nucleo/board/ports/fal_cfg.h b/bsp/stm32/stm32l452-st-nucleo/board/ports/fal_cfg.h
new file mode 100644
index 0000000000000000000000000000000000000000..db782a599163687b7cd83ceac3ce8c41b74936a0
--- /dev/null
+++ b/bsp/stm32/stm32l452-st-nucleo/board/ports/fal_cfg.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-12-5      SummerGift   first version
+ */
+
+#ifndef _FAL_CFG_H_
+#define _FAL_CFG_H_
+
+#include <rtthread.h>
+#include <board.h>
+
+#if defined(BSP_USING_ON_CHIP_FLASH)
+extern const struct fal_flash_dev stm32_onchip_flash;
+#endif /* BSP_USING_ON_CHIP_FLASH */
+
+/* ========================= Device Configuration ========================== */
+#ifdef BSP_USING_ON_CHIP_FLASH
+#define ONCHIP_FLASH_DEV     &stm32_onchip_flash,  
+#else
+#define ONCHIP_FLASH_DEV    
+#endif /* BSP_USING_ON_CHIP_FLASH */
+
+/* flash device table */
+#define FAL_FLASH_DEV_TABLE                                          \
+{                                                                    \
+    ONCHIP_FLASH_DEV                                                 \
+}
+
+/* ====================== Partition Configuration ========================== */
+#ifdef FAL_PART_HAS_TABLE_CFG
+
+#ifdef BSP_USING_ON_CHIP_FLASH
+#define ONCHIP_FLASH_PATITION          {FAL_PART_MAGIC_WROD, "app",   "onchip_flash",   0,           496 * 1024, 0},      \
+                                       {FAL_PART_MAGIC_WROD, "param", "onchip_flash",   496* 1024,   16 * 1024,  0},
+#else
+#define ONCHIP_FLASH_PATITION
+#endif
+
+/* partition table */
+#define FAL_PART_TABLE                                               \
+{                                                                    \
+    ONCHIP_FLASH_PATITION                                            \
+}
+#endif /* FAL_PART_HAS_TABLE_CFG */
+
+#endif /* _FAL_CFG_H_ */