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 2f724de7187cebdde82299913c2d955d77dbd36b..00f84711f55a618bbfe103125fc5bb7ff7edd7eb 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
@@ -270,7 +270,7 @@ static int fal_flash_read(long offset, rt_uint8_t *buf, size_t size);
 static int fal_flash_write(long offset, const rt_uint8_t *buf, size_t size);
 static int fal_flash_erase(long offset, size_t size);
 
-const struct fal_flash_dev stm32_onchip_flash = { "onchip_flash", STM32_FLASH_START_ADRESS, STM32_FLASH_SIZE, 2048, {NULL, fal_flash_read, fal_flash_write, fal_flash_erase} };
+const struct fal_flash_dev stm32_onchip_flash = { "onchip_flash", STM32_FLASH_START_ADRESS, STM32_FLASH_SIZE, FLASH_PAGE_SIZE, {NULL, fal_flash_read, fal_flash_write, fal_flash_erase} };
 
 static int fal_flash_read(long offset, rt_uint8_t *buf, size_t size)
 {
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_usbd.c b/bsp/stm32/libraries/HAL_Drivers/drv_usbd.c
index 79cb327ed8d51782f07ee6619e520e76fd6e4c58..19e8d7f3d4a916d8016407d6808da3f7486835bf 100644
--- a/bsp/stm32/libraries/HAL_Drivers/drv_usbd.c
+++ b/bsp/stm32/libraries/HAL_Drivers/drv_usbd.c
@@ -239,11 +239,27 @@ const static struct udcd_ops _udc_ops =
     _wakeup,
 };
 
+#ifdef RT_USING_DEVICE_OPS
+const static struct rt_device_ops _ops =
+{
+    _init,
+    RT_NULL,
+    RT_NULL,
+    RT_NULL,
+    RT_NULL,
+    RT_NULL,
+};
+#endif
+
 int stm_usbd_register(void)
 {
     rt_memset((void *)&_stm_udc, 0, sizeof(struct udcd));
     _stm_udc.parent.type = RT_Device_Class_USBDevice;
+#ifdef RT_USING_DEVICE_OPS
+    _stm_udc.parent.ops = &_ops;
+#else
     _stm_udc.parent.init = _init;
+#endif
     _stm_udc.parent.user_data = &_stm_pcd;
     _stm_udc.ops = &_udc_ops;
     /* Register endpoint infomation */