diff --git a/bsp/stm32/libraries/HAL_Drivers/config/f4/dma_config.h b/bsp/stm32/libraries/HAL_Drivers/config/f4/dma_config.h
index 46411c5441ec6a0e5263426e63d8fc42a43a5cbb..17768c9a04b2a9ceb36a67010d2b748b2eb6eb15 100644
--- a/bsp/stm32/libraries/HAL_Drivers/config/f4/dma_config.h
+++ b/bsp/stm32/libraries/HAL_Drivers/config/f4/dma_config.h
@@ -157,12 +157,12 @@ extern "C" {
 #define SPI1_RX_DMA_INSTANCE             DMA2_Stream0
 #define SPI1_RX_DMA_CHANNEL              DMA_CHANNEL_3
 #define SPI1_RX_DMA_IRQ                  DMA2_Stream0_IRQn
-#elif defined(BSP_SPI4_TX_USING_DMA) && !defined(SPI4_TX_DMA_INSTANCE)
-#define SPI4_DMA_TX_IRQHandler           DMA2_Stream0_IRQHandler
-#define SPI4_TX_DMA_RCC                  RCC_AHB1ENR_DMA2EN
-#define SPI4_TX_DMA_INSTANCE             DMA2_Stream0
-#define SPI4_TX_DMA_CHANNEL              DMA_CHANNEL_4
-#define SPI4_TX_DMA_IRQ                  DMA2_Stream0_IRQn
+#elif defined(BSP_SPI4_RX_USING_DMA) && !defined(SPI4_RX_DMA_INSTANCE)
+#define SPI4_DMA_RX_IRQHandler           DMA2_Stream0_IRQHandler
+#define SPI4_RX_DMA_RCC                  RCC_AHB1ENR_DMA2EN
+#define SPI4_RX_DMA_INSTANCE             DMA2_Stream0
+#define SPI4_RX_DMA_CHANNEL              DMA_CHANNEL_4
+#define SPI4_RX_DMA_IRQ                  DMA2_Stream0_IRQn
 #endif
 
 /* DMA2 stream1 */
@@ -208,12 +208,12 @@ extern "C" {
 #define SPI1_TX_DMA_INSTANCE             DMA2_Stream3
 #define SPI1_TX_DMA_CHANNEL              DMA_CHANNEL_3
 #define SPI1_TX_DMA_IRQ                  DMA2_Stream3_IRQn
-#elif defined(BSP_SPI4_TX_USING_DMA) && !defined(SPI4_TX_DMA_INSTANCE)
-#define SPI4_DMA_TX_IRQHandler           DMA2_Stream3_IRQHandler
-#define SPI4_TX_DMA_RCC                  RCC_AHB1ENR_DMA2EN
-#define SPI4_TX_DMA_INSTANCE             DMA2_Stream3
-#define SPI4_TX_DMA_CHANNEL              DMA_CHANNEL_5
-#define SPI4_TX_DMA_IRQ                  DMA2_Stream3_IRQn
+#elif defined(BSP_SPI4_RX_USING_DMA) && !defined(SPI4_RX_DMA_INSTANCE)
+#define SPI4_DMA_RX_IRQHandler           DMA2_Stream3_IRQHandler
+#define SPI4_RX_DMA_RCC                  RCC_AHB1ENR_DMA2EN
+#define SPI4_RX_DMA_INSTANCE             DMA2_Stream3
+#define SPI4_RX_DMA_CHANNEL              DMA_CHANNEL_5
+#define SPI4_RX_DMA_IRQ                  DMA2_Stream3_IRQn
 #endif
 
 /* DMA2 stream4 */
diff --git a/bsp/stm32/libraries/HAL_Drivers/config/f4/pwm_config.h b/bsp/stm32/libraries/HAL_Drivers/config/f4/pwm_config.h
index 14d4aa2affeb7cb2dcf2d8ff945db8cd03494838..38033034930c1ca4eb76ce3364428813d5e5f8ff 100644
--- a/bsp/stm32/libraries/HAL_Drivers/config/f4/pwm_config.h
+++ b/bsp/stm32/libraries/HAL_Drivers/config/f4/pwm_config.h
@@ -61,6 +61,17 @@ extern "C" {
 #endif /* PWM5_CONFIG */
 #endif /* BSP_USING_PWM5 */
 
+#ifdef BSP_USING_PWM9
+#ifndef PWM9_CONFIG
+#define PWM9_CONFIG                             \
+    {                                           \
+       .tim_handle.Instance     = TIM9,         \
+       .name                    = "pwm9",       \
+       .channel                 = 0             \
+    }
+#endif /* PWM9_CONFIG */
+#endif /* BSP_USING_PWM9 */
+
 #ifdef BSP_USING_PWM12
 #ifndef PWM12_CONFIG
 #define PWM12_CONFIG                            \
diff --git a/bsp/stm32/libraries/HAL_Drivers/config/f4/tim_config.h b/bsp/stm32/libraries/HAL_Drivers/config/f4/tim_config.h
index cd116d9e19c6a7c76c3092a7b28ce80da4cd5786..bc08f219b9c806eed836c754f336204191363ac1 100644
--- a/bsp/stm32/libraries/HAL_Drivers/config/f4/tim_config.h
+++ b/bsp/stm32/libraries/HAL_Drivers/config/f4/tim_config.h
@@ -27,6 +27,17 @@ extern "C" {
     }
 #endif /* TIM_DEV_INFO_CONFIG */
 
+#ifdef BSP_USING_TIM3
+#ifndef TIM3_CONFIG
+#define TIM3_CONFIG                                         \
+    {                                                       \
+       .tim_handle.Instance     = TIM3,                     \
+       .tim_irqn                = TIM3_IRQn,                \
+       .name                    = "timer3",                 \
+    }
+#endif /* TIM3_CONFIG */
+#endif /* BSP_USING_TIM3 */
+
 #ifdef BSP_USING_TIM11
 #ifndef TIM11_CONFIG
 #define TIM11_CONFIG                                        \
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_lcd.c b/bsp/stm32/libraries/HAL_Drivers/drv_lcd.c
index 3f6de0286f2685b3382102ba09851c366c858696..2ebd013edd8bed60408bf9a6117d2a1a8d511a05 100644
--- a/bsp/stm32/libraries/HAL_Drivers/drv_lcd.c
+++ b/bsp/stm32/libraries/HAL_Drivers/drv_lcd.c
@@ -254,6 +254,11 @@ void turn_on_lcd_backlight(void)
 
     rt_pin_write(LCD_DISP_GPIO_NUM, PIN_HIGH);
     rt_pin_write(LCD_BL_GPIO_NUM, PIN_HIGH);
+}
+#else
+void turn_on_lcd_backlight(void)
+{
+    
 }
 #endif
 
diff --git a/components/drivers/Kconfig b/components/drivers/Kconfig
index c567233c847b67257056816456bc29fecc0658f0..3995199ac23892e07e22b5a45c6e1fd56d2a75e7 100755
--- a/components/drivers/Kconfig
+++ b/components/drivers/Kconfig
@@ -712,6 +712,9 @@ menu "Using USB"
                     config RT_VCOM_TASK_STK_SIZE
                         int "virtual com thread stack size"
                         default 512
+                    config RT_CDC_RX_BUFSIZE
+                        int "virtual com rx buffer size"
+                        default 128
                     config RT_VCOM_TX_USE_DMA
                         bool "Enable to use dma for vcom tx"
                         default n
diff --git a/components/drivers/usb/usbdevice/class/cdc_vcom.c b/components/drivers/usb/usbdevice/class/cdc_vcom.c
index b6044b37a7c5298b3e5477c25c1f26a16cc69730..c94a438131c63614561100b74bff7e0991bf8871 100644
--- a/components/drivers/usb/usbdevice/class/cdc_vcom.c
+++ b/components/drivers/usb/usbdevice/class/cdc_vcom.c
@@ -28,7 +28,11 @@
 #define VCOM_TX_TIMEOUT      1000
 #endif /*RT_VCOM_TX_TIMEOUT*/
 
+#ifdef RT_CDC_RX_BUFSIZE
+#define CDC_RX_BUFSIZE          RT_CDC_RX_BUFSIZE
+#else
 #define CDC_RX_BUFSIZE          128
+#endif
 #define CDC_MAX_PACKET_SIZE     64
 #define VCOM_DEVICE             "vcom"