diff --git a/bsp/stm32/stm32f407-rt-spark/board/Kconfig b/bsp/stm32/stm32f407-rt-spark/board/Kconfig
index 1306e0b577..ca3ab2c321 100644
--- a/bsp/stm32/stm32f407-rt-spark/board/Kconfig
+++ b/bsp/stm32/stm32f407-rt-spark/board/Kconfig
@@ -289,90 +289,202 @@ menu "On-chip Peripheral Drivers"
                 int "UART TX timeout"
                 default 2000
                 depends on RT_USING_SERIAL_V1
-                
-            config BSP_USING_UART1
-                bool "Enable UART1"
-                default y
+            menuconfig BSP_USING_UART1
+            bool "Enable UART1"
+            default y
+            if BSP_USING_UART1
+                config BSP_UART1_RX_USING_DMA
+                    bool "Enable UART1 RX DMA"
+                    depends on RT_SERIAL_USING_DMA
+                    default n
 
-            config BSP_UART1_RX_USING_DMA
-                bool "Enable UART1 RX DMA"
-                depends on BSP_USING_UART1 && RT_SERIAL_USING_DMA
-                default n
+                config BSP_UART1_TX_USING_DMA
+                    bool "Enable UART1 TX DMA"
+                    depends on RT_SERIAL_USING_DMA
+                    default n
 
-            config BSP_UART1_TX_USING_DMA
-                bool "Enable UART1 TX DMA"
-                depends on BSP_USING_UART1 && RT_SERIAL_USING_DMA
-                default n
+                config BSP_UART1_RX_BUFSIZE
+                    int "Set UART1 RX buffer size"
+                    range 64 65535
+                    depends on BSP_USING_UART1 && RT_USING_SERIAL_V2
+                    default 256
 
-            config BSP_USING_UART2
-                bool "Enable UART2"
-                default n
+                config BSP_UART1_TX_BUFSIZE
+                    int "Set UART1 TX buffer size"
+                    range 0 65535
+                    depends on BSP_USING_UART1 && RT_USING_SERIAL_V2
+                    default 0
 
-            config BSP_UART2_RX_USING_DMA
-                bool "Enable UART2 RX DMA"
-                depends on BSP_USING_UART2 && RT_SERIAL_USING_DMA
-                default n
+                config BSP_UART1_DMA_PING_BUFSIZE
+                    int "Set UART1 RX DMA ping-pong buffer size"
+                    range 32 65535
+                    depends on BSP_UART1_RX_USING_DMA && RT_USING_SERIAL_V2 
+                    default 64  
+            endif
+            menuconfig BSP_USING_UART2
+            bool "Enable UART2"
+            default n
+            if BSP_USING_UART2
+                config BSP_UART2_RX_USING_DMA
+                    bool "Enable UART2 RX DMA"
+                    depends on RT_SERIAL_USING_DMA
+                    default n
 
-            config BSP_UART2_TX_USING_DMA
-                bool "Enable UART2 TX DMA"
-                depends on BSP_USING_UART2 && RT_SERIAL_USING_DMA
-                default n
+                config BSP_UART2_TX_USING_DMA
+                    bool "Enable UART2 TX DMA"
+                    depends on RT_SERIAL_USING_DMA
+                    default n
 
-            config BSP_USING_UART3
-                bool "Enable UART3"
-                default n
+                config BSP_UART2_RX_BUFSIZE
+                    int "Set UART2 RX buffer size"
+                    range 64 65535
+                    depends on BSP_USING_UART2 && RT_USING_SERIAL_V2
+                    default 256
 
-            config BSP_UART3_RX_USING_DMA
-                bool "Enable UART3 RX DMA"
-                depends on BSP_USING_UART3 && RT_SERIAL_USING_DMA
-                default n
+                config BSP_UART2_TX_BUFSIZE
+                    int "Set UART2 TX buffer size"
+                    range 0 65535
+                    depends on BSP_USING_UART2 && RT_USING_SERIAL_V2
+                    default 0
 
-            config BSP_UART3_TX_USING_DMA
-                bool "Enable UART3 TX DMA"
-                depends on BSP_USING_UART3 && RT_SERIAL_USING_DMA
-                default n
+                config BSP_UART2_DMA_PING_BUFSIZE
+                    int "Set UART2 RX DMA ping-pong buffer size"
+                    range 32 65535
+                    depends on BSP_UART2_RX_USING_DMA && RT_USING_SERIAL_V2 
+                    default 64  
+            endif
+            menuconfig BSP_USING_UART3
+            bool "Enable UART3"
+            default n
+            if BSP_USING_UART3
+                config BSP_UART3_RX_USING_DMA
+                    bool "Enable UART3 RX DMA"
+                    depends on RT_SERIAL_USING_DMA
+                    default n
 
-            config BSP_USING_UART4
-                bool "Enable UART4"
-                default n
+                config BSP_UART3_TX_USING_DMA
+                    bool "Enable UART3 TX DMA"
+                    depends on RT_SERIAL_USING_DMA
+                    default n
 
-            config BSP_UART4_RX_USING_DMA
-                bool "Enable UART4 RX DMA"
-                depends on BSP_USING_UART4 && RT_SERIAL_USING_DMA
-                default n
+                config BSP_UART3_RX_BUFSIZE
+                    int "Set UART3 RX buffer size"
+                    range 64 65535
+                    depends on BSP_USING_UART3 && RT_USING_SERIAL_V2
+                    default 256
 
-            config BSP_UART4_TX_USING_DMA
-                bool "Enable UART4 TX DMA"
-                depends on BSP_USING_UART4 && RT_SERIAL_USING_DMA
-                default n
+                config BSP_UART3_TX_BUFSIZE
+                    int "Set UART3 TX buffer size"
+                    range 0 65535
+                    depends on BSP_USING_UART3 && RT_USING_SERIAL_V2
+                    default 0
 
-            config BSP_USING_UART5
-                bool "Enable UART5"
-                default n
+                config BSP_UART3_DMA_PING_BUFSIZE
+                    int "Set UART3 RX DMA ping-pong buffer size"
+                    range 32 65535
+                    depends on BSP_UART3_RX_USING_DMA && RT_USING_SERIAL_V2
+                    default 64
+            endif
 
-            config BSP_UART5_RX_USING_DMA
-                bool "Enable UART5 RX DMA"
-                depends on BSP_USING_UART5 && RT_SERIAL_USING_DMA
-                default n
+            menuconfig BSP_USING_UART4
+            bool "Enable UART4"
+            default n
+            if BSP_USING_UART4
+                config BSP_UART4_RX_USING_DMA
+                    bool "Enable UART4 RX DMA"
+                    depends on RT_SERIAL_USING_DMA
+                    default n
 
-            config BSP_UART5_TX_USING_DMA
-                bool "Enable UART5 TX DMA"
-                depends on BSP_USING_UART5 && RT_SERIAL_USING_DMA
-                default n
+                config BSP_UART4_TX_USING_DMA
+                    bool "Enable UART4 TX DMA"
+                    depends on RT_SERIAL_USING_DMA
+                    default n
 
-            config BSP_USING_UART6
-                bool "Enable UART6"
-                default n
+                config BSP_UART4_RX_BUFSIZE
+                    int "Set UART4 RX buffer size"
+                    range 64 65535
+                    depends on BSP_USING_UART4 && RT_USING_SERIAL_V2
+                    default 256
 
-            config BSP_UART6_RX_USING_DMA
-                bool "Enable UART6 RX DMA"
-                depends on BSP_USING_UART6 && RT_SERIAL_USING_DMA
-                default n
+                config BSP_UART4_TX_BUFSIZE
+                    int "Set UART4 TX buffer size"
+                    range 0 65535
+                    depends on BSP_USING_UART4 && RT_USING_SERIAL_V2
+                    default 0
+
+                config BSP_UART4_DMA_PING_BUFSIZE
+                    int "Set UART4 RX DMA ping-pong buffer size"
+                    range 32 65535
+                    depends on BSP_UART4_RX_USING_DMA && RT_USING_SERIAL_V2
+                    default 64
+            endif
+
+            menuconfig BSP_USING_UART5
+            bool "Enable UART5"
+            default n
+            if BSP_USING_UART5
+                config BSP_UART5_RX_USING_DMA
+                    bool "Enable UART5 RX DMA"
+                    depends on RT_SERIAL_USING_DMA
+                    default n
+
+                config BSP_UART5_TX_USING_DMA
+                    bool "Enable UART5 TX DMA"
+                    depends on RT_SERIAL_USING_DMA
+                    default n
+
+                config BSP_UART5_RX_BUFSIZE
+                    int "Set UART5 RX buffer size"
+                    range 64 65535
+                    depends on BSP_USING_UART5 && RT_USING_SERIAL_V2
+                    default 256
+
+                config BSP_UART5_TX_BUFSIZE
+                    int "Set UART5 TX buffer size"
+                    range 0 65535
+                    depends on BSP_USING_UART5 && RT_USING_SERIAL_V2
+                    default 0
+
+                config BSP_UART5_DMA_PING_BUFSIZE
+                    int "Set UART5 RX DMA ping-pong buffer size"
+                    range 32 65535
+                    depends on BSP_UART5_RX_USING_DMA && RT_USING_SERIAL_V2
+                    default 64
+            endif
+
+            menuconfig BSP_USING_UART6
+            bool "Enable UART6"
+            default n
+            if BSP_USING_UART6
+                config BSP_UART6_RX_USING_DMA
+                    bool "Enable UART6 RX DMA"
+                    depends on RT_SERIAL_USING_DMA
+                    default n
+
+                config BSP_UART6_TX_USING_DMA
+                    bool "Enable UART6 TX DMA"
+                    depends on RT_SERIAL_USING_DMA
+                    default n
+
+                config BSP_UART6_RX_BUFSIZE
+                    int "Set UART6 RX buffer size"
+                    range 64 65535
+                    depends on BSP_USING_UART6 && RT_USING_SERIAL_V2
+                    default 256
+
+                config BSP_UART6_TX_BUFSIZE
+                    int "Set UART6 TX buffer size"
+                    range 0 65535
+                    depends on BSP_USING_UART6 && RT_USING_SERIAL_V2
+                    default 0
+
+                config BSP_UART6_DMA_PING_BUFSIZE
+                    int "Set UART6 RX DMA ping-pong buffer size"
+                    range 32 65535
+                    depends on BSP_UART6_RX_USING_DMA && RT_USING_SERIAL_V2
+                    default 64
+            endif
 
-            config BSP_UART6_TX_USING_DMA
-                bool "Enable UART6 TX DMA"
-                depends on BSP_USING_UART6 && RT_SERIAL_USING_DMA
-                default n
         endif
 
     menuconfig BSP_USING_TIM