diff --git a/bsp/stm32/stm32f407-atk-explorer/board/Kconfig b/bsp/stm32/stm32f407-atk-explorer/board/Kconfig
index 84aa84e42c..f411904234 100644
--- a/bsp/stm32/stm32f407-atk-explorer/board/Kconfig
+++ b/bsp/stm32/stm32f407-atk-explorer/board/Kconfig
@@ -17,6 +17,7 @@ menu "Onboard Peripheral Drivers"
 
     config BSP_USING_COM2
         bool "Enable COM2 (uart2 pin conflict with Ethernet and PWM)"
+        depends on (!BSP_USING_ETH && !BSP_USING_PWM)
         select BSP_USING_UART
         select BSP_USING_UART2
         default n
diff --git a/bsp/stm32/stm32f407-atk-explorer/board/ports/drv_sram.c b/bsp/stm32/stm32f407-atk-explorer/board/ports/drv_sram.c
index dba9ec5e29..c947c759f2 100644
--- a/bsp/stm32/stm32f407-atk-explorer/board/ports/drv_sram.c
+++ b/bsp/stm32/stm32f407-atk-explorer/board/ports/drv_sram.c
@@ -13,7 +13,7 @@
 #include <board.h>
 
 #ifdef BSP_USING_SRAM
-#include <sram_port.h>
+#include "drv_sram.h"
 
 #define DRV_DEBUG
 #define LOG_TAG             "drv.sram"
diff --git a/bsp/stm32/stm32f407-atk-explorer/board/ports/sram_port.h b/bsp/stm32/stm32f407-atk-explorer/board/ports/drv_sram.h
similarity index 100%
rename from bsp/stm32/stm32f407-atk-explorer/board/ports/sram_port.h
rename to bsp/stm32/stm32f407-atk-explorer/board/ports/drv_sram.h