diff --git a/demos/stm32f405rg/.cproject b/demos/stm32f405rg/.cproject
index 58ea55a..6c14b89 100644
--- a/demos/stm32f405rg/.cproject
+++ b/demos/stm32f405rg/.cproject
@@ -158,7 +158,7 @@
 						</toolChain>
 					</folderInfo>
 					<sourceEntries>
-						<entry excluding="applications/syscall_armlibc.c|libraries/CMSIS/Device/ST/STM32F4xx/Source/Templates/arm|fal/samples/porting/fal_flash_sfud_port.c|fal/samples/porting/fal_flash_stm32f2_port.c" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name=""/>
+						<entry excluding="fal/samples/porting/fal_flash_stm32f1_port.c|applications/syscall_armlibc.c|libraries/CMSIS/Device/ST/STM32F4xx/Source/Templates/arm|fal/samples/porting/fal_flash_sfud_port.c|fal/samples/porting/fal_flash_stm32f2_port.c" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name=""/>
 					</sourceEntries>
 				</configuration>
 			</storageModule>
diff --git a/demos/stm32f405rg/drivers/board.h b/demos/stm32f405rg/drivers/board.h
index c291335..47d42d7 100644
--- a/demos/stm32f405rg/drivers/board.h
+++ b/demos/stm32f405rg/drivers/board.h
@@ -5,8 +5,7 @@
  *
  * Change Logs:
  * Date           Author       Notes
- * 2019-10-26     ChenYong     first version
- * 2020-05-08     Chenyaxing   add memory and clock information
+ * 2020-07-12     RealThread   first version
  */
 
 #ifndef __BOARD_H__
@@ -48,12 +47,6 @@ extern "C"
  *                 such as     #define BSP_UART1_TX_PIN       "PA9"
  *                             #define BSP_UART1_RX_PIN       "PA10"
  *
- * STEP 3, if you want using SERIAL DMA, you must open it in the RT-Thread Settings.
- *                 RT-Thread Setting -> Components -> Device Drivers -> Serial Device Drivers -> Enable Serial DMA Mode
- *
- * STEP 4, according to serial port number to define serial port tx/rx DMA function in the board.h file
- *                 such as     #define BSP_UART1_RX_USING_DMA
- *
  */
 
 #define BSP_USING_UART1
@@ -62,4 +55,9 @@ extern "C"
 
 /*-------------------------- UART CONFIG END --------------------------*/
 extern void wait_ms(unsigned long ms_time);
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __BOARD_H__ */
diff --git a/demos/stm32f405rg_spi_flash/.cproject b/demos/stm32f405rg_spi_flash/.cproject
index 1716aa4..03e1dbc 100644
--- a/demos/stm32f405rg_spi_flash/.cproject
+++ b/demos/stm32f405rg_spi_flash/.cproject
@@ -159,7 +159,7 @@
 						</toolChain>
 					</folderInfo>
 					<sourceEntries>
-						<entry excluding="fal/samples/porting/fal_flash_stm32f4.c|applications/syscall_armlibc.c|libraries/CMSIS/Device/ST/STM32F4xx/Source/Templates/arm|fal/samples/porting/fal_flash_stm32f2_port.c" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name=""/>
+						<entry excluding="fal/samples/porting/fal_flash_stm32f1_port.c|fal/samples/porting/fal_flash_stm32f4.c|applications/syscall_armlibc.c|libraries/CMSIS/Device/ST/STM32F4xx/Source/Templates/arm|fal/samples/porting/fal_flash_stm32f2_port.c" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name=""/>
 					</sourceEntries>
 				</configuration>
 			</storageModule>
diff --git a/demos/stm32f405rg_spi_flash/.settings/stm32f405.JLink.Debug.rttlaunch b/demos/stm32f405rg_spi_flash/.settings/stm32f405.JLink.Debug.rttlaunch
index 63648e6..2c162a7 100644
--- a/demos/stm32f405rg_spi_flash/.settings/stm32f405.JLink.Debug.rttlaunch
+++ b/demos/stm32f405rg_spi_flash/.settings/stm32f405.JLink.Debug.rttlaunch
@@ -29,7 +29,7 @@
 <stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.gdbServerDeviceEndianness" value="little"/>
 <stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.gdbServerDeviceName" value="STM32F405RG"/>
 <stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.gdbServerDeviceSpeed" value="1000"/>
-<stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.gdbServerExecutable" value="C:\Program Files (x86)\SEGGER\JLink_V490\JLinkGDBServerCL.exe"/>
+<stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.gdbServerExecutable" value="${jlink_path}/${jlink_gdbserver}"/>
 <intAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.gdbServerGdbPortNumber" value="2331"/>
 <stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.gdbServerLog" value=""/>
 <stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.gdbServerOther" value="-singlerun"/>
@@ -37,7 +37,7 @@
 <intAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.gdbServerSwoPortNumber" value="2332"/>
 <intAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.gdbServerTelnetPortNumber" value="2333"/>
 <stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.interfaceSpeed" value="auto"/>
-<stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.jlinkExecutable" value="C:\Program Files (x86)\SEGGER\JLink_V490\JLink.exe"/>
+<stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.jlinkExecutable" value="${jlink_path}/JLink.exe""/>
 <stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.otherInitCommands" value=""/>
 <stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.otherRunCommands" value=""/>
 <stringAttribute key="ilg.gnumcueclipse.debug.gdbjtag.jlink.secondResetType" value=""/>