diff --git a/bsp/stm32f10x/applications/SConscript b/bsp/stm32f10x/applications/SConscript
index 01eb940dfb35f92c503a78b0b49a4354590f9f3a..4289435f37c7a062bfeb69f4bc809d2841642bea 100644
--- a/bsp/stm32f10x/applications/SConscript
+++ b/bsp/stm32f10x/applications/SConscript
@@ -2,8 +2,16 @@ Import('RTT_ROOT')
 Import('rtconfig')
 from building import *
 
-cwd     = os.path.join(str(Dir('#')), 'applications')
-src	= Glob('*.c')
+cwd = os.path.join(str(Dir('#')), 'applications')
+
+src = Split("""
+application.c
+startup.c
+""")
+
+if GetDepend('RT_USING_CAN'):
+    src += ['canapp.c']
+
 CPPPATH = [cwd, str(Dir('#'))]
 
 group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
diff --git a/bsp/stm32f10x/drivers/SConscript b/bsp/stm32f10x/drivers/SConscript
index 30a848fc40a99cc715935b83d4a78f5f807d8775..6be188e0f07105d3bacc84b7636efe23be51928e 100644
--- a/bsp/stm32f10x/drivers/SConscript
+++ b/bsp/stm32f10x/drivers/SConscript
@@ -12,6 +12,10 @@ led.c
 usart.c
 """)
 
+# add canbus driver.
+if GetDepend('RT_USING_CAN'):
+    src += ['bxcan.c']
+
 # add Ethernet drivers.
 if GetDepend('RT_USING_LWIP'):
     src += ['dm9000a.c']
diff --git a/bsp/stm32f10x/drivers/bxcan.c b/bsp/stm32f10x/drivers/bxcan.c
index e19d971123ebc79f2194417eeaa6e5290cc01c77..071d05e8ccc600545dcccc123eb333743f2de175 100644
--- a/bsp/stm32f10x/drivers/bxcan.c
+++ b/bsp/stm32f10x/drivers/bxcan.c
@@ -1575,4 +1575,4 @@ int stm32_bxcan_init(void)
 }
 INIT_BOARD_EXPORT(stm32_bxcan_init);
 
-#endif /*RT_USING_CAN2*/
+#endif /*RT_USING_CAN*/
diff --git a/bsp/stm32f10x/rtconfig.h b/bsp/stm32f10x/rtconfig.h
index f4488460019f6de72a107bf352218fa4a31720ad..e2330065099290d67907777ef46372084396d713 100644
--- a/bsp/stm32f10x/rtconfig.h
+++ b/bsp/stm32f10x/rtconfig.h
@@ -82,7 +82,7 @@
 
 #define RT_USING_PIN
 
-#define RT_USING_CAN
+//#define RT_USING_CAN
 
 #define RT_CAN_USING_BUS_HOOK