diff --git a/bsp/simulator/rtconfig.py b/bsp/simulator/rtconfig.py
index da63b843e..fbff96e8b 100755
--- a/bsp/simulator/rtconfig.py
+++ b/bsp/simulator/rtconfig.py
@@ -1,23 +1,19 @@
 # toolchains options
 ARCH='sim'
-#CPU='win32'
-#CPU='posix'
-CPU='posix'
-CROSS_TOOL='gcc' #msvc # gcc
-
-# lcd panel options
-# 'FMT0371','ILI932X', 'SSD1289'
-# RT_USING_LCD_TYPE = 'SSD1289'
+#CROSS_TOOL='msvc' or 'gcc' or 'mingw' (mingw is not supported yet!)
+CROSS_TOOL='msvc'
 
 # cross_tool provides the cross compiler
-# EXEC_PATH is the compiler execute path, for example, CodeSourcery, Keil MDK, IAR
+# EXEC_PATH is the compiler execute path 
 if  CROSS_TOOL == 'gcc':
-	PLATFORM 	= 'gcc'
-	EXEC_PATH 	= '/usr/bin/gcc'
+    CPU       = 'posix'
+    PLATFORM  = 'gcc'
+    EXEC_PATH = '/usr/bin/gcc'
 
 if  CROSS_TOOL == 'msvc':
-	PLATFORM 	= 'cl'
-	EXEC_PATH = ''
+    CPU       = 'win32'
+    PLATFORM  = 'cl'
+    EXEC_PATH = ''
 
 BUILD = 'debug'
 #BUILD = ''
@@ -38,9 +34,7 @@ if PLATFORM == 'gcc':
     DEVICE = '  '
     CFLAGS = DEVICE + ' -I/usr/include -w -D_REENTRANT'
     AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp'
-    #LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread-linux.map,-cref,-u,Reset_Handler -T stm32_rom.ld'
     #LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread-linux.map -lpthread'
-    #LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rtthread-linux.map -pthread'
     LFLAGS = DEVICE + ' -Wl,-Map=rtthread-linux.map -pthread -T gcc.ld'
 
     CPATH = ''