diff --git a/bsp/simulator/SConstruct b/bsp/simulator/SConstruct
index 12dbd7a02..bc6db0ef8 100755
--- a/bsp/simulator/SConstruct
+++ b/bsp/simulator/SConstruct
@@ -51,13 +51,34 @@ if rtconfig.PLATFORM == 'cl':
     env.Append(LINKFLAGS=rtconfig.LFLAGS)
     env['LIBS']=libs
     env['CPPDEFINES']=definitions
+elif rtconfig.PLATFORM == 'mingw':
+    libs = Split('''
+        winmm
+        gdi32
+        winspool
+        comdlg32
+        advapi32
+        shell32
+        ole32
+        oleaut32
+        uuid
+        odbc32
+        odbccp32
+        ''')
+    TARGET = 'rtthread-win32.' + rtconfig.TARGET_EXT
+    env = Environment(tools = ['mingw'],
+        AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
+        CC = rtconfig.CC, CCFLAGS = rtconfig.CFLAGS,
+        AR = rtconfig.AR, ARFLAGS = '-rc',
+        LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
+    env['LIBS']=libs
+    env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
 else:
     TARGET = 'rtthread'
     env.Append(CCFLAGS=rtconfig.CFLAGS)
     env.Append(LINKFLAGS=rtconfig.LFLAGS)
     env.Append(LIBS=['m'])
 
-
 # prepare building environment
 
 objs = PrepareBuilding(env, RTT_ROOT, has_libcpu=False, remove_components=['rtgui'])
diff --git a/bsp/simulator/drivers/board.c b/bsp/simulator/drivers/board.c
index 669628df7..dcb8d9a04 100755
--- a/bsp/simulator/drivers/board.c
+++ b/bsp/simulator/drivers/board.c
@@ -53,7 +53,7 @@ void rt_hw_win32_low_cpu(void)
 #endif
 }
 
-#ifdef _WIN32
+#ifdef _MSC_VER
 #ifndef _CRT_TERMINATE_DEFINED
 #define _CRT_TERMINATE_DEFINED
 _CRTIMP __declspec(noreturn) void __cdecl exit(__in int _Code);
diff --git a/bsp/simulator/mingw.ld b/bsp/simulator/mingw.ld
new file mode 100644
index 000000000..d5ff228fa
--- /dev/null
+++ b/bsp/simulator/mingw.ld
@@ -0,0 +1,222 @@
+/* Default linker script, for normal executables */
+OUTPUT_FORMAT(pei-i386)
+SEARCH_DIR("/usr/local/mingw32/lib"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib");
+SECTIONS
+{
+  /* Make the virtual address and file offset synced if the alignment is
+     lower than the target page size. */
+  . = SIZEOF_HEADERS;
+  . = ALIGN(__section_alignment__);
+  .text  __image_base__ + ( __section_alignment__ < 0x1000 ? . : __section_alignment__ ) :
+  {
+     *(.init)
+    *(.text)
+    *(SORT(.text$*))
+    *(.glue_7t)
+    *(.glue_7)
+     ___CTOR_LIST__ = .; __CTOR_LIST__ = . ;
+			LONG (-1);*(.ctors); *(.ctor); *(SORT(.ctors.*));  LONG (0);
+     ___DTOR_LIST__ = .; __DTOR_LIST__ = . ;
+			LONG (-1); *(.dtors); *(.dtor); *(SORT(.dtors.*));  LONG (0);
+     *(.fini)
+    /* ??? Why is .gcc_exc here?  */
+     *(.gcc_exc)
+    PROVIDE (etext = .);
+     *(.gcc_except_table)
+  }
+
+  /* setction information for finsh shell begin */
+  . = ALIGN(__section_alignment__);
+  FSymTab () : 
+  {
+      ___fsymtab_start = .; __fsymtab_start = .;
+      KEEP(*(FSymTab))
+      ___fsymtab_end = .; __fsymtab_end = .;
+  }
+  . = ALIGN(__section_alignment__);
+  VSymTab () : 
+  {
+      ___vsymtab_start = .; __vsymtab_start = .;
+      KEEP(*(VSymTab))
+      ___vsymtab_end = .; __vsymtab_end = .;
+  }
+  /* setction information for finsh shell end */
+  
+  /* The Cygwin32 library uses a section to avoid copying certain data
+     on fork.  This used to be named ".data".  The linker used
+     to include this between __data_start__ and __data_end__, but that
+     breaks building the cygwin32 dll.  Instead, we name the section
+     ".data_cygwin_nocopy" and explictly include it after __data_end__. */
+  .data BLOCK(__section_alignment__) :
+  {
+    __data_start__ = . ;
+    *(.data)
+    *(.data2)
+    *(SORT(.data$*))
+    *(.jcr)
+    __data_end__ = . ;
+    *(.data_cygwin_nocopy)
+  }
+
+  .rdata BLOCK(__section_alignment__) :
+  {
+    *(.rdata)
+             *(SORT(.rdata$*))
+     *(.eh_frame)
+    ___RUNTIME_PSEUDO_RELOC_LIST__ = .;
+    __RUNTIME_PSEUDO_RELOC_LIST__ = .;
+    *(.rdata_runtime_pseudo_reloc)
+    ___RUNTIME_PSEUDO_RELOC_LIST_END__ = .;
+    __RUNTIME_PSEUDO_RELOC_LIST_END__ = .;
+  }
+  .pdata BLOCK(__section_alignment__) :
+  {
+    *(.pdata)
+  }
+  .bss BLOCK(__section_alignment__) :
+  {
+    __bss_start__ = . ;
+    *(.bss)
+    *(COMMON)
+    __bss_end__ = . ;
+  }
+  .edata BLOCK(__section_alignment__) :
+  {
+    *(.edata)
+  }
+  /DISCARD/ :
+  {
+    *(.debug$S)
+    *(.debug$T)
+    *(.debug$F)
+    *(.drectve)
+  }
+  .idata BLOCK(__section_alignment__) :
+  {
+    /* This cannot currently be handled with grouped sections.
+	See pe.em:sort_sections.  */
+    SORT(*)(.idata$2)
+    SORT(*)(.idata$3)
+    /* These zeroes mark the end of the import list.  */
+    LONG (0); LONG (0); LONG (0); LONG (0); LONG (0);
+    SORT(*)(.idata$4)
+    SORT(*)(.idata$5)
+    SORT(*)(.idata$6)
+    SORT(*)(.idata$7)
+  }
+  .CRT BLOCK(__section_alignment__) :
+  {
+    ___crt_xc_start__ = . ;
+    *(SORT(.CRT$XC*))  /* C initialization */
+    ___crt_xc_end__ = . ;
+    ___crt_xi_start__ = . ;
+    *(SORT(.CRT$XI*))  /* C++ initialization */
+    ___crt_xi_end__ = . ;
+    ___crt_xl_start__ = . ;
+    *(SORT(.CRT$XL*))  /* TLS callbacks */
+    /* ___crt_xl_end__ is defined in the TLS Directory support code */
+    ___crt_xp_start__ = . ;
+    *(SORT(.CRT$XP*))  /* Pre-termination */
+    ___crt_xp_end__ = . ;
+    ___crt_xt_start__ = . ;
+    *(SORT(.CRT$XT*))  /* Termination */
+    ___crt_xt_end__ = . ;
+  }
+  .tls BLOCK(__section_alignment__) :
+  {
+    ___tls_start__ = . ;
+    *(.tls)
+    *(.tls$)
+    *(SORT(.tls$*))
+    ___tls_end__ = . ;
+  }
+  .endjunk BLOCK(__section_alignment__) :
+  {
+    /* end is deprecated, don't use it */
+    PROVIDE (end = .);
+    PROVIDE ( _end = .);
+     __end__ = .;
+  }
+  .rsrc BLOCK(__section_alignment__) :
+  {
+    *(.rsrc)
+    *(SORT(.rsrc$*))
+  }
+  .reloc BLOCK(__section_alignment__) :
+  {
+    *(.reloc)
+  }
+  .stab BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.stab)
+  }
+  .stabstr BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.stabstr)
+  }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section.  Unlike other targets that fake this by putting the
+     section VMA at 0, the PE format will not allow it.  */
+  /* DWARF 1.1 and DWARF 2.  */
+  .debug_aranges BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_aranges)
+  }
+  .debug_pubnames BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_pubnames)
+  }
+  /* DWARF 2.  */
+  .debug_info BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_info) *(.gnu.linkonce.wi.*)
+  }
+  .debug_abbrev BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_abbrev)
+  }
+  .debug_line BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_line)
+  }
+  .debug_frame BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_frame)
+  }
+  .debug_str BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_str)
+  }
+  .debug_loc BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_loc)
+  }
+  .debug_macinfo BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_macinfo)
+  }
+  /* SGI/MIPS DWARF 2 extensions.  */
+  .debug_weaknames BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_weaknames)
+  }
+  .debug_funcnames BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_funcnames)
+  }
+  .debug_typenames BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_typenames)
+  }
+  .debug_varnames BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_varnames)
+  }
+  /* DWARF 3.  */
+  .debug_ranges BLOCK(__section_alignment__) (NOLOAD) :
+  {
+    *(.debug_ranges)
+  }
+}
+
diff --git a/bsp/simulator/rtconfig.h b/bsp/simulator/rtconfig.h
index 3e9fb2e74..470d0af06 100755
--- a/bsp/simulator/rtconfig.h
+++ b/bsp/simulator/rtconfig.h
@@ -83,6 +83,7 @@
 /* SECTION: Device System */
 /* Using Device System */
 #define RT_USING_DEVICE
+#define RT_USING_DEVICE_IPC
 /* #define RT_USING_UART1 */
 
 /* SECTION: Console options */
@@ -96,9 +97,9 @@
 
 /* SECTION: MTD interface options */
 /* using mtd nand flash */
-#define RT_USING_MTD_NAND
+/* #define RT_USING_MTD_NAND */
 /* using mtd nor flash */
-#define RT_USING_MTD_NOR
+/* #define RT_USING_MTD_NOR */
 
 /* SECTION: finsh, a C-Express shell */
 #define RT_USING_FINSH
@@ -107,7 +108,7 @@
 #define FINSH_USING_DESCRIPTION
 
 /* SECTION: device file system */
-#define RT_USING_DFS
+/* #define RT_USING_DFS */
 #define DFS_FILESYSTEM_TYPES_MAX  8
 
 /* DFS: ELM FATFS options */
@@ -126,7 +127,7 @@
 /* #define RT_USING_DFS_NFS */
 
 /* DFS: UFFS nand file system options */
-#define RT_USING_DFS_UFFS
+/* #define RT_USING_DFS_UFFS */
 /* configuration for uffs, more to see dfs_uffs.h and uffs_config.h */
 #define RT_CONFIG_UFFS_ECC_MODE  UFFS_ECC_HW_AUTO
 /* enable this ,you need provide a mark_badblock/check_block function */
@@ -138,7 +139,7 @@
 /* DFS: windows share directory mounted to rt-thread/dfs  */
 /* only used in bsp/simulator */
 #ifdef _WIN32
-#define RT_USING_DFS_WINSHAREDIR
+//#define RT_USING_DFS_WINSHAREDIR
 #endif
 
 /* the max number of mounted file system */
@@ -199,7 +200,7 @@
 #define RT_LWIP_TCP_WND		8192
 
 /* SECTION: RT-Thread/GUI */
-#define RT_USING_RTGUI
+/* #define RT_USING_RTGUI */
 
 /* name length of RTGUI object */
 #define RTGUI_NAME_MAX		12
diff --git a/bsp/simulator/rtconfig.py b/bsp/simulator/rtconfig.py
index 4007e0b1d..3d0c641ef 100755
--- a/bsp/simulator/rtconfig.py
+++ b/bsp/simulator/rtconfig.py
@@ -1,7 +1,7 @@
 # toolchains options
 ARCH='sim'
 #CROSS_TOOL='msvc' or 'gcc' or 'mingw' (mingw is not supported yet!)
-CROSS_TOOL='msvc'
+CROSS_TOOL='mingw'
 
 # cross_tool provides the cross compiler
 # EXEC_PATH is the compiler execute path 
@@ -10,11 +10,20 @@ if  CROSS_TOOL == 'gcc':
     PLATFORM  = 'gcc'
     EXEC_PATH = '/usr/bin/gcc'
 
-if  CROSS_TOOL == 'msvc':
+elif  CROSS_TOOL == 'mingw':
+    CPU       = 'win32'
+    PLATFORM  = 'mingw'
+    EXEC_PATH = r'D:\Program Files\CodeBlocks\MinGW\bin'
+
+elif  CROSS_TOOL == 'msvc':
     CPU       = 'win32'
     PLATFORM  = 'cl'
     EXEC_PATH = ''
 
+else :
+    print "bad CROSS TOOL!"
+    exit(1)
+
 BUILD = 'debug'
 #BUILD = ''
 
@@ -48,6 +57,35 @@ if PLATFORM == 'gcc':
 
     POST_ACTION = ''
 
+elif PLATFORM == 'mingw':
+    # toolchains
+    PREFIX = ''
+    CC = PREFIX + 'gcc'
+    AS = PREFIX + 'gcc'
+    AR = PREFIX + 'ar'
+    LINK = PREFIX + 'gcc'
+    TARGET_EXT = 'exe'
+    SIZE = PREFIX + 'size'
+    OBJDUMP = PREFIX + 'objdump'
+    OBJCPY = PREFIX + 'objcopy'
+
+    DEVICE = ' -ffunction-sections -fdata-sections'
+    DEVICE = '  '
+    CFLAGS = ' -Wl,--output-def '
+    AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp'
+    #LFLAGS = DEVICE + ' -Wl,-Map=rtthread-win32.map -T mingw.ld'
+    LFLAGS = DEVICE + ' -Wl,-Map=rtthread-win32.map --gc-sections,--whole-archive -T mingw.ld '
+    CPATH = ''
+    LPATH = ''
+
+    if BUILD == 'debug':
+        CFLAGS += ' -g -O0 -gdwarf-2'
+        AFLAGS += ' -gdwarf-2'
+    else:
+        CFLAGS += ' -O2'
+
+    POST_ACTION = ''
+
 elif PLATFORM == 'cl':
     # toolchains
     PREFIX = ''
diff --git a/libcpu/SConscript b/libcpu/SConscript
index a1609d5fd..0d0097609 100644
--- a/libcpu/SConscript
+++ b/libcpu/SConscript
@@ -18,6 +18,9 @@ if rtconfig.PLATFORM == 'iar':
 if rtconfig.PLATFORM == 'cl':
 	src = Glob(path + '/*.c')
 
+if rtconfig.PLATFORM == 'mingw':
+	src = Glob(path + '/*.c')
+
 CPPPATH = [RTT_ROOT + '/libcpu/' + rtconfig.ARCH + '/' + rtconfig.CPU, RTT_ROOT + '/libcpu/' + rtconfig.ARCH + '/common']
 group = DefineGroup(rtconfig.CPU.upper(), src, depend = [''], CPPPATH = CPPPATH)
 
diff --git a/libcpu/sim/win32/cpu_port.c b/libcpu/sim/win32/cpu_port.c
index 38c387b19..6bf3c79cf 100644
--- a/libcpu/sim/win32/cpu_port.c
+++ b/libcpu/sim/win32/cpu_port.c
@@ -111,6 +111,7 @@ static DWORD WINAPI ThreadforKeyGet(LPVOID lpParam);
 
 static void SetThreadName(DWORD dwThreadID, char* threadName)
 {
+#if defined(_MSC_VER)
 	THREADNAME_INFO info;
 	info.dwType = 0x1000;
 	info.szName = threadName;
@@ -124,6 +125,7 @@ static void SetThreadName(DWORD dwThreadID, char* threadName)
 	__except(EXCEPTION_EXECUTE_HANDLER)
 	{
 	}
+#endif
 }
 
 /*