diff --git a/bsp/pic32ethernet/application.c b/bsp/pic32ethernet/application.c
index f0d6e3c3b8ffc77aaec95ab5ec2310447e80903a..19e7479d400c9c0688a180eeea7dfe876173d23b 100644
--- a/bsp/pic32ethernet/application.c
+++ b/bsp/pic32ethernet/application.c
@@ -14,37 +14,54 @@
 
 // Adds support for PIC32 Peripheral library functions and macros
 #include <plib.h>
+#include <rtthread.h>
 
-static void delay(void)
+ALIGN(RT_ALIGN_SIZE)
+int thread_led1_stack[512];
+struct rt_thread thread_led1;
+void thread_led1_entry(void* parameter)
 {
-    volatile unsigned long i;
-    for(i=0;i<500000;i++);
+    // configure PORTD.RD1 = output
+    mPORTDSetPinsDigitalOut(BIT_1);
+    while(1)
+    {
+        // .. Toggle the LED
+        mPORTDToggleBits(BIT_1);
+        rt_thread_delay( RT_TICK_PER_SECOND ); /* delay 1s */
+    }
+}
+
+static void thread_led2_entry(void* parameter)
+{
+	// configure PORTD.RD2 = output
+    mPORTDSetPinsDigitalOut(BIT_2);
+
+    while (1)
+    {
+        // .. Toggle the LED
+        mPORTDToggleBits(BIT_2);
+        rt_thread_delay( RT_TICK_PER_SECOND*5 ); /* delay 1s */
+    }
 }
 
 int rt_application_init(void)
 {
-    PORTSetPinsDigitalOut(IOPORT_D, BIT_0);
-
-   while(1)
-   {
-       delay();
-       delay();
-       delay();
-       delay();
-       delay();
-       delay();
-       delay();
-       delay();
-       delay();
-       delay();
-       delay();
-       delay();
-       delay();
-       delay();
-       PORTSetBits(IOPORT_D, BIT_0);
-       delay();
-       PORTClearBits(IOPORT_D, BIT_0);
-   }
+    rt_thread_t thread;
+
+    rt_thread_init(&thread_led1,
+                   "led1",
+                   thread_led1_entry, RT_NULL,
+                   &thread_led1_stack[0], sizeof(thread_led1_stack),
+                   20, 10);
+    rt_thread_startup(&thread_led1);
+
+    /* create led2 thread */
+    thread = rt_thread_create("led2",
+                              thread_led2_entry, RT_NULL,
+                              1024,
+                              20, 5);
+    if (thread != RT_NULL)
+        rt_thread_startup(thread);
 
     return 0;
 }
diff --git a/bsp/pic32ethernet/board.c b/bsp/pic32ethernet/board.c
index b247c9c54b2544fb2d94b069bbb1dbb08af82ae6..ba16e5cbc60b0dd76a291f6a978e10300fb6ce37 100644
--- a/bsp/pic32ethernet/board.c
+++ b/bsp/pic32ethernet/board.c
@@ -14,6 +14,7 @@
 
 // Adds support for PIC32 Peripheral library functions and macros
 #include <plib.h>
+#include <rtthread.h>
 
 // Configuration Bits
 #pragma config FNOSC    = PRIPLL        // Oscillator Selection
@@ -35,7 +36,12 @@
 #pragma config DEBUG    = OFF           // Debugger Disabled for Starter Kit
 
 //  The following is used by the main application
-#define SYS_FREQ		(80000000)
+#define SYS_FREQ		(80000000UL)
+
+#define PB_DIV         		8
+#define PRESCALE       		256
+#define TOGGLES_PER_SEC		RT_TICK_PER_SECOND
+#define T1_TICK       		(SYS_FREQ/PB_DIV/PRESCALE/TOGGLES_PER_SEC)
 
 static void rt_hw_show_info(void)
 {
@@ -45,6 +51,17 @@ static void rt_hw_show_info(void)
     rt_kprintf("CPU_FREQ:         %uMHz\r\n",SYS_FREQ/1000000UL);
 }
 
+static void rt_hw_timer_handler(void)
+{
+    /* enter interrupt */
+    rt_interrupt_enter();
+
+    rt_tick_increase();
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+
 /**
 * This function will initial FM3 Easy Kit board.
  */
@@ -59,5 +76,56 @@ void rt_hw_board_init()
    	rt_hw_console_init();
 
    	rt_hw_show_info();
+
+    // enable multi-vector interrupts
+    INTEnableSystemMultiVectoredInt();
+    rt_hw_interrupt_disable();
+
+//    // STEP 2. configure the core timer
+//    OpenCoreTimer(CORE_TICK_RATE);
+//
+//    // set up the core timer interrupt with a prioirty of 2 and zero sub-priority
+//    mConfigIntCoreTimer((CT_INT_ON | CT_INT_PRIOR_2 | CT_INT_SUB_PRIOR_0));
+
+    // STEP 2. configure Timer 1 using internal clock, 1:256 prescale
+    OpenTimer1(T1_ON | T1_SOURCE_INT | T1_PS_1_256, T1_TICK);
+    // set up the timer interrupt with a priority of 2
+    ConfigIntTimer1(T1_INT_ON | T1_INT_PRIOR_2);
+
+    /* Setup the software interrupt. */
+	mConfigIntCoreSW0( CSW_INT_ON | CSW_INT_PRIOR_1 | CSW_INT_SUB_PRIOR_0 );
+
+    // configure PORTD.RD0 = output,Toggle in CoreSW0Handler.
+    mPORTDSetPinsDigitalOut(BIT_0);
 }
 
+void __ISR(_TIMER_1_VECTOR, ipl2) Timer1Handler(void)
+{
+    // clear the interrupt flag
+    mT1ClearIntFlag();
+
+    // .. things to do
+    rt_hw_timer_handler();
+
+//    // .. in this case, toggle the LED
+//    mPORTDToggleBits(BIT_1);
+}
+
+//void __ISR(_CORE_TIMER_VECTOR, ipl2) CoreTimerHandler(void)
+//{
+//    // clear the interrupt flag
+//    mCTClearIntFlag();
+//
+//    // .. things to do
+//    rt_hw_timer_handler();
+//
+//    // update the period
+//    UpdateCoreTimer(CORE_TICK_RATE);
+//
+//	// .. Toggle the LED
+//    mPORTDToggleBits(BIT_1);
+//}
+
+
+void __ISR(_CORE_SOFTWARE_0_VECTOR, ipl2) CoreSW0Handler(void);
+
diff --git a/bsp/pic32ethernet/console.c b/bsp/pic32ethernet/console.c
index 09295bfc8daae0d62bb496c71e9ec5b5df8e3dab..dc31ad406e6701d2a2f4058d589825da941266d6 100644
--- a/bsp/pic32ethernet/console.c
+++ b/bsp/pic32ethernet/console.c
@@ -24,7 +24,7 @@
 void rt_hw_console_init(void)
 {
 	//Initialize the DB_UTILS IO channel
-	DBINIT();
+//	DBINIT();
 }
 
 /**
@@ -34,6 +34,6 @@ void rt_hw_console_init(void)
  */
 void rt_hw_console_output(const char* str)
 {
-    DBPRINTF(str);
+//    DBPRINTF(str);
 }
 
diff --git a/bsp/pic32ethernet/project.cbp b/bsp/pic32ethernet/project.cbp
index 16cb7c2de652394970aa9b23a00106c32554eb6f..28543d7b5994c07837b4b376157933565a9ed96b 100644
--- a/bsp/pic32ethernet/project.cbp
+++ b/bsp/pic32ethernet/project.cbp
@@ -36,6 +36,16 @@
 		<Unit filename="..\..\include\rthw.h" />
 		<Unit filename="..\..\include\rtm.h" />
 		<Unit filename="..\..\include\rtthread.h" />
+		<Unit filename="..\..\libcpu\mips\common\asm.h" />
+		<Unit filename="..\..\libcpu\mips\common\cache.c">
+			<Option compilerVar="CC" />
+		</Unit>
+		<Unit filename="..\..\libcpu\mips\common\cache.h" />
+		<Unit filename="..\..\libcpu\mips\common\exception.h" />
+		<Unit filename="..\..\libcpu\mips\common\mips.inc" />
+		<Unit filename="..\..\libcpu\mips\common\mipscfg.h" />
+		<Unit filename="..\..\libcpu\mips\common\mipsregs.h" />
+		<Unit filename="..\..\libcpu\mips\common\stackframe.h" />
 		<Unit filename="..\..\libcpu\mips\pic32\context_gcc.S" />
 		<Unit filename="..\..\libcpu\mips\pic32\interrupt.c">
 			<Option compilerVar="CC" />
diff --git a/bsp/pic32ethernet/project.mcp b/bsp/pic32ethernet/project.mcp
index 802e2bd324a4d5d248a5a08dc0da0fa58db65e52..8bb29c4bee85c83d44c322afbb88cb6c3d2d52db 100644
--- a/bsp/pic32ethernet/project.mcp
+++ b/bsp/pic32ethernet/project.mcp
@@ -45,7 +45,8 @@ file_017=.
 file_018=pic32
 file_019=pic32
 file_020=.
-file_021=.
+file_021=pic32
+file_022=.
 [GENERATED_FILES]
 file_000=no
 file_001=no
@@ -69,6 +70,7 @@ file_018=no
 file_019=no
 file_020=no
 file_021=no
+file_022=no
 [OTHER_FILES]
 file_000=no
 file_001=no
@@ -92,6 +94,7 @@ file_018=no
 file_019=no
 file_020=no
 file_021=no
+file_022=no
 [FILE_INFO]
 file_000=board.c
 file_001=application.c
@@ -114,12 +117,13 @@ file_017=startup.c
 file_018=..\..\libcpu\mips\pic32\context_gcc.S
 file_019=..\..\libcpu\mips\pic32\stack.c
 file_020=console.c
-file_021=rtconfig.h
+file_021=..\..\libcpu\mips\pic32\interrupt.c
+file_022=rtconfig.h
 [SUITE_INFO]
 suite_guid={14495C23-81F8-43F3-8A44-859C583D7760}
 suite_state=
 [TOOL_SETTINGS]
-TS{CB0AF4B8-4022-429D-8F99-8A56782B2C6D}=
+TS{CB0AF4B8-4022-429D-8F99-8A56782B2C6D}=--gdwarf-2
 TS{9C698E0A-CBC9-4EFF-AE7D-B569F93E7322}=-g -DPIC32_STARTER_KIT
 TS{77F59DA1-3C53-4677-AC5F-A03EB0125170}=-Map="$(BINDIR_)$(TARGETBASE).map" -o"$(BINDIR_)$(TARGETBASE).$(TARGETSUFFIX)"
 TS{0396C0A1-9052-4E4F-8B84-EF0162B1B4E9}=
diff --git a/bsp/pic32ethernet/project.mcw b/bsp/pic32ethernet/project.mcw
index 8a263ddf5d6c8df6a384e9131b7a22079d28ab8f..6473508f56f33a31c93f4f9d7f9267a1fc3583f2 100644
Binary files a/bsp/pic32ethernet/project.mcw and b/bsp/pic32ethernet/project.mcw differ
diff --git a/bsp/pic32ethernet/rtconfig.h b/bsp/pic32ethernet/rtconfig.h
index c109fe7517a6b9e99828f9286cee70db1bf4ad38..de33c2e4bb0853454c15d25d51133e96fbf1a8d0 100644
--- a/bsp/pic32ethernet/rtconfig.h
+++ b/bsp/pic32ethernet/rtconfig.h
@@ -55,7 +55,7 @@
 #define RT_USING_MEMPOOL
 
 /* Using Dynamic Heap Management */
-//#define RT_USING_HEAP
+#define RT_USING_HEAP
 
 /* Using Small MM */
 #define RT_USING_SMALL_MEM
diff --git a/bsp/pic32ethernet/startup.c b/bsp/pic32ethernet/startup.c
index 8d407c1a2cdbc7d24c55f15a620362c679f89184..e26bd5885d3088d9a4ee0e68163f3e2d47b32bec 100644
--- a/bsp/pic32ethernet/startup.c
+++ b/bsp/pic32ethernet/startup.c
@@ -14,6 +14,10 @@
 
 // Adds support for PIC32 Peripheral library functions and macros
 #include <plib.h>
+#include <rtthread.h>
+
+extern int _ramfunc_end;
+#define PIC32_SRAM_END (0xA0000000+0x8000) //795F512L 512KB
 
 /**
  * This function will startup RT-Thread RTOS.
@@ -35,16 +39,10 @@ void rtthread_startup(void)
 	/* init timer system */
 	rt_system_timer_init();
 
-//#ifdef RT_USING_HEAP
-//	#ifdef __CC_ARM
-//		rt_system_heap_init((void*)&Image$$RW_IRAM1$$ZI$$Limit, (void*)FM3_SRAM_END);
-//	#elif __ICCARM__
-//		rt_system_heap_init(__segment_end("HEAP"), (void*)FM3_SRAM_END);
-//	#else
-//		/* init memory system */
-//		rt_system_heap_init((void*)&__bss_end, (void*)FM3_SRAM_END);
-//	#endif
-//#endif
+#ifdef RT_USING_HEAP
+    /* init memory system */
+    rt_system_heap_init((void*)&_ramfunc_end, (void*)PIC32_SRAM_END);
+#endif
 
 	/* init scheduler system */
 	rt_system_scheduler_init();
@@ -96,8 +94,8 @@ void rtthread_startup(void)
 
 int main(void)
 {
-//	/* disable interrupt first */
-//	rt_hw_interrupt_disable();
+	/* disable interrupt first */
+	rt_hw_interrupt_disable();
 
 	/* startup RT-Thread RTOS */
 	rtthread_startup();