diff --git a/Sys.cpp b/Sys.cpp
index 1a2ff519..54a96238 100644
--- a/Sys.cpp
+++ b/Sys.cpp
@@ -216,7 +216,6 @@ TSys::TSys()
 
     Interrupt.Init();
 
-	//_Scheduler = NULL;
 	OnStart = NULL;
 }
 
@@ -546,63 +545,36 @@ void TSys::ToHex(byte* buf, byte* src, uint len)
 
 // 任务
 #include "Task.h"
-// 任务类
-TaskScheduler* _Scheduler;
 
 // 创建任务，返回任务编号。priority优先级，dueTime首次调度时间us，period调度间隔us，-1表示仅处理一次
-uint TSys::AddTask(Action func, void* param, ulong dueTime, long period)
+uint TSys::AddTask(Action func, void* param, ulong dueTime, long period, string name)
 {
-	// 屏蔽中断，否则可能有线程冲突
-	SmartIRQ irq;
-
-	if(!_Scheduler) _Scheduler = new TaskScheduler("系统");
-
-	return _Scheduler->Add(func, param, dueTime, period);
+	return Scheduler.Add(func, param, dueTime, period, name);
 }
 
 void TSys::RemoveTask(uint taskid)
 {
-	assert_ptr(_Scheduler);
-
-	_Scheduler->Remove(taskid);
-}
-
-void TSys::SetTask(uint taskid, bool enable)
-{
-	Task* task = (*_Scheduler)[taskid];
-	if(task) task->Enable = enable;
+	Scheduler.Remove(taskid);
 }
 
 void TSys::Start()
 {
-	if(!_Scheduler) _Scheduler = new TaskScheduler("系统");
-
 #if DEBUG
 	//AddTask(ShowTime, NULL, 2000000, 2000000);
 #endif
 	if(OnStart)
 		OnStart();
 	else
-		_Scheduler->Start();
-}
-
-void TSys::StartInternal()
-{
-	_Scheduler->Start();
-}
-
-void TSys::Stop()
-{
-	_Scheduler->Stop();
+		Scheduler.Start();
 }
 
 void TimeSleep(uint us)
 {
 	// 在这段时间里面，去处理一下别的任务
-	if(_Scheduler && (!us || us >= 1000))
+	if(!us || us >= 1000)
 	{
 		// 记录当前正在执行任务
-		Task* task = _Scheduler->Current;
+		Task* task = Scheduler.Current;
 
 		ulong start = Time.Current();
 		// 1ms一般不够调度新任务，留给硬件等待
@@ -613,7 +585,7 @@ void TimeSleep(uint us)
 		{
 			ulong start2 = Time.Current();
 
-			_Scheduler->Execute(us);
+			Scheduler.Execute(us);
 
 			ulong now = Time.Current();
 			cost += (int)(now - start2);
@@ -626,7 +598,7 @@ void TimeSleep(uint us)
 
 		if(task)
 		{
-			_Scheduler->Current = task;
+			Scheduler.Current = task;
 			task->SleepTime += cost;
 		}
 
diff --git a/Sys.h b/Sys.h
index d8461cd4..c61eed35 100644
--- a/Sys.h
+++ b/Sys.h
@@ -127,25 +127,16 @@ public:
 private:
 	int _Index;	// MCU在型号表中的索引
 
-	// 任务类
-	//TaskScheduler* _Scheduler;
-
 public:
 	// 创建任务，返回任务编号。dueTime首次调度时间us，period调度间隔us，-1表示仅处理一次
-	uint AddTask(Action func, void* param, ulong dueTime = 0, long period = 0);
+	uint AddTask(Action func, void* param, ulong dueTime = 0, long period = 0, string name = NULL);
 	void RemoveTask(uint taskid);
-	void SetTask(uint taskid, bool enable);
 	void Start();	// 开始系统大循环
-	void StartInternal();
 	Func OnStart;
-	void Stop();
 };
 
 extern TSys Sys;		//创建一个全局的Sys对象  会在main函数之前执行构造函数（！！！！！）
 
-// 任务
-//#include "Task.h"
-
 // 内存管理
 #include "Memory.h"
 
diff --git a/Task.cpp b/Task.cpp
index cd57d920..01045ce8 100644
--- a/Task.cpp
+++ b/Task.cpp
@@ -1,9 +1,13 @@
 #include "Task.h"
 
+// 全局任务调度器
+TaskScheduler Scheduler("系统");
+
 Task::Task(TaskScheduler* scheduler)
 {
 	_Scheduler = scheduler;
 
+	Name		= NULL;
 	Times		= 0;
 	CpuTime		= 0;
 	SleepTime	= 0;
@@ -11,15 +15,15 @@ Task::Task(TaskScheduler* scheduler)
 	Enable		= true;
 }
 
-/*Task::~Task()
+Task::~Task()
 {
 	if(ID) _Scheduler->Remove(ID);
-}*/
+}
 
 // 显示状态
 void Task::ShowStatus()
 {
-	debug_printf("Task::Status 任务 %d [%d] 执行 %dus 平均 %dus\r\n", ID, Times, CpuTime, Cost);
+	debug_printf("Task::%s %d [%d] 执行 %dus 平均 %dus\r\n", Name, ID, Times, CpuTime, Cost);
 }
 
 TaskScheduler::TaskScheduler(string name)
@@ -40,14 +44,15 @@ TaskScheduler::~TaskScheduler()
 }
 
 // 创建任务，返回任务编号。dueTime首次调度时间us，period调度间隔us，-1表示仅处理一次
-uint TaskScheduler::Add(Action func, void* param, ulong dueTime, long period)
+uint TaskScheduler::Add(Action func, void* param, ulong dueTime, long period, string name)
 {
-	Task* task = new Task(this);
-	task->ID = _gid++;
-	task->Callback = func;
-	task->Param = param;
-	task->Period = period;
-	task->NextTime = Time.Current() + dueTime;
+	Task* task	= new Task(this);
+	task->ID	= _gid++;
+	task->Name	= name;
+	task->Callback	= func;
+	task->Param		= param;
+	task->Period	= period;
+	task->NextTime	= Time.Current() + dueTime;
 
 	Count++;
 	_Tasks.Add(task);
@@ -59,10 +64,10 @@ uint TaskScheduler::Add(Action func, void* param, ulong dueTime, long period)
 	{
 		uint dt = dueTime / 1000;
 		int  pd = period > 0 ? period / 1000 : period;
-		debug_printf("%s::添加任务%d 0x%08x FirstTime=%ums Period=%dms\r\n", Name, task->ID, func, dt, pd);
+		debug_printf("%s::添加%d %s 0x%08x FirstTime=%ums Period=%dms\r\n", Name, task->ID, name, func, dt, pd);
 	}
 	else
-		debug_printf("%s::添加任务%d 0x%08x FirstTime=%uus Period=%dus\r\n", Name, task->ID, func, (uint)dueTime, (int)period);
+		debug_printf("%s::添加%d %s 0x%08x FirstTime=%uus Period=%dus\r\n", Name, task->ID, name, func, (uint)dueTime, (int)period);
 #endif
 
 	return task->ID;
@@ -77,7 +82,7 @@ void TaskScheduler::Remove(uint taskid)
 		if(task->ID == taskid)
 		{
 			_Tasks.RemoveAt(i);
-			debug_printf("%s::删除任务%d 0x%08x\r\n", Name, task->ID, task->Callback);
+			debug_printf("%s::删除%d %s 0x%08x\r\n", Name, task->ID, task->Name, task->Callback);
 			// 首先清零ID，避免delete的时候再次删除
 			task->ID = 0;
 			delete task;
@@ -92,7 +97,7 @@ void TaskScheduler::Start()
 
 #if DEBUG
 	//Add(ShowTime, NULL, 2000000, 2000000);
-	Add(ShowStatus, this, 10000000, 120000000);
+	Add(ShowStatus, this, 10000000, 120000000, "任务状态");
 #endif
 	debug_printf("%s::准备就绪 开始循环处理%d个任务！\r\n\r\n", Name, Count);
 
@@ -179,7 +184,7 @@ void TaskScheduler::Execute(uint usMax)
 void TaskScheduler::ShowStatus(void* param)
 {
 	TaskScheduler* ts = (TaskScheduler*)param;
-	
+
 	int i = -1;
 	while(ts->_Tasks.MoveNext(i))
 	{
diff --git a/Task.h b/Task.h
index af429375..df06d963 100644
--- a/Task.h
+++ b/Task.h
@@ -6,6 +6,9 @@
 
 class TaskScheduler;
 
+// 全局任务调度器
+extern TaskScheduler Scheduler;
+
 // 任务
 class Task
 {
@@ -18,6 +21,7 @@ private:
 
 public:
 	uint	ID;			// 编号
+	string	Name;		// 名称
 	Action	Callback;	// 回调
 	void*	Param;		// 参数
 	long	Period;		// 周期us
@@ -29,7 +33,7 @@ public:
 	bool	Enable;		// 是否启用
 	byte	Reversed[3];// 保留，避免对齐问题
 
-	//~Task();
+	~Task();
 
 	void ShowStatus();	// 显示状态
 };
@@ -38,7 +42,7 @@ public:
 class TaskScheduler
 {
 private:
-	FixedArray<Task, 32> _Tasks;
+	FixedArray<Task, 16> _Tasks;
 	uint _gid;	// 总编号
 
 	friend class Task;
@@ -54,7 +58,7 @@ public:
 	~TaskScheduler();
 
 	// 创建任务，返回任务编号。dueTime首次调度时间us，period调度间隔us，-1表示仅处理一次
-	uint Add(Action func, void* param, ulong dueTime = 0, long period = 0);
+	uint Add(Action func, void* param, ulong dueTime = 0, long period = 0, string name = NULL);
 	void Remove(uint taskid);
 
 	void Start();
diff --git a/Thread.cpp b/Thread.cpp
index dcd2efb8..9734465f 100644
--- a/Thread.cpp
+++ b/Thread.cpp
@@ -1,4 +1,5 @@
 #include "Thread.h"
+#include "Task.h"
 
 //#define TH_DEBUG DEBUG
 #define TH_DEBUG 0
@@ -608,7 +609,7 @@ void Thread::OnTick()
 }
 
 void Idle_Handler(void* param) { while(1); }
-void Main_Handler(void* param) { Sys.StartInternal(); while(1); }
+void Main_Handler(void* param) { Scheduler.Start(); while(1); }
 
 bool Thread::Inited = false;
 uint Thread::g_ID = 0;
diff --git a/WatchDog.cpp b/WatchDog.cpp
index 6364122b..6982cf57 100644
--- a/WatchDog.cpp
+++ b/WatchDog.cpp
@@ -173,5 +173,5 @@ void WatchDog::Start(uint ms)
 	uint us = ms * 1000;
 
 	debug_printf("WatchDog::Start ");
-	Sys.AddTask(FeedDogTask, &dog, us, us);
+	Sys.AddTask(FeedDogTask, &dog, us, us, "看门狗");
 }