diff --git a/Drivers/HMI.cpp b/Drivers/HMI.cpp
new file mode 100644
index 00000000..f6905ea0
--- /dev/null
+++ b/Drivers/HMI.cpp
@@ -0,0 +1,72 @@
+#include "HMI.h"
+#include "Device\SerialPort.h"
+#include "Kernel\Sys.h"
+
+#define NET_DEBUG DEBUG
+//#define NET_DEBUG 0
+#if NET_DEBUG
+#define net_printf debug_printf
+#else
+#define net_printf(format, ...)
+#endif
+
+/******************************** HMI ********************************/
+HMI::HMI()
+{
+	Port = nullptr;
+}
+
+HMI::~HMI()
+{
+	delete Port;
+}
+
+// 初始化HMI串口
+void HMI::Init(COM idx, int baudrate)
+{
+	auto srp = new SerialPort(idx, baudrate);
+	srp->Tx.SetCapacity(0x200);
+	srp->Rx.SetCapacity(0x200);
+	srp->MaxSize = 512;
+
+	Init(srp);
+}
+
+// 注册HMI串口的数据到达
+void HMI::Init(ITransport* port)
+{
+	Port = port;
+	if (Port) Port->Register(OnPortReceive, this);
+}
+
+// 数据到达
+uint HMI::OnPortReceive(ITransport* sender, Buffer& bs, void* param, void* param2)
+{
+	auto esp = (HMI*)param;
+	return esp->OnReceive(bs, param2);
+}
+
+// 解析收到的数据
+uint HMI::OnReceive(Buffer& bs, void* param)
+{
+	if (bs.Length() == 0) return 0;
+	debug_printf("HMI::收到：");
+	bs.AsString().Show(true);
+	return 0;
+}
+
+// 向HMI发送数据指令
+void HMI::Send(const String& cmd)
+{
+	Port->Write(cmd);
+	SenDFlag();
+}
+
+// 向HMI发送指令结束符
+void HMI::SenDFlag()
+{
+	byte by[3] = { 0xFF,0xFF,0xFF };
+	Buffer bs(by, 3);
+	Port->Write(bs);
+}
+
diff --git a/Drivers/HMI.h b/Drivers/HMI.h
new file mode 100644
index 00000000..e8181154
--- /dev/null
+++ b/Drivers/HMI.h
@@ -0,0 +1,29 @@
+#ifndef __HMI_H__
+#define __HMI_H__
+
+#include "Device\SerialPort.h"
+
+class HMI
+{
+public:
+	ITransport*	Port;	// 传输口
+
+	HMI();
+	~HMI();
+
+	// 初始化串口屏的串口
+	void Init(COM idx, int baudrate = 115200); 
+	// 初始传输口
+	void Init(ITransport* port);	
+
+	// 引发数据到达事件
+	uint OnReceive(Buffer& bs, void* param);
+	static uint OnPortReceive(ITransport* sender, Buffer& bs, void* param, void* param2);
+
+	// 发送指令到串口屏
+	void Send(const String& cmd);
+	// 发送结束标志
+	void SenDFlag();
+};
+
+#endif
diff --git a/Message/HistoryStore.cpp b/Message/HistoryStore.cpp
index 0196d3fc..c208cf3c 100644
--- a/Message/HistoryStore.cpp
+++ b/Message/HistoryStore.cpp
@@ -2,6 +2,8 @@
 
 #include "Device\Flash.h"
 
+#include "Kernel\Task.h"
+
 #include "HistoryStore.h"
 
 #define DS_DEBUG DEBUG
@@ -61,6 +63,8 @@ bool HistoryStore::Open(bool UseThousand)
 		p = RenderPeriod;
 	}
 	_task = Sys.AddTask(RenderTask, this, p, p, "鍘嗗彶鏁版嵁");
+	auto task = Task::Get(_task);
+	task->MaxDeepth = 4;
 
 	return Opened = true;
 }