diff --git a/SamplingDialog.py b/SamplingDialog.py
index 2c228e0..4e16bf9 100644
--- a/SamplingDialog.py
+++ b/SamplingDialog.py
@@ -198,6 +198,9 @@ class IPConfigDialog(QDialog):
         form_layout.addRow(QLabel("IP 地址:"), self.ip_input)
         form_layout.addRow(QLabel("子网掩码:"), self.mask_input)
         form_layout.addRow(QLabel("网关:"), self.gw_input)
+        self.ip_input.setText("192.168.0.151")
+        self.mask_input.setText("255.255.255.0")
+        self.gw_input.setText("192.168.0.1")
 
         self.save_btn = QPushButton("保存")
         self.cancel_btn = QPushButton("取消")
@@ -298,6 +301,7 @@ class CalibrationDialog(QDialog):
         self.type_cb = QComboBox()
         self.type_cb.addItems(["温度", "电压DC", "电压AC"])
         self.type_cb.currentTextChanged.connect(self.update_voltage_points)
+        self.channel_cb.currentTextChanged.connect(self.update_voltage_points)
 
         top_layout = QHBoxLayout()
         top_layout.addWidget(QLabel("通道:"))
@@ -382,6 +386,18 @@ class CalibrationDialog(QDialog):
     def initialize_calibration(self):
         for label in self.value_labels:
             label.setText("未获取")
+        # 获取通道号和类型索引
+        ch = self.channel_cb.currentIndex() + 1  # 通道1 对应 1
+        group = self.type_cb.currentIndex()  # 0=temp, 1=dc, 2=ac
+        print(f"ch:{ch},group:{group}")
+        a = 1
+        b = 0
+        header = bytes([0xAA, 0x55, 0xAA, 0x11, 0x01, 0x00])  # 可根据实际协议修改
+        payload = struct.pack('<BBff', ch, group, a, b)
+        packet = header + payload
+        # 发送给 MCU
+        self.socket.write(packet)
+        self.socket.waitForReadyRead()
     def get_coe(self):
         try:
             self.socket.write(bytes(
@@ -403,8 +419,6 @@ class CalibrationDialog(QDialog):
             QMessageBox.warning(self, "错误", "请先获取所有电压点的校准值")
             return
 
-
-
         # 非线性最小二乘拟合 y = a*x + b
         def func(p, x):
             a, b = p
@@ -414,8 +428,11 @@ class CalibrationDialog(QDialog):
             return func(p, x) - y
 
         p0 = [1, 0]
-        plsq = leastsq(error, p0, args=(np.array(x), np.array(y)))
+        plsq = leastsq(error, p0, args=(np.array(y), np.array(x)))
         a, b = plsq[0]
+        # import numpy as np
+        #
+        # a, b = np.polyfit(x, y, 1)
 
         print(f"拟合结果: a = {a:.4f}, b = {b:.4f}")
 
@@ -577,7 +594,7 @@ class CalibrationDialog(QDialog):
         print(f"top10_min 去除最大的数据后的平均值2：{mean_min}")
         pp = mean_max - mean_min
         if self.type_cb.currentIndex() == 2:
-            self.value_labels[self.type_index].setText(str(pp))
+            self.value_labels[self.type_index].setText(str(round(pp,3)))
         print(f"pp :{mean_max - mean_min}")
 
     def closeEvent(self, event):
diff --git a/mainwindow.py b/mainwindow.py
index 95a9ea3..d685f81 100644
--- a/mainwindow.py
+++ b/mainwindow.py
@@ -184,6 +184,10 @@ class SocketClientApp(QMainWindow):
         self.get_temp_button.setEnabled(False)
         self.upgrade_button_sampling.setEnabled(False)
         self.save_button_csv.setEnabled(False)
+        self.mac_config_button.setEnabled(False)
+        self.ipv4_config_button.setEnabled(False)
+        self.calibration_config_button.setEnabled(False)
+        self.get_version_button.setEnabled(False)
         self.ip_input.setText("192.168.0.199")
         self.port_input.setText("12345")
 
@@ -329,10 +333,14 @@ class SocketClientApp(QMainWindow):
 
     def connect_to_server(self):
         #self.process_wave_packet('')
-        ip = self.ip_input.text()
-        port = int(self.port_input.text())
-        self.socket.abort()
-        self.socket.connectToHost(ip, port)
+        if self.connect_button.text() == "断开":
+            self.connect_button.setText("连接")
+            self.socket.disconnectFromHost()
+        elif self.connect_button.text() == "连接":
+            ip = self.ip_input.text()
+            port = int(self.port_input.text())
+            self.socket.abort()
+            self.socket.connectToHost(ip, port)
 
     def on_socket_connected(self):
         self.status_bar.showMessage("状态: 连接成功")
@@ -342,18 +350,28 @@ class SocketClientApp(QMainWindow):
         self.get_temp_button.setEnabled(True)
         self.upgrade_button_sampling.setEnabled(True)
         self.save_button_csv.setEnabled(True)
+        self.mac_config_button.setEnabled(True)
+        self.ipv4_config_button.setEnabled(True)
+        self.calibration_config_button.setEnabled(True)
+        self.get_version_button.setEnabled(True)
+        self.connect_button.setText("断开")
 
     def on_socket_disconnected(self):
         print("on_socket_disconnected")
-        self.status_bar.showMessage("状态: 连接断开，正在重连...")
+        self.connect_button.setText("连接")
+        self.status_bar.showMessage("状态: 连接断开")
         self.get_data_button.setEnabled(False)
         self.get_data_button2.setEnabled(False)
         self.upgrade_button.setEnabled(False)
         self.get_temp_button.setEnabled(False)
         self.upgrade_button_sampling.setEnabled(False)
         self.save_button_csv.setEnabled(False)
-        self.current_reconnect_attempts = 0
-        self.reconnect_timer.start(self.reconnect_interval)
+        self.mac_config_button.setEnabled(False)
+        self.ipv4_config_button.setEnabled(False)
+        self.calibration_config_button.setEnabled(False)
+        self.get_version_button.setEnabled(False)
+        # self.current_reconnect_attempts = 0
+        # self.reconnect_timer.start(self.reconnect_interval)
 
     def on_socket_error(self, error):
         self.status_bar.showMessage(f"状态: 错误 - {self.socket.errorString()}")