diff --git a/.vscode/settings.json b/.vscode/settings.json
index 2f51b86..36e17e8 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -38,6 +38,9 @@
         "freertos.h": "c",
         "tcp.h": "c",
         "cmsis_os.h": "c",
-        "freertosconfig.h": "c"
+        "freertosconfig.h": "c",
+        "communication_protocol.h": "c",
+        "user_gpio.h": "c",
+        "user_lib.h": "c"
     }
 }
\ No newline at end of file
diff --git a/Core/Inc/gpio.h b/Core/Inc/gpio.h
index 6d9fc61..adda4ed 100644
--- a/Core/Inc/gpio.h
+++ b/Core/Inc/gpio.h
@@ -22,17 +22,18 @@
 #define __GPIO_H__
 
 #ifdef __cplusplus
-extern "C" {
+extern "C"
+{
 #endif
 
 /* Includes ------------------------------------------------------------------*/
 #include "main.h"
 
-/* USER CODE BEGIN Includes */
+  /* USER CODE BEGIN Includes */
 
-/* USER CODE END Includes */
+  /* USER CODE END Includes */
 
-/* USER CODE BEGIN Private defines */
+  /* USER CODE BEGIN Private defines */
   typedef enum
   {
     DI_1,
@@ -46,17 +47,16 @@ extern "C" {
     DO_EN,
     DI_DO_MAX,
   } gpio_e;
-/* USER CODE END Private defines */
+  /* USER CODE END Private defines */
 
-void MX_GPIO_Init(void);
+  void MX_GPIO_Init(void);
 
-/* USER CODE BEGIN Prototypes */
-  extern void gpio_do_test(gpio_e gpio_num, GPIO_PinState state);
-  extern GPIO_PinState gpio_di_test(gpio_e gpio_num);
-/* USER CODE END Prototypes */
+  /* USER CODE BEGIN Prototypes */
+  extern void gpio_do_test(uint8_t gpio_num, GPIO_PinState state);
+  extern GPIO_PinState gpio_di_test(uint8_t gpio_num);
+  /* USER CODE END Prototypes */
 
 #ifdef __cplusplus
 }
 #endif
 #endif /*__ GPIO_H__ */
-
diff --git a/Core/Inc/main.h b/Core/Inc/main.h
index e3a84c6..eb4bd98 100644
--- a/Core/Inc/main.h
+++ b/Core/Inc/main.h
@@ -37,29 +37,29 @@ extern "C"
 #include "tcpserverc.h"
 #include "leds.h"
 #include <string.h>
-    /* USER CODE END Includes */
+/* USER CODE END Includes */
 
-    /* Exported types ------------------------------------------------------------*/
-    /* USER CODE BEGIN ET */
-    extern uint8_t tcp_echo_flags_hart1;
-    extern uint8_t tcp_echo_flags_hart2;
-    extern uint8_t tcp_echo_flags_ble1;
-    extern uint8_t tcp_echo_flags_ble2;
-    extern uint8_t tcp_echo_flags_control;
+/* Exported types ------------------------------------------------------------*/
+/* USER CODE BEGIN ET */
+extern uint8_t tcp_echo_flags_hart1;
+extern uint8_t tcp_echo_flags_hart2;
+extern uint8_t tcp_echo_flags_ble1;
+extern uint8_t tcp_echo_flags_ble2;
+extern uint8_t tcp_echo_flags_control;
 #define ARRAY_LEN(arr) (sizeof(arr)) / (sizeof(arr[0]))
-    typedef struct
-    {
-        uint16_t rx_num;
-        uint8_t rx_data[512];
-        uint8_t rx_data_temp[512];
-        uint8_t tx_data[512];
-    } uart_t;
+typedef struct
+{
+    uint16_t rx_num;
+    uint8_t rx_data[512];
+    uint8_t rx_data_temp[512];
+    uint8_t tx_data[512];
+} uart_t;
 
-    extern uart_t lcd_uart4;
-    extern uart_t ble2_uart3;
-    extern uart_t ble1_uart6;
-    extern uart_t hart1_uart5;
-    extern uart_t hart2_uart2;
+extern uart_t lcd_uart4;
+extern uart_t ble2_uart3;
+extern uart_t ble1_uart6;
+extern uart_t hart1_uart5;
+extern uart_t hart2_uart2;
 #define DEST_IP_ADDR0 192
 #define DEST_IP_ADDR1 168
 #define DEST_IP_ADDR2 1
diff --git a/Core/Src/freertos.c b/Core/Src/freertos.c
index 20059c6..e2e598b 100644
--- a/Core/Src/freertos.c
+++ b/Core/Src/freertos.c
@@ -28,6 +28,7 @@
 #include "dac161s997.h"
 #include "ad7124.h"
 #include "usart.h"
+#include "communication_protocol.h"
 /* USER CODE END Includes */
 
 /* Private typedef -----------------------------------------------------------*/
@@ -56,7 +57,7 @@ osThreadId adc_taskHandle;
 
 /* Private function prototypes -----------------------------------------------*/
 /* USER CODE BEGIN FunctionPrototypes */
-
+extern float current_buff[2];
 /* USER CODE END FunctionPrototypes */
 
 void start_tcp_task(void const *argument);
@@ -199,8 +200,9 @@ void start_dac_task(void const *argument)
   /* Infinite loop */
   for (;;)
   {
-    dac161s997_output(DAC161S997_1, 12.0f);
-    dac161s997_output(DAC161S997_2, 12.0f);
+    dac161s997_output(DAC161S997_1, current_buff[0]);
+    dac161s997_output(DAC161S997_2, current_buff[1]);
+
     vTaskDelay(100);
   }
   /* USER CODE END start_dac_task */
diff --git a/Core/Src/gpio.c b/Core/Src/gpio.c
index b7907a3..57c3a2e 100644
--- a/Core/Src/gpio.c
+++ b/Core/Src/gpio.c
@@ -33,12 +33,12 @@
 /* USER CODE END 1 */
 
 /** Configure pins as
-        * Analog
-        * Input
-        * Output
-        * EVENT_OUT
-        * EXTI
-*/
+ * Analog
+ * Input
+ * Output
+ * EVENT_OUT
+ * EXTI
+ */
 void MX_GPIO_Init(void)
 {
 
@@ -56,15 +56,13 @@ void MX_GPIO_Init(void)
   HAL_GPIO_WritePin(ETH_RESET_GPIO_Port, ETH_RESET_Pin, GPIO_PIN_SET);
 
   /*Configure GPIO pin Output Level */
-  HAL_GPIO_WritePin(GPIOB, LED3_R_Pin|LED3_G_Pin|DAC1_CS_Pin|DAC2_CS_Pin, GPIO_PIN_SET);
+  HAL_GPIO_WritePin(GPIOB, LED3_R_Pin | LED3_G_Pin | DAC1_CS_Pin | DAC2_CS_Pin, GPIO_PIN_SET);
 
   /*Configure GPIO pin Output Level */
-  HAL_GPIO_WritePin(GPIOE, LED3_Y_Pin|LED2_R_Pin|LED2_G_Pin|LED2_Y_Pin
-                          |ADC_CS_Pin|AD7124_SYNC_Pin, GPIO_PIN_SET);
+  HAL_GPIO_WritePin(GPIOE, LED3_Y_Pin | LED2_R_Pin | LED2_G_Pin | LED2_Y_Pin | ADC_CS_Pin | AD7124_SYNC_Pin, GPIO_PIN_SET);
 
   /*Configure GPIO pin Output Level */
-  HAL_GPIO_WritePin(GPIOD, DO_CH4_Pin|DO_CH3_Pin|DO_CH1_Pin|DO_CH2_Pin
-                          |DO_EN_Pin|HART1_RTS_Pin|HART2_RTS_Pin, GPIO_PIN_SET);
+  HAL_GPIO_WritePin(GPIOD, DO_CH4_Pin | DO_CH3_Pin | DO_CH1_Pin | DO_CH2_Pin | DO_EN_Pin | HART1_RTS_Pin | HART2_RTS_Pin, GPIO_PIN_SET);
 
   /*Configure GPIO pin Output Level */
   HAL_GPIO_WritePin(HART1_RST_GPIO_Port, HART1_RST_Pin, GPIO_PIN_SET);
@@ -80,35 +78,35 @@ void MX_GPIO_Init(void)
   HAL_GPIO_Init(ETH_RESET_GPIO_Port, &GPIO_InitStruct);
 
   /*Configure GPIO pins : PBPin PBPin */
-  GPIO_InitStruct.Pin = LED3_R_Pin|LED3_G_Pin;
+  GPIO_InitStruct.Pin = LED3_R_Pin | LED3_G_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_PULLUP;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_MEDIUM;
   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 
   /*Configure GPIO pins : PEPin PEPin PEPin PEPin */
-  GPIO_InitStruct.Pin = LED3_Y_Pin|LED2_R_Pin|LED2_G_Pin|LED2_Y_Pin;
+  GPIO_InitStruct.Pin = LED3_Y_Pin | LED2_R_Pin | LED2_G_Pin | LED2_Y_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_PULLUP;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_MEDIUM;
   HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
 
   /*Configure GPIO pins : PDPin PDPin PDPin PDPin */
-  GPIO_InitStruct.Pin = DO_CH4_Pin|DO_CH3_Pin|DO_CH1_Pin|DO_CH2_Pin;
+  GPIO_InitStruct.Pin = DO_CH4_Pin | DO_CH3_Pin | DO_CH1_Pin | DO_CH2_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
   HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
 
   /*Configure GPIO pins : PDPin PDPin PDPin PDPin */
-  GPIO_InitStruct.Pin = DO_EN_Pin|HART1_RTS_Pin|HART2_RTS_Pin|HART2_RST_Pin;
+  GPIO_InitStruct.Pin = DO_EN_Pin | HART1_RTS_Pin | HART2_RTS_Pin | HART2_RST_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_PULLUP;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
   HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
 
   /*Configure GPIO pins : PCPin PCPin */
-  GPIO_InitStruct.Pin = DI_CH1_Pin|DI_CH2_Pin;
+  GPIO_InitStruct.Pin = DI_CH1_Pin | DI_CH2_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
   GPIO_InitStruct.Pull = GPIO_PULLUP;
   HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
@@ -121,19 +119,19 @@ void MX_GPIO_Init(void)
   HAL_GPIO_Init(HART1_RST_GPIO_Port, &GPIO_InitStruct);
 
   /*Configure GPIO pins : PAPin PAPin */
-  GPIO_InitStruct.Pin = DI_CH3_Pin|DI_CH4_Pin;
+  GPIO_InitStruct.Pin = DI_CH3_Pin | DI_CH4_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
   GPIO_InitStruct.Pull = GPIO_PULLUP;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
   /*Configure GPIO pins : PDPin PDPin */
-  GPIO_InitStruct.Pin = HART1_OCD_Pin|HART2_OCD_Pin;
+  GPIO_InitStruct.Pin = HART1_OCD_Pin | HART2_OCD_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
   GPIO_InitStruct.Pull = GPIO_PULLUP;
   HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
 
   /*Configure GPIO pins : PBPin PBPin */
-  GPIO_InitStruct.Pin = DAC1_CS_Pin|DAC2_CS_Pin;
+  GPIO_InitStruct.Pin = DAC1_CS_Pin | DAC2_CS_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_PULLUP;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
@@ -159,11 +157,10 @@ void MX_GPIO_Init(void)
 
   HAL_NVIC_SetPriority(EXTI3_IRQn, 5, 0);
   HAL_NVIC_EnableIRQ(EXTI3_IRQn);
-
 }
 
 /* USER CODE BEGIN 2 */
-void gpio_do_test(gpio_e gpio_num, GPIO_PinState state)
+void gpio_do_test(uint8_t gpio_num, GPIO_PinState state)
 {
   HAL_GPIO_WritePin(DO_EN_GPIO_Port, DO_EN_Pin, GPIO_PIN_RESET);
   switch (gpio_num)
@@ -185,7 +182,7 @@ void gpio_do_test(gpio_e gpio_num, GPIO_PinState state)
   }
 }
 
-GPIO_PinState gpio_di_test(gpio_e gpio_num)
+GPIO_PinState gpio_di_test(uint8_t gpio_num)
 {
   GPIO_PinState state;
   switch (gpio_num)
diff --git a/MDK-ARM/TEST2.uvoptx b/MDK-ARM/TEST2.uvoptx
index e07726f..2eb454a 100644
--- a/MDK-ARM/TEST2.uvoptx
+++ b/MDK-ARM/TEST2.uvoptx
@@ -148,7 +148,24 @@
           <Name>-UB -O2254 -SF1800 -C0 -A0 -I0 -HNlocalhost -HP7184 -P1 -N00("ARM CoreSight SW-DP (ARM Core") -D00(2BA01477) -L00(0) -TO131090 -TC10000000 -TT10000000 -TP21 -TDS8000 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -FO7 -FD20000000 -FC800 -FN1 -FF0STM32F4xx_1024.FLM -FS08000000 -FL0100000 -FP0($$Device:STM32F407VGTx$CMSIS\Flash\STM32F4xx_1024.FLM)</Name>
         </SetRegEntry>
       </TargetDriverDllRegistry>
-      <Breakpoint/>
+      <Breakpoint>
+        <Bp>
+          <Number>0</Number>
+          <Type>0</Type>
+          <LineNumber>4</LineNumber>
+          <EnabledFlag>1</EnabledFlag>
+          <Address>0</Address>
+          <ByteObject>0</ByteObject>
+          <HtxType>0</HtxType>
+          <ManyObjects>0</ManyObjects>
+          <SizeOfObject>0</SizeOfObject>
+          <BreakByAccess>0</BreakByAccess>
+          <BreakIfRCount>0</BreakIfRCount>
+          <Filename>../User/application/inc/communication_protocol.h</Filename>
+          <ExecCommand></ExecCommand>
+          <Expression></Expression>
+        </Bp>
+      </Breakpoint>
       <WatchWindow1>
         <Ww>
           <count>0</count>
@@ -213,7 +230,7 @@
         <Ww>
           <count>12</count>
           <WinNumber>1</WinNumber>
-          <ItemText>ad7124_analog,0x10</ItemText>
+          <ItemText>ad7124_analog,0x0A</ItemText>
         </Ww>
         <Ww>
           <count>13</count>
@@ -501,7 +518,7 @@
 
   <Group>
     <GroupName>Drivers/STM32F4xx_HAL_Driver</GroupName>
-    <tvExp>1</tvExp>
+    <tvExp>0</tvExp>
     <tvExpOptDlg>0</tvExpOptDlg>
     <cbSel>0</cbSel>
     <RteFlg>0</RteFlg>
@@ -1773,6 +1790,30 @@
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
+    <File>
+      <GroupNumber>10</GroupNumber>
+      <FileNumber>118</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>1</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\User\application\src\communication_protocol.c</PathWithFileName>
+      <FilenameWithoutPath>communication_protocol.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+    <File>
+      <GroupNumber>10</GroupNumber>
+      <FileNumber>119</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\User\application\src\user_lib.c</PathWithFileName>
+      <FilenameWithoutPath>user_lib.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
   </Group>
 
   <Group>
@@ -1783,7 +1824,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>11</GroupNumber>
-      <FileNumber>118</FileNumber>
+      <FileNumber>120</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1795,7 +1836,7 @@
     </File>
     <File>
       <GroupNumber>11</GroupNumber>
-      <FileNumber>119</FileNumber>
+      <FileNumber>121</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1807,7 +1848,7 @@
     </File>
     <File>
       <GroupNumber>11</GroupNumber>
-      <FileNumber>120</FileNumber>
+      <FileNumber>122</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1821,13 +1862,13 @@
 
   <Group>
     <GroupName>User/system</GroupName>
-    <tvExp>0</tvExp>
+    <tvExp>1</tvExp>
     <tvExpOptDlg>0</tvExpOptDlg>
     <cbSel>0</cbSel>
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>12</GroupNumber>
-      <FileNumber>121</FileNumber>
+      <FileNumber>123</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1837,6 +1878,18 @@
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
     </File>
+    <File>
+      <GroupNumber>12</GroupNumber>
+      <FileNumber>124</FileNumber>
+      <FileType>1</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\User\system\user_gpio.c</PathWithFileName>
+      <FilenameWithoutPath>user_gpio.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
   </Group>
 
   <Group>
@@ -1847,7 +1900,7 @@
     <RteFlg>0</RteFlg>
     <File>
       <GroupNumber>13</GroupNumber>
-      <FileNumber>122</FileNumber>
+      <FileNumber>125</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1859,7 +1912,7 @@
     </File>
     <File>
       <GroupNumber>13</GroupNumber>
-      <FileNumber>123</FileNumber>
+      <FileNumber>126</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1871,7 +1924,7 @@
     </File>
     <File>
       <GroupNumber>13</GroupNumber>
-      <FileNumber>124</FileNumber>
+      <FileNumber>127</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1883,7 +1936,7 @@
     </File>
     <File>
       <GroupNumber>13</GroupNumber>
-      <FileNumber>125</FileNumber>
+      <FileNumber>128</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1895,7 +1948,7 @@
     </File>
     <File>
       <GroupNumber>13</GroupNumber>
-      <FileNumber>126</FileNumber>
+      <FileNumber>129</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1907,7 +1960,7 @@
     </File>
     <File>
       <GroupNumber>13</GroupNumber>
-      <FileNumber>127</FileNumber>
+      <FileNumber>130</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1919,7 +1972,7 @@
     </File>
     <File>
       <GroupNumber>13</GroupNumber>
-      <FileNumber>128</FileNumber>
+      <FileNumber>131</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1931,7 +1984,7 @@
     </File>
     <File>
       <GroupNumber>13</GroupNumber>
-      <FileNumber>129</FileNumber>
+      <FileNumber>132</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1943,7 +1996,7 @@
     </File>
     <File>
       <GroupNumber>13</GroupNumber>
-      <FileNumber>130</FileNumber>
+      <FileNumber>133</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
@@ -1955,7 +2008,7 @@
     </File>
     <File>
       <GroupNumber>13</GroupNumber>
-      <FileNumber>131</FileNumber>
+      <FileNumber>134</FileNumber>
       <FileType>1</FileType>
       <tvExp>0</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
diff --git a/MDK-ARM/TEST2.uvprojx b/MDK-ARM/TEST2.uvprojx
index 7eeb951..bfca159 100644
--- a/MDK-ARM/TEST2.uvprojx
+++ b/MDK-ARM/TEST2.uvprojx
@@ -1523,6 +1523,16 @@
               <FileType>1</FileType>
               <FilePath>..\User\application\src\tcpserverc.c</FilePath>
             </File>
+            <File>
+              <FileName>communication_protocol.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\User\application\src\communication_protocol.c</FilePath>
+            </File>
+            <File>
+              <FileName>user_lib.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\User\application\src\user_lib.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -1553,6 +1563,11 @@
               <FileType>1</FileType>
               <FilePath>..\User\system\user_spi.c</FilePath>
             </File>
+            <File>
+              <FileName>user_gpio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\User\system\user_gpio.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
diff --git a/MDK-ARM/TEST2/TEST2.build_log.htm b/MDK-ARM/TEST2/TEST2.build_log.htm
deleted file mode 100644
index 31a5b4e..0000000
--- a/MDK-ARM/TEST2/TEST2.build_log.htm
+++ /dev/null
@@ -1,190 +0,0 @@
-<html>
-<body>
-<pre>
-<h1>�Vision Build Log</h1>
-<h2>Tool Versions:</h2>
-IDE-Version: ��Vision V5.36.0.0
-Copyright (C) 2021 ARM Ltd and ARM Germany GmbH. All rights reserved.
-License Information: aaa Administrator, aaa, LIC=6XJT4-F8J98-8YUVV-P833R-DBAKX-Y8EU6
- 
-Tool Versions:
-Toolchain:       MDK-ARM Professional  Version: 5.36.0.0
-Toolchain Path:  C:\Keil_v5\ARM\ARMCC\Bin
-C Compiler:      Armcc.exe V5.06 update 7 (build 960)
-Assembler:       Armasm.exe V5.06 update 7 (build 960)
-Linker/Locator:  ArmLink.exe V5.06 update 7 (build 960)
-Library Manager: ArmAr.exe V5.06 update 7 (build 960)
-Hex Converter:   FromElf.exe V5.06 update 7 (build 960)
-CPU DLL:         SARMCM3.DLL V5.36.0.0
-Dialog DLL:      DCM.DLL V1.17.3.0
-Target DLL:      STLink\ST-LINKIII-KEIL_SWO.dll V3.0.9.0
-Dialog DLL:      TCM.DLL V1.53.0.0
- 
-<h2>Project:</h2>
-D:\WORK\TEST1\TEST2\MDK-ARM\TEST2.uvprojx
-Project File Date:  02/10/2025
-
-<h2>Output:</h2>
-*** Using Compiler 'V5.06 update 7 (build 960)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
-Build target 'TEST2'
-assembling startup_stm32f407xx.s...
-compiling lan8742.c...
-compiling main.c...
-compiling stm32f4xx_it.c...
-compiling spi.c...
-compiling stm32f4xx_hal_msp.c...
-compiling stm32f4xx_hal_timebase_tim.c...
-compiling dma.c...
-compiling freertos.c...
-compiling gpio.c...
-compiling usart.c...
-compiling tim.c...
-compiling stm32f4xx_hal_rcc.c...
-compiling lwip.c...
-compiling ethernetif.c...
-compiling stm32f4xx_hal_rcc_ex.c...
-compiling stm32f4xx_hal_flash.c...
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-compiling dac161s997.c...
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-linking...
-Program Size: Code=85896 RO-data=1388 RW-data=1508 ZI-data=61092  
-"TEST2\TEST2.axf" - 0 Error(s), 0 Warning(s).
-
-<h2>Software Packages used:</h2>
-
-Package Vendor: ARM
-                http://www.keil.com/pack/ARM.CMSIS.5.8.0.pack
-                ARM.CMSIS.5.8.0
-                CMSIS (Common Microcontroller Software Interface Standard)
-   * Component: CORE Version: 5.5.0
-
-Package Vendor: Keil
-                http://www.keil.com/pack/Keil.STM32F4xx_DFP.2.12.0.pack
-                Keil.STM32F4xx_DFP.2.12.0
-                STMicroelectronics STM32F4 Series Device Support, Drivers and Examples
-
-<h2>Collection of Component include folders:</h2>
-  .\RTE\_TEST2
-  C:\Users\Administrator\AppData\Local\Arm\Packs\ARM\CMSIS\5.8.0\CMSIS\Core\Include
-  C:\Users\Administrator\AppData\Local\Arm\Packs\Keil\STM32F4xx_DFP\2.12.0\Drivers\CMSIS\Device\ST\STM32F4xx\Include
-
-<h2>Collection of Component Files used:</h2>
-
-   * Component: ARM::CMSIS:CORE:5.5.0
-      Include file:  CMSIS\Core\Include\tz_context.h
-Build Time Elapsed:  00:00:13
-</pre>
-</body>
-</html>
diff --git a/User/application/inc/communication_protocol.h b/User/application/inc/communication_protocol.h
new file mode 100644
index 0000000..0a5bc6c
--- /dev/null
+++ b/User/application/inc/communication_protocol.h
@@ -0,0 +1,56 @@
+#ifndef _COMMUNICATION_PROTOCOL_H_
+#define _COMMUNICATION_PROTOCOL_H_
+
+#include "user_lib.h"
+
+#define COM_ERROR_CODE_SIZE 7 // 通信错误返回帧长度
+#define COM_AI_DATA_SIZE 11   // 模拟量数据返回帧长度
+#define FRAME_HEAD 0xAA       // 帧头
+#define FRAME_TAIL 0x3C       // 帧尾
+
+typedef enum
+{
+    COM_OK = 0,
+    FRAMING_ERROR,
+    CHECK_ERROR,
+    COMMAND_ERROR,
+    DEVICE_ERROR,
+} communication_error_e;
+
+typedef struct
+{
+    uint8_t start_addr;
+    uint8_t num;
+    uint8_t data[16];
+} communication_do_t;
+
+typedef struct
+{
+    uint8_t start_addr;
+    uint8_t num;
+} communication_di_t;
+
+typedef struct
+{
+    uint8_t channel;
+    float32_u data;
+} communication_ao_t;
+
+typedef struct
+{
+    uint8_t channel;
+} communication_ai_t;
+
+typedef union
+{
+    uint8_t data[50];
+    communication_do_t do_data;
+    communication_di_t di_data;
+    communication_ao_t ao_data;
+    communication_ai_t ai_data;
+} communication_data_u;
+
+void communication_exception(uint8_t *tx_data, const uint8_t *const rx_data, communication_error_e error_code);
+void communication_get_ai(communication_ai_t *ai_data, uint8_t *tx_data, const uint8_t *const rx_data);
+void communication_set_ao(communication_ao_t *ao_data);
+#endif
diff --git a/User/application/inc/user_lib.h b/User/application/inc/user_lib.h
new file mode 100644
index 0000000..7461a21
--- /dev/null
+++ b/User/application/inc/user_lib.h
@@ -0,0 +1,41 @@
+#ifndef _USER_LIB_H_
+#define _USER_LIB_H_
+
+#include <stdint.h>
+
+typedef union
+{
+    float f;
+    int32_t c;
+} float32_u; // 浮点数共用体
+
+// uint32小端转大端
+#define S2B_UINT32(a) \
+    (((uint32_t)(a) & 0xFF000000) >> 24) + (((uint32_t)(a) & 0x00FF0000) >> 8) + (((uint32_t)(a) & 0x0000FF00) << 8) + (((uint32_t)(a) & 0x000000FF) << 24)
+
+// uint32大端转小端
+#define B2S_UINT32(a) S2B_UINT32(a)
+
+// uint16小端转大端
+#define S2B_UINT16(a) ((((uint16_t)(a) & 0xFF00) >> 8) + (((uint16_t)(a) & 0x00FF) << 8))
+
+// uint16大端转小端
+#define B2S_UINT16(a) S2B_UINT16(a)
+
+#define BUILD_UINT16(loByte, hiByte) \
+    ((uint16_t)(((loByte) & 0x00FF) + (((hiByte) & 0x00FF) << 8)))
+
+// float32小端转大端
+static inline float S2B_FLOAT32(float fv)
+{
+    float32_u _f;
+    _f.f = fv;
+    _f.c = S2B_UINT32(_f.c);
+    return _f.f;
+}
+
+// float32大端转小端
+#define B2S_FLOAT32(a) S2B_FLOAT32(a)
+
+uint8_t xor_compute(const uint8_t *const data, uint16_t length);
+#endif
diff --git a/User/application/src/communication_protocol.c b/User/application/src/communication_protocol.c
new file mode 100644
index 0000000..838067f
--- /dev/null
+++ b/User/application/src/communication_protocol.c
@@ -0,0 +1,49 @@
+#include "communication_protocol.h"
+#include "user_lib.h"
+#include "ad7124.h"
+
+extern float current_buff[2];
+extern ad7124_analog_t ad7124_analog[AD7124_CHANNEL_EN_MAX];
+/**
+ * @brief 处理通信异常
+ *
+ * 当通信发生异常时，此函数将构造一个包含错误信息的TCP数据包，并填充相应的数据。
+ *
+ * @param tx_data 发送的数据指针
+ * @param rx_data 接收的数据指针
+ * @param error_code 通信错误代码
+ */
+void communication_exception(uint8_t *tx_data, const uint8_t *const rx_data, communication_error_e error_code)
+{
+    uint8_t tx_data_len = COM_ERROR_CODE_SIZE;
+    tx_data[0] = FRAME_HEAD;                                // 帧头
+    tx_data[1] = error_code;                                // 状态
+    tx_data[2] = rx_data[2];                                // 设备号
+    tx_data[3] = rx_data[3];                                // 命令号
+    tx_data[4] = 0x00;                                      // 数据长度
+    tx_data[5] = xor_compute(tx_data + 1, tx_data_len - 3); // 异或校验
+    tx_data[6] = FRAME_TAIL;                                // 帧尾
+}
+
+void communication_get_ai(communication_ai_t *ai_data, uint8_t *tx_data, const uint8_t *const rx_data)
+{
+    float32_u analog_data;
+    uint8_t tx_data_len = COM_AI_DATA_SIZE;
+    analog_data.f = S2B_FLOAT32(ad7124_analog[ai_data->channel].current);
+    tx_data[0] = FRAME_HEAD;                                // 帧头
+    tx_data[1] = COM_OK;                                    // 状态
+    tx_data[2] = rx_data[2];                                // 设备号
+    tx_data[3] = rx_data[3];                                // 命令号
+    tx_data[4] = 4;                                         // 数据长度
+    tx_data[5] = analog_data.c;                             // 数据
+    tx_data[6] = analog_data.c >> 8;                        // 数据
+    tx_data[7] = analog_data.c >> 16;                       // 数据
+    tx_data[8] = analog_data.c >> 24;                       // 数据
+    tx_data[9] = xor_compute(tx_data + 1, tx_data_len - 3); // 异或校验
+    tx_data[10] = FRAME_TAIL;                               // 帧尾
+}
+
+void communication_set_ao(communication_ao_t *ao_data)
+{
+    current_buff[ao_data->channel] = B2S_FLOAT32(ao_data->data.f);
+}
diff --git a/User/application/src/tcpserverc.c b/User/application/src/tcpserverc.c
index 5c9af76..b79fb50 100644
--- a/User/application/src/tcpserverc.c
+++ b/User/application/src/tcpserverc.c
@@ -11,11 +11,21 @@
 #include "usart.h"
 #include "main.h"
 #include "ht1200m.h"
+#include "user_lib.h"
+#include "communication_protocol.h"
+#include "user_gpio.h"
+
 struct tcp_pcb *server_pcb_hart1 = NULL;
 struct tcp_pcb *server_pcb_hart2 = NULL;
 struct tcp_pcb *server_pcb_ble1 = NULL;
 struct tcp_pcb *server_pcb_ble2 = NULL;
 struct tcp_pcb *server_pcb_control = NULL;
+
+communication_di_t *user_communication_di = NULL;
+communication_do_t *user_communication_do = NULL;
+communication_ai_t *user_communication_ai = NULL;
+communication_ao_t *user_communication_ao = NULL;
+
 extern uint8_t tcp_echo_flags_hart1;
 extern uint8_t tcp_echo_flags_hart2;
 extern uint8_t tcp_echo_flags_ble1;
@@ -117,25 +127,81 @@ static err_t tcpecho_recv_ble2(void *arg, struct tcp_pcb *tpcb, struct pbuf *p,
 }
 
 static err_t tcpecho_recv_control(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err)
-{                                   
+{
     uint8_t tcp_rx_data[128] = {0}; // 接受数据缓存区
+    uint8_t tcp_tx_data[128] = {0}; // 发送数据缓存区
+    uint8_t rx_data_len = 0;
+    uint8_t tx_data_len = 0;
+    communication_data_u communication_data;
     if (p != NULL)
     {
         /* 更新窗口*/
-        tcp_echo_flags_control = 1;
+
         tcp_recved(tpcb, p->tot_len); // 读取数据的控制块   得到所有数据的长度
         server_pcb_control = tpcb;    // 直接赋值
         memcpy(tcp_rx_data, (int *)p->payload, p->tot_len);
+        rx_data_len = p->tot_len;
         /*1. 对接收的数据做异或校验、帧头帧尾判断，校验失败返回信息，校验通过继续下一步、校验数据从帧头后面到校验位结束*/
-        /*2. 判断所要执行的操作 读或写指令*/
-        /*3. 对要发送的数据进行校验，组包，返回数据*/
+        if (tcp_rx_data[0] != 0xAA || tcp_rx_data[rx_data_len - 1] != 0x3C) // 帧头帧尾判断
+        {
+            tx_data_len = COM_ERROR_CODE_SIZE;
+            communication_exception(tcp_tx_data, tcp_rx_data, FRAMING_ERROR);
+            tcp_write(tpcb, tcp_tx_data, tx_data_len, 1);
+        }
+        else
+        {
+            if (tcp_rx_data[rx_data_len - 2] != xor_compute(tcp_rx_data + 1, rx_data_len - 3)) // 异或校验
+            {
+                tx_data_len = COM_ERROR_CODE_SIZE;
+                communication_exception(tcp_tx_data, tcp_rx_data, CHECK_ERROR);
+                tcp_write(tpcb, tcp_tx_data, tx_data_len, 1);
+            }
+            memcpy(communication_data.data, tcp_rx_data + 5, tcp_rx_data[4]);
+            if (tcp_rx_data[3] == 0x00) // 读模拟量指令
+            {
+                /*读操作，从寄存器读取数据，组包返回*/
+                tx_data_len = COM_AI_DATA_SIZE;
+                user_communication_ai = &communication_data.ai_data;
+                communication_get_ai(user_communication_ai, tcp_tx_data, tcp_rx_data);
+                tcp_write(tpcb, tcp_tx_data, tx_data_len, 1);
+            }
+            else if (tcp_rx_data[3] == 0x01) // 写模拟量指令
+            {
+                /*写操作，将数据写入寄存器，组包返回*/
+                tcp_echo_flags_control = 1;
+                user_communication_ao = &communication_data.ao_data;
+                communication_set_ao(user_communication_ao);
+                tcp_write(tpcb, tcp_rx_data, rx_data_len, 1);
+            }
+            else if (tcp_rx_data[3] == 0x02) // 读数字量指令
+            {
+            }
+            else if (tcp_rx_data[3] == 0x03) // 写数字量指令
+            {
+                /*写操作，将数据写入寄存器，组包返回*/
+                user_communication_do = &communication_data.do_data;
+                user_write_gpio(user_communication_do);
+                tcp_write(tpcb, tcp_rx_data, rx_data_len, 1);
+            }
+            else
+            {
+                // 返回命令号错误
+                tx_data_len = COM_ERROR_CODE_SIZE;
+                communication_exception(tcp_tx_data, tcp_rx_data, COMMAND_ERROR);
+                tcp_write(tpcb, tcp_tx_data, tx_data_len, 1);
+            }
 
-        pbuf_free(p);
+            /*2. 判断所要执行的操作 读或写指令*/
+            /*3. 对要发送的数据进行校验，组包，返回数据*/
+
+            pbuf_free(p);
+        }
     }
     else if (err == ERR_OK) // 检测到对方主动关闭连接时，也会调用recv函数，此时p为空
     {
         return tcp_close(tpcb);
     }
+
     return ERR_OK;
 }
 static err_t tcpecho_accept_hart1(void *arg, struct tcp_pcb *newpcb, err_t err) // 由于这个函数是*tcp_accept_fn类型的
diff --git a/User/application/src/user_lib.c b/User/application/src/user_lib.c
new file mode 100644
index 0000000..eab9582
--- /dev/null
+++ b/User/application/src/user_lib.c
@@ -0,0 +1,22 @@
+#include "user_lib.h"
+
+/**
+ * 计算并返回指定数据区域异或的值
+ *
+ * @param data:  待计算的数据区首地址
+ * @param length:  待计算的数据区长度
+ *
+ * @return 异或计算的结果
+ */
+uint8_t xor_compute(const uint8_t *const data, uint16_t length)
+{
+    uint16_t i;
+    const uint8_t *ptr = data;
+    uint8_t xor = 0;
+    for (i = 0; i < length; i++)
+    {
+        xor ^= *ptr;
+        ptr++;
+    }
+    return xor;
+}
diff --git a/User/driver/ad7124.c b/User/driver/ad7124.c
index 5f3fd88..452123d 100644
--- a/User/driver/ad7124.c
+++ b/User/driver/ad7124.c
@@ -39,7 +39,7 @@ static ad7124_st_reg_t ad7124_regs[AD7124_REG_NO] = {
     {AD7124_CONFIG_5, 0x0860, AD7124_SIZE_2, AD7124_RW},    /* AD7124_Config_5 */
     {AD7124_CONFIG_6, 0x0860, AD7124_SIZE_2, AD7124_RW},    /* AD7124_Config_6 */
     {AD7124_CONFIG_7, 0x0860, AD7124_SIZE_2, AD7124_RW},    /* AD7124_Config_7 */
-    {AD7124_FILTER_0, 0x960000, AD7124_SIZE_3, AD7124_RW},  /* AD7124_Filter_0 */
+    {AD7124_FILTER_0, 0x060080, AD7124_SIZE_3, AD7124_RW},  /* AD7124_Filter_0 */
     {AD7124_FILTER_1, 0x060180, AD7124_SIZE_3, AD7124_RW},  /* AD7124_Filter_1 */
     {AD7124_FILTER_2, 0x060180, AD7124_SIZE_3, AD7124_RW},  /* AD7124_Filter_2 */
     {AD7124_FILTER_3, 0x060180, AD7124_SIZE_3, AD7124_RW},  /* AD7124_Filter_3 */
diff --git a/User/system/user_gpio.c b/User/system/user_gpio.c
new file mode 100644
index 0000000..2e09505
--- /dev/null
+++ b/User/system/user_gpio.c
@@ -0,0 +1,29 @@
+#include "user_gpio.h"
+
+void user_write_gpio(communication_do_t *do_data)
+{
+    uint8_t i = 0;
+    uint8_t start_addr = do_data->start_addr; // 写输出的起始地址
+    uint8_t length = do_data->num;            // 写输出的数量
+    for (i = 0; i < length; i++)
+    {
+        if (do_data->data[i] == 0x01)
+        {
+            gpio_do_test(DO_1 + start_addr + i, GPIO_PIN_SET);
+        }
+        else
+        {
+            gpio_do_test(DO_1 + start_addr + i, GPIO_PIN_RESET);
+        }
+    }
+}
+void user_read_gpio(uint8_t *const tx_data, uint8_t *const rx_data, uint16_t length)
+{
+    uint8_t i = 0;
+    uint8_t start_addr = rx_data[0]; // 读输入的起始地址
+    uint8_t leng = rx_data[1];       // 读输入的数量
+    for (i = 0; i < leng; i++)
+    {
+        tx_data[i] = gpio_di_test(DI_1 + start_addr + i);
+    }
+}
diff --git a/User/system/user_gpio.h b/User/system/user_gpio.h
new file mode 100644
index 0000000..ffc3fa3
--- /dev/null
+++ b/User/system/user_gpio.h
@@ -0,0 +1,10 @@
+#ifndef __USER_GPIO_H__
+#define __USER_GPIO_H__
+#include "gpio.h"
+#include "main.h"
+#include "communication_protocol.h"
+
+void user_write_gpio(communication_do_t *do_data);
+void user_read_gpio(uint8_t *const tx_data, uint8_t *const rx_data, uint16_t length);
+
+#endif