diff --git a/APP/mymain.c b/APP/mymain.c
index 678131d..ca28307 100644
--- a/APP/mymain.c
+++ b/APP/mymain.c
@@ -15,9 +15,8 @@ uint8_t g_rx_buffer[RXBUFFERSIZE];
 //平均次数
 uint8_t Target_Average_Times = 1;
 
-
-uint16_t Receive_Data_Buffer[USART2_RX_BUFFER_SIZE - 1];
 uint16_t USART2_RX_Buffer[USART2_RX_BUFFER_SIZE];
+uint16_t Receive_Data_Buffer[USART2_RX_BUFFER_SIZE - 1];
 uint16_t Average_Buffer[USART2_RX_BUFFER_SIZE - 1];
 uint16_t Moving_Buffer[10][USART2_RX_BUFFER_SIZE - 1];
 uint16_t Moving_Average_Buffer[USART2_RX_BUFFER_SIZE - 1];
@@ -34,9 +33,9 @@ float Temperature = 0;
  *  3                   发送多次均数据
  *  4                   发送滑动平均数据
  */
-uint8_t Send_Data_Type = 0;
+uint8_t  Send_Data_Type = 0;
 uint32_t sn = 1;
-
+uint8_t busy_sta = 0;
 double bochangxishu[4] = {0,0,0,0};
 
 void swap_buf(uint8_t *p , uint32_t size);
@@ -63,10 +62,9 @@ void Send_Data(uint8_t command,uint8_t *pData, uint16_t Size) {
 
 void mymain()
 {
-    // HAL_Delay(5000);
-    HAL_NVIC_SetPriorityGrouping(2);
 
     HAL_UART_Receive_IT(&huart1, (uint8_t *)g_rx_buffer, RXBUFFERSIZE);
+
     setvbuf(stdout, NULL, _IONBF, 0);
     dma_init(DMA2_Stream7, DMA_REQUEST_USART1_TX);
     /////
@@ -91,6 +89,7 @@ void mymain()
                 if (a != 0) {
                     shutter_time = a;
                     mode = 1;
+                    busy_sta = 0;
                 }
                Last_Receive_Data_Count =  Receive_Data_Count;
                 memset(g_usart_rx_buf,0,200);
@@ -104,7 +103,6 @@ void mymain()
             //处理数据
             if (Receive_Data_Count > Last_Receive_Data_Count)
             {
-                // Send_Data((uint8_t *)Receive_Data_Buffer,USART2_RX_BUFFER_SIZE*2);
                 //2多次平均
                 Average_Times ++;
                 if(Average_Times <= Target_Average_Times ) {
@@ -129,7 +127,7 @@ void mymain()
                 if((Send_Data_Type & 0x80) !=0)
                 {
                     Send_Data_Type = Send_Data_Type & 0x7F;
-                    uint16_t sgi_result[USART2_RX_BUFFER_SIZE];
+                    uint16_t sgi_result[USART2_RX_BUFFER_SIZE - 1];
                     // printf("AAA");
                     switch (Send_Data_Type)
                     {
@@ -152,9 +150,9 @@ void mymain()
                         break;
                     }
                     Send_Data_Type = Send_Data_Type & 0x7F;
+                    busy_sta = 0;
                 }
             }
-
         }
     }
  }
@@ -167,8 +165,14 @@ void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
      {
          __HAL_UART_DISABLE(&huart2);
 
-         memcpy(Receive_Data_Buffer, USART2_RX_Buffer+2, USART2_RX_BUFFER_SIZE*2);
+         memcpy((uint8_t *)Receive_Data_Buffer,&USART2_RX_Buffer[2], (USART2_RX_BUFFER_SIZE-2)*2);
          Receive_Data_Count ++;
+         // if (__HAL_DMA_GET_FLAG(&g_dma_handle, DMA_FLAG_TCIF3_7))
+         // {
+         //     __HAL_DMA_CLEAR_FLAG(&g_dma_handle, DMA_FLAG_TCIF3_7);
+         //     HAL_UART_DMAStop(&huart1);
+         // }
+         // HAL_UART_Transmit_DMA(&huart1,(uint8_t *)Receive_Data_Buffer,USART2_RX_BUFFER_SIZE*2);
 
          HAL_UART_Receive_DMA(&huart2, (uint8_t *)USART2_RX_Buffer, USART2_RX_BUFFER_SIZE*2);
      }
@@ -200,11 +204,18 @@ void commander_run(void)
          // printf("data_length %d \r\n",data_length);
          uint8_t data_type = 0;
          uint8_t command_data[USART_REC_LEN] = {0};
-         // data_length = IRIS_Cut_Befor_Header(g_usart_rx_buf,data_length);
+         data_length = IRIS_Cut_Befor_Header(g_usart_rx_buf,data_length);
          int ret = IRIS_STM32_Protocol_Unpack(g_usart_rx_buf,data_length,&data_type,command_data);
 
          // printf( "ret %d \r\n",ret);
         if (ret > 0) {
+            if (busy_sta == 1) {
+                uint8_t str = 0xff;
+                Send_Data(0x40,&str,1);
+                memset(g_usart_rx_buf,0,200);
+                g_usart_rx_sta=0;
+                return;
+            }
             switch(data_type)
             {
                 // 获取设备信息
@@ -238,6 +249,7 @@ void commander_run(void)
                 //自动曝光
                 case 0x52:{
                     mode = 0;
+                    busy_sta = 1;
                     Send_Data(0x52,command_data,1);
                     break;
                 }
@@ -319,6 +331,7 @@ void commander_run(void)
                 }
                 //获取数据
                 case 0x61: {
+                    busy_sta = 1;
                     Send_Data_Type = Send_Data_Type | 0x80;
                     // Send_Data(0x61,command_data,5);
                     break;
diff --git a/APP/usart1_tx_dma.c b/APP/usart1_tx_dma.c
index 72f7bec..f7bffe4 100644
--- a/APP/usart1_tx_dma.c
+++ b/APP/usart1_tx_dma.c
@@ -18,7 +18,6 @@ void dma_init(DMA_Stream_TypeDef *dma_stream_handle, uint32_t ch)
 
     __HAL_LINKDMA(&huart1,hdmatx, g_dma_handle);
 
-    /* Tx DMA???? */
     g_dma_handle.Instance = dma_stream_handle;
     g_dma_handle.Init.Request = ch;
     g_dma_handle.Init.Direction = DMA_MEMORY_TO_PERIPH;
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 54560a4..357e2d4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -52,7 +52,6 @@ endif ()
 include_directories(Core/Inc Drivers/STM32H7xx_HAL_Driver/Inc Drivers/STM32H7xx_HAL_Driver/Inc/Legacy Drivers/CMSIS/Device/ST/STM32H7xx/Include Drivers/CMSIS/Include)
 include_directories(APP)
 add_definitions(-DDEBUG -DUSE_HAL_DRIVER -DSTM32H743xx)
-
 file(GLOB_RECURSE SOURCES "Core/*.*" "Drivers/*.*" "APP/*.*")
 
 set(LINKER_SCRIPT ${CMAKE_SOURCE_DIR}/STM32H743VITX_FLASH.ld)
diff --git a/CMakeLists_template.txt b/CMakeLists_template.txt
index 3b7fc44..a4ddf44 100644
--- a/CMakeLists_template.txt
+++ b/CMakeLists_template.txt
@@ -49,9 +49,8 @@ else ()
 endif ()
 
 include_directories(${includes})
-
+include_directories(APP)
 add_definitions(${defines})
-
 file(GLOB_RECURSE SOURCES ${sources})
 
 set(LINKER_SCRIPT $${CMAKE_SOURCE_DIR}/${linkerScript})
diff --git a/Core/Inc/stm32h7xx_hal_conf.h b/Core/Inc/stm32h7xx_hal_conf.h
index 0ded535..0353379 100644
--- a/Core/Inc/stm32h7xx_hal_conf.h
+++ b/Core/Inc/stm32h7xx_hal_conf.h
@@ -165,7 +165,7 @@
   * @brief This is the HAL system configuration section
   */
 #define  VDD_VALUE                    (3300UL) /*!< Value of VDD in mv */
-#define  TICK_INT_PRIORITY            (15UL) /*!< tick interrupt priority */
+#define  TICK_INT_PRIORITY            (3UL) /*!< tick interrupt priority */
 #define  USE_RTOS                     0
 #define  USE_SD_TRANSCEIVER           0U               /*!< use uSD Transceiver */
 #define  USE_SPI_CRC	              0U               /*!< use CRC in SPI */
diff --git a/Core/Src/gpio.c b/Core/Src/gpio.c
index 231fe39..6ebae5c 100644
--- a/Core/Src/gpio.c
+++ b/Core/Src/gpio.c
@@ -51,7 +51,7 @@ void MX_GPIO_Init(void)
 
   /*Configure GPIO pin : PA0 */
   GPIO_InitStruct.Pin = GPIO_PIN_0;
-  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
diff --git a/Core/Src/main.c b/Core/Src/main.c
index 4bb3741..94a187e 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -89,8 +89,8 @@ int main(void)
   MX_GPIO_Init();
   MX_TIM5_Init();
   MX_USART1_UART_Init();
-  MX_USART2_UART_Init();
   MX_DMA_Init();
+  MX_USART2_UART_Init();
   /* USER CODE BEGIN 2 */
   mymain();
   /* USER CODE END 2 */
diff --git a/Core/Src/stm32h7xx_hal_msp.c b/Core/Src/stm32h7xx_hal_msp.c
index 3801eca..28277e8 100644
--- a/Core/Src/stm32h7xx_hal_msp.c
+++ b/Core/Src/stm32h7xx_hal_msp.c
@@ -68,6 +68,8 @@ void HAL_MspInit(void)
 
   __HAL_RCC_SYSCFG_CLK_ENABLE();
 
+  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_2);
+
   /* System interrupt init*/
 
   /* USER CODE BEGIN MspInit 1 */
diff --git a/Core/Src/usart.c b/Core/Src/usart.c
index 2550785..97b266f 100644
--- a/Core/Src/usart.c
+++ b/Core/Src/usart.c
@@ -69,6 +69,7 @@ void MX_USART1_UART_Init(void)
   }
   /* USER CODE BEGIN USART1_Init 2 */
 
+
   /* USER CODE END USART1_Init 2 */
 
 }
@@ -260,5 +261,14 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
 }
 
 /* USER CODE BEGIN 1 */
-
+int _write (int fd, char *pBuffer, int size)
+{
+  for (int i = 0; i < size; i++)
+  {
+    USART1->TDR =  (unsigned  char) *(pBuffer+i);
+    while((USART1->ISR & USART_ISR_TC) == 0)
+    {}
+  }
+  return size;
+}
 /* USER CODE END 1 */
diff --git a/IS3.ioc b/IS3.ioc
index e54dd9a..6251a2b 100644
--- a/IS3.ioc
+++ b/IS3.ioc
@@ -54,17 +54,19 @@ MxDb.Version=DB.6.0.60
 NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
 NVIC.DMA1_Stream0_IRQn=true\:0\:0\:false\:false\:true\:false\:true\:true
 NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
-NVIC.EXTI0_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
+NVIC.EXTI0_IRQn=true\:0\:0\:true\:false\:true\:true\:true\:true
 NVIC.ForceEnableDMAVector=true
 NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
 NVIC.MemoryManagement_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
 NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
 NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
-NVIC.PriorityGroup=NVIC_PRIORITYGROUP_4
+NVIC.PriorityGroup=NVIC_PRIORITYGROUP_2
 NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
-NVIC.SysTick_IRQn=true\:15\:0\:false\:false\:true\:false\:true\:false
-NVIC.USART1_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
+NVIC.SysTick_IRQn=true\:3\:0\:true\:false\:true\:false\:true\:false
+NVIC.USART1_IRQn=true\:0\:0\:true\:false\:true\:true\:true\:true
 NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
+PA0.GPIOParameters=GPIO_ModeDefaultEXTI
+PA0.GPIO_ModeDefaultEXTI=GPIO_MODE_IT_FALLING
 PA0.Locked=true
 PA0.Signal=GPXTI0
 PA10.Locked=true
@@ -113,7 +115,7 @@ ProjectManager.StackSize=0x400
 ProjectManager.TargetToolchain=STM32CubeIDE
 ProjectManager.ToolChainLocation=
 ProjectManager.UnderRoot=true
-ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_TIM5_Init-TIM5-false-HAL-true,4-MX_USART1_UART_Init-USART1-false-HAL-true,5-MX_USART2_UART_Init-USART2-false-HAL-true,6-MX_DMA_Init-DMA-false-HAL-true,0-MX_CORTEX_M7_Init-CORTEX_M7-false-HAL-true
+ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_TIM5_Init-TIM5-false-HAL-true,4-MX_USART1_UART_Init-USART1-false-HAL-true,5-MX_DMA_Init-DMA-false-HAL-true,0-MX_CORTEX_M7_Init-CORTEX_M7-false-HAL-true
 RCC.ADCFreq_Value=120000000
 RCC.AHB12Freq_Value=240000000
 RCC.AHB4Freq_Value=240000000
diff --git a/cmake-build-debug-mingw-stm32/.ninja_deps b/cmake-build-debug-mingw-stm32/.ninja_deps
index 4c9fa9a..ca4bf7b 100644
Binary files a/cmake-build-debug-mingw-stm32/.ninja_deps and b/cmake-build-debug-mingw-stm32/.ninja_deps differ
diff --git a/cmake-build-debug-mingw-stm32/.ninja_log b/cmake-build-debug-mingw-stm32/.ninja_log
index afdcdd2..2d6a676 100644
--- a/cmake-build-debug-mingw-stm32/.ninja_log
+++ b/cmake-build-debug-mingw-stm32/.ninja_log
@@ -1,44 +1,54 @@
 # ninja log v6
-3	112	7629522377570124	build.ninja	159a27fadfec0d07
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+4	300	7634653084883963	CMakeFiles/IS3.elf.dir/Core/Src/dma.c.obj	5d8339f27b025692
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+9	318	7634653084933466	CMakeFiles/IS3.elf.dir/Core/Src/gpio.c.obj	c203998600e49f24
+21	328	7634653085063131	CMakeFiles/IS3.elf.dir/Core/Src/stm32h7xx_it.c.obj	8b9b43ed7dbf4b7f
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+        ignore line: [ d:/lijie_tools/clion_cubemx/gcc-arm-none-eabi-10.3-2021.10/bin/../lib/gcc/arm-none-eabi/10.3.1/../../../../arm-none-eabi/bin/as.exe -v -march=armv4t -mfloat-abi=soft -meabi=5 -o CMakeFiles/cmTC_f4b15.dir/CMakeCXXCompilerABI.cpp.obj C:\\Users\\IRIS\\AppData\\Local\\Temp\\cc7HFvyu.s]
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         ignore line: [d:/lijie_tools/clion_cubemx/gcc-arm-none-eabi-10.3-2021.10/bin/../lib/gcc/]
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+        ignore line: [[2/2] C:\\Windows\\system32\\cmd.exe /C "cd . && "C:\\Users\\IRIS\\AppData\\Local\\Programs\\CLion 3\\bin\\cmake\\win\\x64\\bin\\cmake.exe" -E rm -f libcmTC_f4b15.a && arm-none-eabi-ar qc libcmTC_f4b15.a  CMakeFiles/cmTC_f4b15.dir/CMakeCXXCompilerABI.cpp.obj && D:\\lijie_tools\\clion_cubemx\\gcc-arm-none-eabi-10.3-2021.10\\bin\\arm-none-eabi-ranlib.exe libcmTC_f4b15.a && cd ."]
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diff --git a/cmake-build-debug-mingw-stm32/CMakeFiles/clion-Debug-MinGW-STM32-log.txt b/cmake-build-debug-mingw-stm32/CMakeFiles/clion-Debug-MinGW-STM32-log.txt
index baa5fa0..f93c0bd 100644
--- a/cmake-build-debug-mingw-stm32/CMakeFiles/clion-Debug-MinGW-STM32-log.txt
+++ b/cmake-build-debug-mingw-stm32/CMakeFiles/clion-Debug-MinGW-STM32-log.txt
@@ -1,5 +1,19 @@
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+-- The C compiler identification is GNU 10.3.1
+-- The CXX compiler identification is GNU 10.3.1
+-- The ASM compiler identification is GNU
+-- Found assembler: D:/lijie_tools/clion_cubemx/gcc-arm-none-eabi-10.3-2021.10/bin/arm-none-eabi-gcc.exe
+-- Detecting C compiler ABI info
+-- Detecting C compiler ABI info - done
+-- Check for working C compiler: D:/lijie_tools/clion_cubemx/gcc-arm-none-eabi-10.3-2021.10/bin/arm-none-eabi-gcc.exe - skipped
+-- Detecting C compile features
+-- Detecting C compile features - done
+-- Detecting CXX compiler ABI info
+-- Detecting CXX compiler ABI info - done
+-- Check for working CXX compiler: D:/lijie_tools/clion_cubemx/gcc-arm-none-eabi-10.3-2021.10/bin/arm-none-eabi-g++.exe - skipped
+-- Detecting CXX compile features
+-- Detecting CXX compile features - done
 -- Minimal optimization, debug info included
--- Configuring done (0.0s)
--- Generating done (0.0s)
+-- Configuring done (3.0s)
+-- Generating done (0.2s)
 -- Build files have been written to: D:/lijie/Code/IS3/cmake-build-debug-mingw-stm32
diff --git a/cmake-build-debug-mingw-stm32/CMakeFiles/rules.ninja b/cmake-build-debug-mingw-stm32/CMakeFiles/rules.ninja
index 1f1f205..ab60a04 100644
--- a/cmake-build-debug-mingw-stm32/CMakeFiles/rules.ninja
+++ b/cmake-build-debug-mingw-stm32/CMakeFiles/rules.ninja
@@ -61,7 +61,7 @@ rule RERUN_CMAKE
 # Rule for cleaning all built files.
 
 rule CLEAN
-  command = "C:\Users\IRIS\AppData\Local\Programs\CLion 3\bin\ninja\win\x64\ninja.exe" $FILE_ARG -t clean $TARGETS
+  command = C:\Users\IRIS\AppData\Local\Programs\CLION3~1\bin\ninja\win\x64\ninja.exe $FILE_ARG -t clean $TARGETS
   description = Cleaning all built files...
 
 
@@ -69,6 +69,6 @@ rule CLEAN
 # Rule for printing all primary targets available.
 
 rule HELP
-  command = "C:\Users\IRIS\AppData\Local\Programs\CLion 3\bin\ninja\win\x64\ninja.exe" -t targets
+  command = C:\Users\IRIS\AppData\Local\Programs\CLION3~1\bin\ninja\win\x64\ninja.exe -t targets
   description = All primary targets available:
 
diff --git a/readme/IS3通讯协议.doc b/readme/IS3通讯协议.doc
index 95e150e..86a6288 100644
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diff --git a/readme/IS3通讯协议.pdf b/readme/IS3通讯协议.pdf
index c98bae4..497ea93 100644
Binary files a/readme/IS3通讯协议.pdf and b/readme/IS3通讯协议.pdf differ