diff --git a/.cproject b/.cproject
index cec58b3..cf2f299 100644
--- a/.cproject
+++ b/.cproject
@@ -40,7 +40,7 @@
 							</tool>
 							<tool id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.782799112" name="MCU GCC Compiler" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler">
 								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.debuglevel.1115926827" name="Debug level" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.debuglevel" useByScannerDiscovery="false" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.debuglevel.value.g3" valueType="enumerated"/>
-								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level.390305872" name="Optimization level" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level" useByScannerDiscovery="false" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level.value.ofast" valueType="enumerated"/>
+								<option id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level.390305872" name="Optimization level" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level" useByScannerDiscovery="false" value="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.optimization.level.value.o0" valueType="enumerated"/>
 								<option IS_BUILTIN_EMPTY="false" IS_VALUE_EMPTY="false" id="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.definedsymbols.1156405800" name="Define symbols (-D)" superClass="com.st.stm32cube.ide.mcu.gnu.managedbuild.tool.c.compiler.option.definedsymbols" useByScannerDiscovery="false" valueType="definedSymbols">
 									<listOptionValue builtIn="false" value="DEBUG"/>
 									<listOptionValue builtIn="false" value="USE_HAL_DRIVER"/>
diff --git a/.settings/language.settings.xml b/.settings/language.settings.xml
index 68941f4..c0c5b7c 100644
--- a/.settings/language.settings.xml
+++ b/.settings/language.settings.xml
@@ -5,7 +5,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="201303414476292090" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="1899454659046248567" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
@@ -16,7 +16,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="148507298767213675" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" console="false" env-hash="1846658543337170152" id="com.st.stm32cube.ide.mcu.toolchain.armnone.setup.CrossBuiltinSpecsDetector" keep-relative-paths="false" name="MCU ARM GCC Built-in Compiler Settings" parameter="${COMMAND} ${FLAGS} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>
diff --git a/Core/Inc/stm32f4xx_it.h b/Core/Inc/stm32f4xx_it.h
index 10e1eed..2012bab 100644
--- a/Core/Inc/stm32f4xx_it.h
+++ b/Core/Inc/stm32f4xx_it.h
@@ -54,7 +54,6 @@ void UsageFault_Handler(void);
 void DebugMon_Handler(void);
 void DMA1_Stream1_IRQHandler(void);
 void DMA1_Stream3_IRQHandler(void);
-void DMA1_Stream4_IRQHandler(void);
 void TIM1_TRG_COM_TIM11_IRQHandler(void);
 void SPI1_IRQHandler(void);
 void USART3_IRQHandler(void);
diff --git a/Core/Src/dma.c b/Core/Src/dma.c
index ff7e72c..8465cd0 100644
--- a/Core/Src/dma.c
+++ b/Core/Src/dma.c
@@ -50,9 +50,6 @@ void MX_DMA_Init(void)
   /* DMA1_Stream3_IRQn interrupt configuration */
   HAL_NVIC_SetPriority(DMA1_Stream3_IRQn, 5, 0);
   HAL_NVIC_EnableIRQ(DMA1_Stream3_IRQn);
-  /* DMA1_Stream4_IRQn interrupt configuration */
-  HAL_NVIC_SetPriority(DMA1_Stream4_IRQn, 5, 0);
-  HAL_NVIC_EnableIRQ(DMA1_Stream4_IRQn);
   /* DMA2_Stream0_IRQn interrupt configuration */
   HAL_NVIC_SetPriority(DMA2_Stream0_IRQn, 5, 0);
   HAL_NVIC_EnableIRQ(DMA2_Stream0_IRQn);
diff --git a/Core/Src/gpio.c b/Core/Src/gpio.c
index e608524..e28f8bd 100644
--- a/Core/Src/gpio.c
+++ b/Core/Src/gpio.c
@@ -71,10 +71,10 @@ void MX_GPIO_Init(void)
 
   /*Configure GPIO pins : PC13 PC14 PC15 PC0
                            PC2 PC3 PC8 PC9
-                           PC10 PC11 PC12 */
+                           PC12 */
   GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_0
                           |GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_8|GPIO_PIN_9
-                          |GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12;
+                          |GPIO_PIN_12;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
@@ -87,24 +87,24 @@ void MX_GPIO_Init(void)
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
-  /*Configure GPIO pins : PB0 PB1 PB2 PB14
-                           PB15 PB3 PB4 PB6
-                           PB7 PB8 PB9 */
-  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_14
-                          |GPIO_PIN_15|GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_6
-                          |GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9;
+  /*Configure GPIO pins : PB0 PB1 PB2 PB10
+                           PB14 PB15 PB3 PB4
+                           PB6 PB7 PB8 PB9 */
+  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_10
+                          |GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_3|GPIO_PIN_4
+                          |GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 
-  /*Configure GPIO pins : PD8 PD10 PD11 PD12
-                           PD13 PD14 PD15 PD0
-                           PD1 PD2 PD4 PD5
-                           PD6 PD7 */
-  GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12
-                          |GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_0
-                          |GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_4|GPIO_PIN_5
-                          |GPIO_PIN_6|GPIO_PIN_7;
+  /*Configure GPIO pins : PD8 PD9 PD10 PD11
+                           PD12 PD13 PD14 PD15
+                           PD0 PD1 PD2 PD4
+                           PD5 PD6 PD7 */
+  GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11
+                          |GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15
+                          |GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_4
+                          |GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
diff --git a/Core/Src/stm32f4xx_it.c b/Core/Src/stm32f4xx_it.c
index d54c1a4..93a3170 100644
--- a/Core/Src/stm32f4xx_it.c
+++ b/Core/Src/stm32f4xx_it.c
@@ -64,6 +64,7 @@ extern TIM_HandleTypeDef htim6;
 extern TIM_HandleTypeDef htim7;
 extern DMA_HandleTypeDef hdma_usart1_rx;
 extern DMA_HandleTypeDef hdma_usart3_rx;
+extern DMA_HandleTypeDef hdma_usart3_tx;
 extern DMA_HandleTypeDef hdma_usart6_rx;
 extern DMA_HandleTypeDef hdma_usart6_tx;
 extern UART_HandleTypeDef huart3;
@@ -193,25 +194,13 @@ void DMA1_Stream3_IRQHandler(void)
   /* USER CODE BEGIN DMA1_Stream3_IRQn 0 */
 
   /* USER CODE END DMA1_Stream3_IRQn 0 */
+  HAL_DMA_IRQHandler(&hdma_usart3_tx);
   /* USER CODE BEGIN DMA1_Stream3_IRQn 1 */
 
   /* USER CODE END DMA1_Stream3_IRQn 1 */
 }
 
 /**
-  * @brief This function handles DMA1 stream4 global interrupt.
-  */
-void DMA1_Stream4_IRQHandler(void)
-{
-  /* USER CODE BEGIN DMA1_Stream4_IRQn 0 */
-
-  /* USER CODE END DMA1_Stream4_IRQn 0 */
-  /* USER CODE BEGIN DMA1_Stream4_IRQn 1 */
-
-  /* USER CODE END DMA1_Stream4_IRQn 1 */
-}
-
-/**
   * @brief This function handles TIM1 trigger and commutation interrupts and TIM11 global interrupt.
   */
 void TIM1_TRG_COM_TIM11_IRQHandler(void)
diff --git a/Core/Src/usart.c b/Core/Src/usart.c
index 6fb5bab..b744de6 100644
--- a/Core/Src/usart.c
+++ b/Core/Src/usart.c
@@ -29,6 +29,7 @@ UART_HandleTypeDef huart3;
 UART_HandleTypeDef huart6;
 DMA_HandleTypeDef hdma_usart1_rx;
 DMA_HandleTypeDef hdma_usart3_rx;
+DMA_HandleTypeDef hdma_usart3_tx;
 DMA_HandleTypeDef hdma_usart6_rx;
 DMA_HandleTypeDef hdma_usart6_tx;
 
@@ -175,25 +176,17 @@ void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
     /* USART3 clock enable */
     __HAL_RCC_USART3_CLK_ENABLE();
 
-    __HAL_RCC_GPIOB_CLK_ENABLE();
-    __HAL_RCC_GPIOD_CLK_ENABLE();
+    __HAL_RCC_GPIOC_CLK_ENABLE();
     /**USART3 GPIO Configuration
-    PB10     ------> USART3_TX
-    PD9     ------> USART3_RX
+    PC10     ------> USART3_TX
+    PC11     ------> USART3_RX
     */
-    GPIO_InitStruct.Pin = GPIO_PIN_10;
+    GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_11;
     GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
     GPIO_InitStruct.Pull = GPIO_NOPULL;
     GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
     GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
-    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
-
-    GPIO_InitStruct.Pin = GPIO_PIN_9;
-    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
-    GPIO_InitStruct.Pull = GPIO_NOPULL;
-    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
-    GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
-    HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
+    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
 
     /* USART3 DMA Init */
     /* USART3_RX Init */
@@ -214,6 +207,24 @@ void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
 
     __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart3_rx);
 
+    /* USART3_TX Init */
+    hdma_usart3_tx.Instance = DMA1_Stream3;
+    hdma_usart3_tx.Init.Channel = DMA_CHANNEL_4;
+    hdma_usart3_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
+    hdma_usart3_tx.Init.PeriphInc = DMA_PINC_DISABLE;
+    hdma_usart3_tx.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_usart3_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
+    hdma_usart3_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
+    hdma_usart3_tx.Init.Mode = DMA_NORMAL;
+    hdma_usart3_tx.Init.Priority = DMA_PRIORITY_LOW;
+    hdma_usart3_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
+    if (HAL_DMA_Init(&hdma_usart3_tx) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart3_tx);
+
     /* USART3 interrupt Init */
     HAL_NVIC_SetPriority(USART3_IRQn, 5, 0);
     HAL_NVIC_EnableIRQ(USART3_IRQn);
@@ -316,15 +327,14 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
     __HAL_RCC_USART3_CLK_DISABLE();
 
     /**USART3 GPIO Configuration
-    PB10     ------> USART3_TX
-    PD9     ------> USART3_RX
+    PC10     ------> USART3_TX
+    PC11     ------> USART3_RX
     */
-    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_10);
-
-    HAL_GPIO_DeInit(GPIOD, GPIO_PIN_9);
+    HAL_GPIO_DeInit(GPIOC, GPIO_PIN_10|GPIO_PIN_11);
 
     /* USART3 DMA DeInit */
     HAL_DMA_DeInit(uartHandle->hdmarx);
+    HAL_DMA_DeInit(uartHandle->hdmatx);
 
     /* USART3 interrupt Deinit */
     HAL_NVIC_DisableIRQ(USART3_IRQn);
diff --git a/camera_light_src_timing_controller_stm32.ioc b/camera_light_src_timing_controller_stm32.ioc
index e637d0a..0650fb0 100644
--- a/camera_light_src_timing_controller_stm32.ioc
+++ b/camera_light_src_timing_controller_stm32.ioc
@@ -3,54 +3,33 @@ CAD.formats=
 CAD.pinconfig=
 CAD.provider=
 Dma.Request0=USART1_RX
-Dma.Request1=SPI2_TX
-Dma.Request2=SPI2_RX
-Dma.Request3=SPI1_RX
-Dma.Request4=SPI1_TX
-Dma.Request5=USART3_RX
-Dma.Request6=USART6_RX
-Dma.Request7=USART6_TX
-Dma.RequestsNb=8
-Dma.SPI1_RX.3.Direction=DMA_PERIPH_TO_MEMORY
-Dma.SPI1_RX.3.FIFOMode=DMA_FIFOMODE_DISABLE
-Dma.SPI1_RX.3.Instance=DMA2_Stream0
-Dma.SPI1_RX.3.MemDataAlignment=DMA_MDATAALIGN_BYTE
-Dma.SPI1_RX.3.MemInc=DMA_MINC_ENABLE
-Dma.SPI1_RX.3.Mode=DMA_NORMAL
-Dma.SPI1_RX.3.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
-Dma.SPI1_RX.3.PeriphInc=DMA_PINC_DISABLE
-Dma.SPI1_RX.3.Priority=DMA_PRIORITY_LOW
-Dma.SPI1_RX.3.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
-Dma.SPI1_TX.4.Direction=DMA_MEMORY_TO_PERIPH
-Dma.SPI1_TX.4.FIFOMode=DMA_FIFOMODE_DISABLE
-Dma.SPI1_TX.4.Instance=DMA2_Stream3
-Dma.SPI1_TX.4.MemDataAlignment=DMA_MDATAALIGN_BYTE
-Dma.SPI1_TX.4.MemInc=DMA_MINC_ENABLE
-Dma.SPI1_TX.4.Mode=DMA_NORMAL
-Dma.SPI1_TX.4.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
-Dma.SPI1_TX.4.PeriphInc=DMA_PINC_DISABLE
-Dma.SPI1_TX.4.Priority=DMA_PRIORITY_LOW
-Dma.SPI1_TX.4.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
-Dma.SPI2_RX.2.Direction=DMA_PERIPH_TO_MEMORY
-Dma.SPI2_RX.2.FIFOMode=DMA_FIFOMODE_DISABLE
-Dma.SPI2_RX.2.Instance=DMA1_Stream3
-Dma.SPI2_RX.2.MemDataAlignment=DMA_MDATAALIGN_BYTE
-Dma.SPI2_RX.2.MemInc=DMA_MINC_ENABLE
-Dma.SPI2_RX.2.Mode=DMA_NORMAL
-Dma.SPI2_RX.2.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
-Dma.SPI2_RX.2.PeriphInc=DMA_PINC_DISABLE
-Dma.SPI2_RX.2.Priority=DMA_PRIORITY_LOW
-Dma.SPI2_RX.2.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
-Dma.SPI2_TX.1.Direction=DMA_MEMORY_TO_PERIPH
-Dma.SPI2_TX.1.FIFOMode=DMA_FIFOMODE_DISABLE
-Dma.SPI2_TX.1.Instance=DMA1_Stream4
-Dma.SPI2_TX.1.MemDataAlignment=DMA_MDATAALIGN_BYTE
-Dma.SPI2_TX.1.MemInc=DMA_MINC_ENABLE
-Dma.SPI2_TX.1.Mode=DMA_NORMAL
-Dma.SPI2_TX.1.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
-Dma.SPI2_TX.1.PeriphInc=DMA_PINC_DISABLE
-Dma.SPI2_TX.1.Priority=DMA_PRIORITY_LOW
-Dma.SPI2_TX.1.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
+Dma.Request1=SPI1_RX
+Dma.Request2=SPI1_TX
+Dma.Request3=USART3_RX
+Dma.Request4=USART6_RX
+Dma.Request5=USART6_TX
+Dma.Request6=USART3_TX
+Dma.RequestsNb=7
+Dma.SPI1_RX.1.Direction=DMA_PERIPH_TO_MEMORY
+Dma.SPI1_RX.1.FIFOMode=DMA_FIFOMODE_DISABLE
+Dma.SPI1_RX.1.Instance=DMA2_Stream0
+Dma.SPI1_RX.1.MemDataAlignment=DMA_MDATAALIGN_BYTE
+Dma.SPI1_RX.1.MemInc=DMA_MINC_ENABLE
+Dma.SPI1_RX.1.Mode=DMA_NORMAL
+Dma.SPI1_RX.1.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
+Dma.SPI1_RX.1.PeriphInc=DMA_PINC_DISABLE
+Dma.SPI1_RX.1.Priority=DMA_PRIORITY_LOW
+Dma.SPI1_RX.1.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
+Dma.SPI1_TX.2.Direction=DMA_MEMORY_TO_PERIPH
+Dma.SPI1_TX.2.FIFOMode=DMA_FIFOMODE_DISABLE
+Dma.SPI1_TX.2.Instance=DMA2_Stream3
+Dma.SPI1_TX.2.MemDataAlignment=DMA_MDATAALIGN_BYTE
+Dma.SPI1_TX.2.MemInc=DMA_MINC_ENABLE
+Dma.SPI1_TX.2.Mode=DMA_NORMAL
+Dma.SPI1_TX.2.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
+Dma.SPI1_TX.2.PeriphInc=DMA_PINC_DISABLE
+Dma.SPI1_TX.2.Priority=DMA_PRIORITY_LOW
+Dma.SPI1_TX.2.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
 Dma.USART1_RX.0.Direction=DMA_PERIPH_TO_MEMORY
 Dma.USART1_RX.0.FIFOMode=DMA_FIFOMODE_DISABLE
 Dma.USART1_RX.0.Instance=DMA2_Stream2
@@ -61,36 +40,46 @@ Dma.USART1_RX.0.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
 Dma.USART1_RX.0.PeriphInc=DMA_PINC_DISABLE
 Dma.USART1_RX.0.Priority=DMA_PRIORITY_LOW
 Dma.USART1_RX.0.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
-Dma.USART3_RX.5.Direction=DMA_PERIPH_TO_MEMORY
-Dma.USART3_RX.5.FIFOMode=DMA_FIFOMODE_DISABLE
-Dma.USART3_RX.5.Instance=DMA1_Stream1
-Dma.USART3_RX.5.MemDataAlignment=DMA_MDATAALIGN_BYTE
-Dma.USART3_RX.5.MemInc=DMA_MINC_ENABLE
-Dma.USART3_RX.5.Mode=DMA_NORMAL
-Dma.USART3_RX.5.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
-Dma.USART3_RX.5.PeriphInc=DMA_PINC_DISABLE
-Dma.USART3_RX.5.Priority=DMA_PRIORITY_LOW
-Dma.USART3_RX.5.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
-Dma.USART6_RX.6.Direction=DMA_PERIPH_TO_MEMORY
-Dma.USART6_RX.6.FIFOMode=DMA_FIFOMODE_DISABLE
-Dma.USART6_RX.6.Instance=DMA2_Stream1
-Dma.USART6_RX.6.MemDataAlignment=DMA_MDATAALIGN_BYTE
-Dma.USART6_RX.6.MemInc=DMA_MINC_ENABLE
-Dma.USART6_RX.6.Mode=DMA_NORMAL
-Dma.USART6_RX.6.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
-Dma.USART6_RX.6.PeriphInc=DMA_PINC_DISABLE
-Dma.USART6_RX.6.Priority=DMA_PRIORITY_LOW
-Dma.USART6_RX.6.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
-Dma.USART6_TX.7.Direction=DMA_MEMORY_TO_PERIPH
-Dma.USART6_TX.7.FIFOMode=DMA_FIFOMODE_DISABLE
-Dma.USART6_TX.7.Instance=DMA2_Stream6
-Dma.USART6_TX.7.MemDataAlignment=DMA_MDATAALIGN_BYTE
-Dma.USART6_TX.7.MemInc=DMA_MINC_ENABLE
-Dma.USART6_TX.7.Mode=DMA_NORMAL
-Dma.USART6_TX.7.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
-Dma.USART6_TX.7.PeriphInc=DMA_PINC_DISABLE
-Dma.USART6_TX.7.Priority=DMA_PRIORITY_LOW
-Dma.USART6_TX.7.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
+Dma.USART3_RX.3.Direction=DMA_PERIPH_TO_MEMORY
+Dma.USART3_RX.3.FIFOMode=DMA_FIFOMODE_DISABLE
+Dma.USART3_RX.3.Instance=DMA1_Stream1
+Dma.USART3_RX.3.MemDataAlignment=DMA_MDATAALIGN_BYTE
+Dma.USART3_RX.3.MemInc=DMA_MINC_ENABLE
+Dma.USART3_RX.3.Mode=DMA_NORMAL
+Dma.USART3_RX.3.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
+Dma.USART3_RX.3.PeriphInc=DMA_PINC_DISABLE
+Dma.USART3_RX.3.Priority=DMA_PRIORITY_LOW
+Dma.USART3_RX.3.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
+Dma.USART3_TX.6.Direction=DMA_MEMORY_TO_PERIPH
+Dma.USART3_TX.6.FIFOMode=DMA_FIFOMODE_DISABLE
+Dma.USART3_TX.6.Instance=DMA1_Stream3
+Dma.USART3_TX.6.MemDataAlignment=DMA_MDATAALIGN_BYTE
+Dma.USART3_TX.6.MemInc=DMA_MINC_ENABLE
+Dma.USART3_TX.6.Mode=DMA_NORMAL
+Dma.USART3_TX.6.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
+Dma.USART3_TX.6.PeriphInc=DMA_PINC_DISABLE
+Dma.USART3_TX.6.Priority=DMA_PRIORITY_LOW
+Dma.USART3_TX.6.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
+Dma.USART6_RX.4.Direction=DMA_PERIPH_TO_MEMORY
+Dma.USART6_RX.4.FIFOMode=DMA_FIFOMODE_DISABLE
+Dma.USART6_RX.4.Instance=DMA2_Stream1
+Dma.USART6_RX.4.MemDataAlignment=DMA_MDATAALIGN_BYTE
+Dma.USART6_RX.4.MemInc=DMA_MINC_ENABLE
+Dma.USART6_RX.4.Mode=DMA_NORMAL
+Dma.USART6_RX.4.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
+Dma.USART6_RX.4.PeriphInc=DMA_PINC_DISABLE
+Dma.USART6_RX.4.Priority=DMA_PRIORITY_LOW
+Dma.USART6_RX.4.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
+Dma.USART6_TX.5.Direction=DMA_MEMORY_TO_PERIPH
+Dma.USART6_TX.5.FIFOMode=DMA_FIFOMODE_DISABLE
+Dma.USART6_TX.5.Instance=DMA2_Stream6
+Dma.USART6_TX.5.MemDataAlignment=DMA_MDATAALIGN_BYTE
+Dma.USART6_TX.5.MemInc=DMA_MINC_ENABLE
+Dma.USART6_TX.5.Mode=DMA_NORMAL
+Dma.USART6_TX.5.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
+Dma.USART6_TX.5.PeriphInc=DMA_PINC_DISABLE
+Dma.USART6_TX.5.Priority=DMA_PRIORITY_LOW
+Dma.USART6_TX.5.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority,FIFOMode
 ETH.IPParameters=MediaInterface,RxBuffLen,RxMode,PHY_Name_RMII,PHY_User_Name,PHY_SR,PHY_SPEED_STATUS,PHY_DUPLEX_STATUS,MACAddr
 ETH.MACAddr=00\:80\:E1\:00\:00\:01
 ETH.MediaInterface=HAL_ETH_RMII_MODE
@@ -159,18 +148,18 @@ Mcu.Package=LQFP100
 Mcu.Pin0=PH0-OSC_IN
 Mcu.Pin1=PH1-OSC_OUT
 Mcu.Pin10=PC5
-Mcu.Pin11=PB10
-Mcu.Pin12=PB11
-Mcu.Pin13=PB12
-Mcu.Pin14=PB13
-Mcu.Pin15=PD9
-Mcu.Pin16=PC6
-Mcu.Pin17=PC7
-Mcu.Pin18=PA9
-Mcu.Pin19=PA10
+Mcu.Pin11=PB11
+Mcu.Pin12=PB12
+Mcu.Pin13=PB13
+Mcu.Pin14=PC6
+Mcu.Pin15=PC7
+Mcu.Pin16=PA9
+Mcu.Pin17=PA10
+Mcu.Pin18=PA13
+Mcu.Pin19=PA14
 Mcu.Pin2=PC1
-Mcu.Pin20=PA13
-Mcu.Pin21=PA14
+Mcu.Pin20=PC10
+Mcu.Pin21=PC11
 Mcu.Pin22=PD3
 Mcu.Pin23=PB5
 Mcu.Pin24=VP_CRC_VS_CRC
@@ -198,7 +187,6 @@ MxDb.Version=DB.6.0.70
 NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
 NVIC.DMA1_Stream1_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
 NVIC.DMA1_Stream3_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
-NVIC.DMA1_Stream4_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
 NVIC.DMA2_Stream0_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
 NVIC.DMA2_Stream1_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
 NVIC.DMA2_Stream2_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
@@ -246,8 +234,6 @@ PA7.Signal=ETH_CRS_DV
 PA9.Locked=true
 PA9.Mode=Asynchronous
 PA9.Signal=USART1_TX
-PB10.Mode=Asynchronous
-PB10.Signal=USART3_TX
 PB11.Mode=RMII
 PB11.Signal=ETH_TX_EN
 PB12.Mode=RMII
@@ -258,6 +244,12 @@ PB5.Mode=Full_Duplex_Master
 PB5.Signal=SPI1_MOSI
 PC1.Mode=RMII
 PC1.Signal=ETH_MDC
+PC10.Locked=true
+PC10.Mode=Asynchronous
+PC10.Signal=USART3_TX
+PC11.Locked=true
+PC11.Mode=Asynchronous
+PC11.Signal=USART3_RX
 PC4.Mode=RMII
 PC4.Signal=ETH_RXD0
 PC5.Mode=RMII
@@ -268,8 +260,6 @@ PC7.Mode=Asynchronous
 PC7.Signal=USART6_RX
 PD3.Locked=true
 PD3.Signal=GPIO_Output
-PD9.Mode=Asynchronous
-PD9.Signal=USART3_RX
 PH0-OSC_IN.Mode=HSE-External-Oscillator
 PH0-OSC_IN.Signal=RCC_OSC_IN
 PH1-OSC_OUT.Mode=HSE-External-Oscillator
diff --git a/usrc/service/extern_if_service.c b/usrc/service/extern_if_service.c
index 8ef3dc1..2313ac0 100644
--- a/usrc/service/extern_if_service.c
+++ b/usrc/service/extern_if_service.c
@@ -10,6 +10,7 @@
 typedef struct {
   zaf_packet_header_t *rxpacket;
   zaf_buf_t            receipt;
+  bool                 resetBoard;
 } extern_if_service_context_t;
 
 static udp_t m_udp_cmd_server;            //
@@ -60,11 +61,11 @@ static void create_receipt(extern_if_service_context_t *context, uint32_t ecode,
  *******************************************************************************/
 
 static bool process_rx_packet(extern_if_service_context_t *cx, uint8_t *data, uint16_t len) {
-  ZLOGI(TAG, "udp_on_packet %d:", len);
-  for (int i = 0; i < len; i++) {
-    printf("%02x ", data[i]);
-  }
-  printf("\n");
+  // ZLOGI(TAG, "process_rx_packet %d:", len);
+  // for (int i = 0; i < len; i++) {
+  //   printf("%02x ", data[i]);
+  // }
+  // printf("\n");
   zaf_packet_header_t *rxpacket = (zaf_packet_header_t *)data;
   cx->rxpacket                  = rxpacket;
 
@@ -103,9 +104,11 @@ static bool process_rx_packet(extern_if_service_context_t *cx, uint8_t *data, ui
     create_receipt(cx, 0, NULL, 0);
   } else if (rxpacket->cmd == kzaf_cmd_factory_reset) {
     config_factory_reset();
-    NVIC_SystemReset();
+    cx->resetBoard = true;
+    create_receipt(cx, 0, NULL, 0);
   } else if (rxpacket->cmd == kzaf_cmd_reboot) {
-    NVIC_SystemReset();
+    cx->resetBoard = true;
+    create_receipt(cx, 0, NULL, 0);
   } else if (rxpacket->cmd == kzaf_cmd_storage_cfg) {
     config_flush();
     create_receipt(cx, 0, NULL, 0);
@@ -116,7 +119,6 @@ static bool process_rx_packet(extern_if_service_context_t *cx, uint8_t *data, ui
 /*******************************************************************************
  *                                    框架                                     *
  *******************************************************************************/
-
 /**
  * @brief UDP消息接收消息处理
  *
@@ -126,21 +128,26 @@ static bool process_rx_packet(extern_if_service_context_t *cx, uint8_t *data, ui
  * @param len
  */
 static void udp_on_packet(udp_t *server, struct sockaddr_in *client, uint8_t *data, uint16_t len) {
-  extern_if_service_context_t cx;
+  extern_if_service_context_t cx  = {0};
   bool                        ret = process_rx_packet(&cx, data, len);
   if (ret) {
     zaf_udp_send_message2(server, client, (const char *)cx.receipt.data, cx.receipt.len);
 
     m_last_rxpacket_client_valid = true;
     memcpy(&m_last_rxpacket_client, client, sizeof(struct sockaddr_in));
+
+    osDelay(5);
+    if (cx.resetBoard) NVIC_SystemReset();
   }
 }
 
 static void uart_on_packet(uint8_t *packet, uint32_t len) {
-  extern_if_service_context_t cx;
+  extern_if_service_context_t cx  = {0};
   bool                        ret = process_rx_packet(&cx, packet, len);
   if (ret) {
     HAL_UART_Transmit(&COMMAND_UART, (uint8_t *)cx.receipt.data, cx.receipt.len, 1000);
+    osDelay(2);
+    if (cx.resetBoard) NVIC_SystemReset();
   }
 }
 
@@ -173,7 +180,6 @@ static void uart_receiver_thread(const void *) {
 void extern_if_service_init() {  //
   ZASSERT(zaf_udp_init(&m_udp_cmd_server, "extern_if_udp", ZAF_SERVICE_DEVICE_PORT, udp_on_packet, 1024, NULL));
 
-
   osThreadDef(cmdUartReceiverThread, uart_receiver_thread, osPriorityNormal, 0, 512);
   m_cmd_uart_receiver_thread = osThreadCreate(osThread(cmdUartReceiverThread), NULL);
   ZASSERT(m_cmd_uart_receiver_thread != NULL);