diff --git a/f1/usart/include/usart1.h b/f1/usart/include/usart1.h
index 7909f03cefbaf6b33197646a474a4b0843d647a5..2219fcb743cdfaa0041ed0f24313e52ea6c21d81 100644
--- a/f1/usart/include/usart1.h
+++ b/f1/usart/include/usart1.h
@@ -1,5 +1,5 @@
-#ifndef USART3_F1_H
-#define USART3_F1_H
+#ifndef USART1_F1_H
+#define USART1_F1_H
 
 #include "stm32f1xx_hal.h"
 #include "usart_common.h"
diff --git a/f1/usart/include/usart2.h b/f1/usart/include/usart2.h
index 21891f0f7f9d9f6fc388ad877d6dd588e2aed613..259d248175c379593fbf485a7efcbc1281cad025 100644
--- a/f1/usart/include/usart2.h
+++ b/f1/usart/include/usart2.h
@@ -6,9 +6,9 @@
 #include "comm.h"
 
 /* public functions */
-void usart2_init(TComm *comm_dev,UART_InitTypeDef *conf,TUSART_IRQ_Priorities *priorities);
+void usart2_init(TComm *comm_dev,UART_InitTypeDef *conf,TUART_IRQ_Priorities *priorities);
 void usart2_config(TComm *comm_dev,UART_InitTypeDef *conf);
-void usart2_set_priorities(TComm *comm_dev,TUSART_IRQ_Priorities *priorities);
+void usart2_set_priorities(TComm *comm_dev,TUART_IRQ_Priorities *priorities);
 void usart2_set_baudrate(TComm *comm_dev,unsigned int baudrate);
 /* IRQ functions */
 unsigned char usart2_send_irq(unsigned char first_byte);
diff --git a/f1/usart/src/usart1_remap.c b/f1/usart/src/usart1_remap.c
index 5c5427c1687f71d9767471219143a15dfd84d1b6..51152f3a1a575e9e9242249970f7710cea73a837 100644
--- a/f1/usart/src/usart1_remap.c
+++ b/f1/usart/src/usart1_remap.c
@@ -26,7 +26,7 @@
 #define     USART_DMA_RX_IRQHandler  DMA1_Channel5_IRQHandler
 
 // private variables
-UART_HandleTypeDef Uart1Handle;
+USART_HandleTypeDef Uart1Handle;
 DMA_HandleTypeDef usart1_hdma_tx;
 DMA_HandleTypeDef usart1_hdma_rx;
 TComm *usart1_comm_dev;
@@ -37,56 +37,56 @@ void USART_IRQHandler(void)
   unsigned char data,ret;
   uint32_t source;
 
-  if(__HAL_UART_GET_FLAG(&Uart1Handle, UART_FLAG_RXNE) != RESET)
+  if(__HAL_USART_GET_FLAG(&Uart1Handle, USART_FLAG_RXNE) != RESET)
   {
-    if(__HAL_UART_GET_IT_SOURCE(&Uart1Handle, UART_IT_RXNE) !=RESET)
+    if(__HAL_USART_GET_IT_SOURCE(&Uart1Handle, USART_IT_RXNE) !=RESET)
     {
-      __HAL_UART_CLEAR_FLAG(&Uart1Handle,UART_FLAG_RXNE);
+      __HAL_USART_CLEAR_FLAG(&Uart1Handle,USART_FLAG_RXNE);
       data=(uint8_t)(Uart1Handle.Instance->DR & (uint8_t)0x00FF);
       // call the reception function
       if(!comm_do_irq_receive(usart1_comm_dev,data))
-        __HAL_UART_DISABLE_IT(&Uart1Handle, UART_IT_RXNE);
+        __HAL_USART_DISABLE_IT(&Uart1Handle, USART_IT_RXNE);
     }
   }
-  if(__HAL_UART_GET_FLAG(&Uart1Handle, UART_FLAG_TC) != RESET)
+  if(__HAL_USART_GET_FLAG(&Uart1Handle, USART_FLAG_TC) != RESET)
   {
-    if(__HAL_UART_GET_IT_SOURCE(&Uart1Handle, UART_IT_TC) !=RESET)
+    if(__HAL_USART_GET_IT_SOURCE(&Uart1Handle, USART_IT_TC) !=RESET)
     {
-      __HAL_UART_CLEAR_FLAG(&Uart1Handle,UART_FLAG_TC);
+      __HAL_USART_CLEAR_FLAG(&Uart1Handle,USART_FLAG_TC);
       ret=comm_do_irq_send(usart1_comm_dev,&data);
       if(ret==0x01)
         Uart1Handle.Instance->DR=data;
       else if(ret==0x00)
-        __HAL_UART_DISABLE_IT(&Uart1Handle, UART_IT_TC);
+        __HAL_USART_DISABLE_IT(&Uart1Handle, USART_IT_TC);
     }
   }
-  if(__HAL_UART_GET_FLAG(&Uart1Handle, UART_FLAG_PE) != RESET)// parity error
+  if(__HAL_USART_GET_FLAG(&Uart1Handle, USART_FLAG_PE) != RESET)// parity error
   {
-    if(__HAL_UART_GET_IT_SOURCE(&Uart1Handle, UART_IT_PE) !=RESET)
+    if(__HAL_USART_GET_IT_SOURCE(&Uart1Handle, USART_IT_PE) !=RESET)
     {
-      __HAL_UART_CLEAR_PEFLAG(&Uart1Handle);
+      __HAL_USART_CLEAR_PEFLAG(&Uart1Handle);
     }
   }
-  source=__HAL_UART_GET_IT_SOURCE(&Uart1Handle, UART_IT_ERR);
-  if(__HAL_UART_GET_FLAG(&Uart1Handle, UART_FLAG_FE) != RESET)// frame error
+  source=__HAL_USART_GET_IT_SOURCE(&Uart1Handle, USART_IT_ERR);
+  if(__HAL_USART_GET_FLAG(&Uart1Handle, USART_FLAG_FE) != RESET)// frame error
   {
     if(source !=RESET)
     {
-      __HAL_UART_CLEAR_FEFLAG(&Uart1Handle);
+      __HAL_USART_CLEAR_FEFLAG(&Uart1Handle);
     }
   }
-  if(__HAL_UART_GET_FLAG(&Uart1Handle, UART_FLAG_NE) != RESET)// noise error
+  if(__HAL_USART_GET_FLAG(&Uart1Handle, USART_FLAG_NE) != RESET)// noise error
   {
     if(source !=RESET)
     {
-      __HAL_UART_CLEAR_NEFLAG(&Uart1Handle);
+      __HAL_USART_CLEAR_NEFLAG(&Uart1Handle);
     }
   }
-  if(__HAL_UART_GET_FLAG(&Uart1Handle, UART_FLAG_ORE) != RESET)// overrun error
+  if(__HAL_USART_GET_FLAG(&Uart1Handle, USART_FLAG_ORE) != RESET)// overrun error
   {
     if(source !=RESET)
     {
-      __HAL_UART_CLEAR_OREFLAG(&Uart1Handle);
+      __HAL_USART_CLEAR_OREFLAG(&Uart1Handle);
     }
   }
 }
@@ -168,7 +168,7 @@ void USART_DMA_RX_IRQHandler(void)
 }
 
 /* public functions*/
-void usart1_init(TComm *comm_dev,UART_InitTypeDef *conf,TUSART_IRQ_Priorities *priorities)
+void usart1_init(TComm *comm_dev,USART_InitTypeDef *conf,TUSART_IRQ_Priorities *priorities)
 {
   GPIO_InitTypeDef GPIO_InitStructure;
 
@@ -210,7 +210,7 @@ void usart1_init(TComm *comm_dev,UART_InitTypeDef *conf,TUSART_IRQ_Priorities *p
 
     HAL_DMA_Init(&usart1_hdma_tx);
 
-    /* Associate the initialized DMA handle to the UART handle */
+    /* Associate the initialized DMA handle to the USART handle */
     __HAL_LINKDMA(&Uart1Handle, hdmatx, usart1_hdma_tx);
 
     /* Configure the DMA handler for reception process */
@@ -225,7 +225,7 @@ void usart1_init(TComm *comm_dev,UART_InitTypeDef *conf,TUSART_IRQ_Priorities *p
 
     HAL_DMA_Init(&usart1_hdma_rx);
 
-    /* Associate the initialized DMA handle to the the UART handle */
+    /* Associate the initialized DMA handle to the the USART handle */
     __HAL_LINKDMA(&Uart1Handle, hdmarx, usart1_hdma_rx);
   }
   usart1_set_priorities(comm_dev,priorities);
@@ -250,16 +250,17 @@ void usart1_init(TComm *comm_dev,UART_InitTypeDef *conf,TUSART_IRQ_Priorities *p
   usart1_comm_dev=comm_dev;
 }
 
-void usart1_config(TComm *comm_dev,UART_InitTypeDef *conf)
+void usart1_config(TComm *comm_dev,USART_InitTypeDef *conf)
 {
   Uart1Handle.Init.BaudRate     = conf->BaudRate;
   Uart1Handle.Init.WordLength   = conf->WordLength;
   Uart1Handle.Init.StopBits     = conf->StopBits;
   Uart1Handle.Init.Parity       = conf->Parity;
   Uart1Handle.Init.Mode         = conf->Mode;
-  Uart1Handle.Init.HwFlowCtl    = conf->HwFlowCtl;
-  Uart1Handle.Init.OverSampling = conf->OverSampling;
-  HAL_UART_Init(&Uart1Handle);
+  Uart1Handle.Init.CLKPolarity  = conf->CLKPolarity;
+  Uart1Handle.Init.CLKPhase     = conf->CLKPhase;
+  Uart1Handle.Init.CLKLastBit   = conf->CLKLastBit;
+  HAL_USART_Init(&Uart1Handle);
 }
 
 void usart1_set_priorities(TComm *comm_dev,TUSART_IRQ_Priorities *priorities)
@@ -278,14 +279,14 @@ void usart1_set_priorities(TComm *comm_dev,TUSART_IRQ_Priorities *priorities)
 void usart1_set_baudrate(TComm *comm_dev,unsigned int baudrate)
 {
   Uart1Handle.Init.BaudRate = baudrate;
-  HAL_UART_Init(&Uart1Handle);
+  HAL_USART_Init(&Uart1Handle);
 }
 
 /* IRQ functions */
 unsigned char usart1_send_irq(unsigned char first_byte)
 {
-  __HAL_UART_CLEAR_FLAG(&Uart1Handle,UART_FLAG_TC);
-  __HAL_UART_ENABLE_IT(&Uart1Handle, UART_IT_TC);
+  __HAL_USART_CLEAR_FLAG(&Uart1Handle,USART_FLAG_TC);
+  __HAL_USART_ENABLE_IT(&Uart1Handle, USART_IT_TC);
   Uart1Handle.Instance->DR=first_byte;
 
   return 0x00;
@@ -293,8 +294,8 @@ unsigned char usart1_send_irq(unsigned char first_byte)
 
 unsigned char usart1_enable_tx_irq(void)
 {
-  __HAL_UART_CLEAR_FLAG(&Uart1Handle,UART_FLAG_TC);
-  __HAL_UART_ENABLE_IT(&Uart1Handle, UART_IT_TC);
+  __HAL_USART_CLEAR_FLAG(&Uart1Handle,USART_FLAG_TC);
+  __HAL_USART_ENABLE_IT(&Uart1Handle, USART_IT_TC);
 
   return 0x00;
 }
@@ -302,7 +303,7 @@ unsigned char usart1_enable_tx_irq(void)
 unsigned char usart1_receive_irq(void)
 {
   /* enable the rx interrupt */
-  __HAL_UART_ENABLE_IT(&Uart1Handle, UART_IT_RXNE);
+  __HAL_USART_ENABLE_IT(&Uart1Handle, USART_IT_RXNE);
 
   return 0x00;
 }
@@ -310,7 +311,7 @@ unsigned char usart1_receive_irq(void)
 unsigned char usart1_cancel_receive_irq(void)
 {
   /* disable the rx interrupt */
-  __HAL_UART_DISABLE_IT(&Uart1Handle, UART_IT_RXNE);
+  __HAL_USART_DISABLE_IT(&Uart1Handle, USART_IT_RXNE);
 
   return 0x00;
 }
@@ -320,9 +321,9 @@ unsigned char usart1_send_dma(unsigned char *data,unsigned short int length)
 {
   HAL_DMA_Start_IT(Uart1Handle.hdmatx,(uint32_t)data,(uint32_t)&Uart1Handle.Instance->DR,length);
   /* Clear the TC flag in the SR register by writing 0 to it */
-  __HAL_UART_CLEAR_FLAG(&Uart1Handle,UART_FLAG_TC);
+  __HAL_USART_CLEAR_FLAG(&Uart1Handle,USART_FLAG_TC);
   /* Enable the DMA transfer for transmit request by setting the DMAT bit
-     in the UART CR3 register */
+     in the USART CR3 register */
   SET_BIT(Uart1Handle.Instance->CR3, USART_CR3_DMAT);
 
   return 0x00;
diff --git a/f1/usart/src/usart2.c b/f1/usart/src/usart2.c
index 48066858e1c57ff47d055d899fc629d8c4569042..ac8b5325f626c6bd3c1de45e3ee0770cf4bc0a58 100644
--- a/f1/usart/src/usart2.c
+++ b/f1/usart/src/usart2.c
@@ -1,29 +1,29 @@
 #include "usart2.h"
 
-#define     USART                    USART2
-#define     USART_ENABLE_CLK         __HAL_RCC_USART2_CLK_ENABLE()
-#define     USART_IRQn               USART2_IRQn
-#define     USART_IRQHandler         USART2_IRQHandler
+#define     UART                    UART2
+#define     UART_ENABLE_CLK         __HAL_RCC_UART2_CLK_ENABLE()
+#define     UART_IRQn               UART2_IRQn
+#define     UART_IRQHandler         UART2_IRQHandler
 
-#define     USART_TX_PIN             GPIO_PIN_2                
-#define     USART_TX_GPIO_PORT       GPIOA
-#define     USART_ENABLE_TX_GPIO_CLK __HAL_RCC_GPIOA_CLK_ENABLE()
+#define     UART_TX_PIN             GPIO_PIN_2                
+#define     UART_TX_GPIO_PORT       GPIOA
+#define     UART_ENABLE_TX_GPIO_CLK __HAL_RCC_GPIOA_CLK_ENABLE()
 
-#define     USART_RX_PIN             GPIO_PIN_3
-#define     USART_RX_GPIO_PORT       GPIOA
-#define     USART_ENABLE_RX_GPIO_CLK __HAL_RCC_GPIOA_CLK_ENABLE()
+#define     UART_RX_PIN             GPIO_PIN_3
+#define     UART_RX_GPIO_PORT       GPIOA
+#define     UART_ENABLE_RX_GPIO_CLK __HAL_RCC_GPIOA_CLK_ENABLE()
 
 /* DMA configuration */
-#define     USART_DMA                DMA1
-#define     USART_ENABLE_DMA_CLK     __HAL_RCC_DMA1_CLK_ENABLE()
+#define     UART_DMA                DMA1
+#define     UART_ENABLE_DMA_CLK     __HAL_RCC_DMA1_CLK_ENABLE()
 
-#define     USART_TX_DMA_CHANNEL     DMA1_Channel7
-#define     USART_RX_DMA_CHANNEL     DMA1_Channel6
+#define     UART_TX_DMA_CHANNEL     DMA1_Channel7
+#define     UART_RX_DMA_CHANNEL     DMA1_Channel6
 
-#define     USART_DMA_TX_IRQn        DMA1_Channel7_IRQn
-#define     USART_DMA_RX_IRQn        DMA1_Channel6_IRQn
-#define     USART_DMA_TX_IRQHandler  DMA1_Channel7_IRQHandler
-#define     USART_DMA_RX_IRQHandler  DMA1_Channel6_IRQHandler
+#define     UART_DMA_TX_IRQn        DMA1_Channel7_IRQn
+#define     UART_DMA_RX_IRQn        DMA1_Channel6_IRQn
+#define     UART_DMA_TX_IRQHandler  DMA1_Channel7_IRQHandler
+#define     UART_DMA_RX_IRQHandler  DMA1_Channel6_IRQHandler
 
 // private variables
 UART_HandleTypeDef Uart2Handle;
@@ -32,7 +32,7 @@ DMA_HandleTypeDef usart2_hdma_rx;
 TComm *usart2_comm_dev;
 
 // interrupt handlers
-void USART_IRQHandler(void)
+void UART_IRQHandler(void)
 {
   unsigned char data,ret;
   uint32_t source;
@@ -91,7 +91,7 @@ void USART_IRQHandler(void)
   }
 }
 
-void USART_DMA_TX_IRQHandler(void)
+void UART_DMA_TX_IRQHandler(void)
 {
   if(__HAL_DMA_GET_FLAG(Uart2Handle.hdmatx,__HAL_DMA_GET_TE_FLAG_INDEX(Uart2Handle.hdmatx)) != RESET)
   {
@@ -111,7 +111,7 @@ void USART_DMA_TX_IRQHandler(void)
       __HAL_DMA_DISABLE_IT(Uart2Handle.hdmatx, DMA_IT_TC);
       /* Clear the transfer complete flag */
       __HAL_DMA_CLEAR_FLAG(Uart2Handle.hdmatx, __HAL_DMA_GET_TC_FLAG_INDEX(Uart2Handle.hdmatx));
-      CLEAR_BIT(Uart2Handle.Instance->CR3, (USART_CR3_DMAT | USART_CR3_DMAR));
+      CLEAR_BIT(Uart2Handle.Instance->CR3, (UART_CR3_DMAT | UART_CR3_DMAR));
       HAL_DMA_Abort(Uart2Handle.hdmatx);
       // call the user function
       comm_do_dma_send(usart2_comm_dev);
@@ -129,7 +129,7 @@ void USART_DMA_TX_IRQHandler(void)
   }
 }
 
-void USART_DMA_RX_IRQHandler(void)
+void UART_DMA_RX_IRQHandler(void)
 {
   if(__HAL_DMA_GET_FLAG(Uart2Handle.hdmarx,__HAL_DMA_GET_TE_FLAG_INDEX(Uart2Handle.hdmarx)) != RESET)
   {
@@ -149,7 +149,7 @@ void USART_DMA_RX_IRQHandler(void)
       __HAL_DMA_DISABLE_IT(Uart2Handle.hdmarx, DMA_IT_TC);
       /* Clear the transfer complete flag */
       __HAL_DMA_CLEAR_FLAG(Uart2Handle.hdmarx, __HAL_DMA_GET_TC_FLAG_INDEX(Uart2Handle.hdmarx));
-      CLEAR_BIT(Uart2Handle.Instance->CR3, (USART_CR3_DMAT | USART_CR3_DMAR));
+      CLEAR_BIT(Uart2Handle.Instance->CR3, (UART_CR3_DMAT | UART_CR3_DMAR));
       HAL_DMA_Abort(Uart2Handle.hdmarx);
       // call the user function
       comm_do_dma_receive(usart2_comm_dev);
@@ -168,36 +168,36 @@ void USART_DMA_RX_IRQHandler(void)
 }
 
 /* public functions*/
-void usart2_init(TComm *comm_dev,UART_InitTypeDef *conf,TUSART_IRQ_Priorities *priorities)
+void usart2_init(TComm *comm_dev,UART_InitTypeDef *conf,TUART_IRQ_Priorities *priorities)
 {
   GPIO_InitTypeDef GPIO_InitStructure;
 
   /* Enable GPIO clock */
-  USART_ENABLE_TX_GPIO_CLK;
-  USART_ENABLE_RX_GPIO_CLK;
-  USART_ENABLE_DMA_CLK;
+  UART_ENABLE_TX_GPIO_CLK;
+  UART_ENABLE_RX_GPIO_CLK;
+  UART_ENABLE_DMA_CLK;
   // configure the GPIO pins
 
-  /* Configure USART Tx and Rx as alternate function push-pull */
-  GPIO_InitStructure.Pin       = USART_TX_PIN;
+  /* Configure UART Tx and Rx as alternate function push-pull */
+  GPIO_InitStructure.Pin       = UART_TX_PIN;
   GPIO_InitStructure.Mode      = GPIO_MODE_AF_PP;
   GPIO_InitStructure.Pull      = GPIO_PULLUP;
   GPIO_InitStructure.Speed     = GPIO_SPEED_HIGH;
-  HAL_GPIO_Init(USART_TX_GPIO_PORT, &GPIO_InitStructure);
+  HAL_GPIO_Init(UART_TX_GPIO_PORT, &GPIO_InitStructure);
 
-  GPIO_InitStructure.Pin       = USART_RX_PIN;
+  GPIO_InitStructure.Pin       = UART_RX_PIN;
   GPIO_InitStructure.Mode      = GPIO_MODE_INPUT;
-  HAL_GPIO_Init(USART_RX_GPIO_PORT, &GPIO_InitStructure);
+  HAL_GPIO_Init(UART_RX_GPIO_PORT, &GPIO_InitStructure);
 
-  USART_ENABLE_CLK;
+  UART_ENABLE_CLK;
 
-  Uart2Handle.Instance          = USART;
+  Uart2Handle.Instance          = UART;
   usart2_config(comm_dev,conf);
 
   if(comm_dev->use_dma)
   {
     // configure the DMA channels
-    usart2_hdma_tx.Instance                 = USART_TX_DMA_CHANNEL;
+    usart2_hdma_tx.Instance                 = UART_TX_DMA_CHANNEL;
     usart2_hdma_tx.Init.Direction           = DMA_MEMORY_TO_PERIPH;
     usart2_hdma_tx.Init.PeriphInc           = DMA_PINC_DISABLE;
     usart2_hdma_tx.Init.MemInc              = DMA_MINC_ENABLE;
@@ -212,7 +212,7 @@ void usart2_init(TComm *comm_dev,UART_InitTypeDef *conf,TUSART_IRQ_Priorities *p
     __HAL_LINKDMA(&Uart2Handle, hdmatx, usart2_hdma_tx);
 
     /* Configure the DMA handler for reception process */
-    usart2_hdma_rx.Instance                 = USART_RX_DMA_CHANNEL;
+    usart2_hdma_rx.Instance                 = UART_RX_DMA_CHANNEL;
     usart2_hdma_rx.Init.Direction           = DMA_PERIPH_TO_MEMORY;
     usart2_hdma_rx.Init.PeriphInc           = DMA_PINC_DISABLE;
     usart2_hdma_rx.Init.MemInc              = DMA_MINC_ENABLE;
@@ -260,16 +260,16 @@ void usart2_config(TComm *comm_dev,UART_InitTypeDef *conf)
   HAL_UART_Init(&Uart2Handle);
 }
 
-void usart2_set_priorities(TComm *comm_dev,TUSART_IRQ_Priorities *priorities)
+void usart2_set_priorities(TComm *comm_dev,TUART_IRQ_Priorities *priorities)
 {
-  HAL_NVIC_SetPriority(USART_IRQn, priorities->irq_priority,priorities->irq_subpriority);
-  HAL_NVIC_EnableIRQ(USART_IRQn);
+  HAL_NVIC_SetPriority(UART_IRQn, priorities->irq_priority,priorities->irq_subpriority);
+  HAL_NVIC_EnableIRQ(UART_IRQn);
   if(comm_dev->use_dma)
   {
-    HAL_NVIC_SetPriority(USART_DMA_TX_IRQn, priorities->dma_tx_priority,priorities->dma_tx_subpriority);
-    HAL_NVIC_EnableIRQ(USART_DMA_TX_IRQn);
-    HAL_NVIC_SetPriority(USART_DMA_RX_IRQn, priorities->dma_rx_priority,priorities->dma_rx_subpriority);
-    HAL_NVIC_EnableIRQ(USART_DMA_RX_IRQn);
+    HAL_NVIC_SetPriority(UART_DMA_TX_IRQn, priorities->dma_tx_priority,priorities->dma_tx_subpriority);
+    HAL_NVIC_EnableIRQ(UART_DMA_TX_IRQn);
+    HAL_NVIC_SetPriority(UART_DMA_RX_IRQn, priorities->dma_rx_priority,priorities->dma_rx_subpriority);
+    HAL_NVIC_EnableIRQ(UART_DMA_RX_IRQn);
   }
 }
 
@@ -321,7 +321,7 @@ unsigned char usart2_send_dma(unsigned char *data,unsigned short int length)
   __HAL_UART_CLEAR_FLAG(&Uart2Handle,UART_FLAG_TC);
   /* Enable the DMA transfer for transmit request by setting the DMAT bit
      in the UART CR3 register */
-  SET_BIT(Uart2Handle.Instance->CR3, USART_CR3_DMAT);
+  SET_BIT(Uart2Handle.Instance->CR3, UART_CR3_DMAT);
 
   return 0x00;
 }
@@ -329,14 +329,14 @@ unsigned char usart2_send_dma(unsigned char *data,unsigned short int length)
 unsigned char usart2_receive_dma(unsigned char *data,unsigned short int length)
 {
   HAL_DMA_Start_IT(Uart2Handle.hdmarx,(uint32_t)&Uart2Handle.Instance->DR,(uint32_t)data,length);
-  SET_BIT(Uart2Handle.Instance->CR3, USART_CR3_DMAR);
+  SET_BIT(Uart2Handle.Instance->CR3, UART_CR3_DMAR);
 
   return 0x00;
 }
 
 unsigned char usart2_cancel_receive_dma(void)
 {
-  CLEAR_BIT(Uart2Handle.Instance->CR3, (USART_CR3_DMAT | USART_CR3_DMAR));
+  CLEAR_BIT(Uart2Handle.Instance->CR3, (UART_CR3_DMAT | UART_CR3_DMAR));
   HAL_DMA_Abort(Uart2Handle.hdmarx);
 
   return 0x00;