413 lines
17 KiB
C
413 lines
17 KiB
C
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/**
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******************************************************************************
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* @file stm32f4xx_usart.h
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* @author MCD Application Team
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* @version V1.0.0RC1
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* @date 25-August-2011
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* @brief This file contains all the functions prototypes for the USART
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* firmware library.
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******************************************************************************
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* @attention
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*
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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*
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* <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef __STM32F4xx_USART_H
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#define __STM32F4xx_USART_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f4xx.h"
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/** @addtogroup STM32F4xx_StdPeriph_Driver
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* @{
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*/
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/** @addtogroup USART
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* @{
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*/
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/* Exported types ------------------------------------------------------------*/
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/**
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* @brief USART Init Structure definition
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*/
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typedef struct
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{
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uint32_t USART_BaudRate; /*!< This member configures the USART communication baud rate.
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The baud rate is computed using the following formula:
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- IntegerDivider = ((PCLKx) / (8 * (OVR8+1) * (USART_InitStruct->USART_BaudRate)))
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- FractionalDivider = ((IntegerDivider - ((u32) IntegerDivider)) * 8 * (OVR8+1)) + 0.5
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Where OVR8 is the "oversampling by 8 mode" configuration bit in the CR1 register. */
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uint16_t USART_WordLength; /*!< Specifies the number of data bits transmitted or received in a frame.
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This parameter can be a value of @ref USART_Word_Length */
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uint16_t USART_StopBits; /*!< Specifies the number of stop bits transmitted.
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This parameter can be a value of @ref USART_Stop_Bits */
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uint16_t USART_Parity; /*!< Specifies the parity mode.
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This parameter can be a value of @ref USART_Parity
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@note When parity is enabled, the computed parity is inserted
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at the MSB position of the transmitted data (9th bit when
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the word length is set to 9 data bits; 8th bit when the
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word length is set to 8 data bits). */
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uint16_t USART_Mode; /*!< Specifies wether the Receive or Transmit mode is enabled or disabled.
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This parameter can be a value of @ref USART_Mode */
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uint16_t USART_HardwareFlowControl; /*!< Specifies wether the hardware flow control mode is enabled
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or disabled.
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This parameter can be a value of @ref USART_Hardware_Flow_Control */
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} USART_InitTypeDef;
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/**
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* @brief USART Clock Init Structure definition
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*/
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typedef struct
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{
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uint16_t USART_Clock; /*!< Specifies whether the USART clock is enabled or disabled.
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This parameter can be a value of @ref USART_Clock */
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uint16_t USART_CPOL; /*!< Specifies the steady state of the serial clock.
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This parameter can be a value of @ref USART_Clock_Polarity */
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uint16_t USART_CPHA; /*!< Specifies the clock transition on which the bit capture is made.
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This parameter can be a value of @ref USART_Clock_Phase */
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uint16_t USART_LastBit; /*!< Specifies whether the clock pulse corresponding to the last transmitted
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data bit (MSB) has to be output on the SCLK pin in synchronous mode.
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This parameter can be a value of @ref USART_Last_Bit */
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} USART_ClockInitTypeDef;
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/* Exported constants --------------------------------------------------------*/
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/** @defgroup USART_Exported_Constants
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* @{
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*/
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#define IS_USART_ALL_PERIPH(PERIPH) (((PERIPH) == USART1) || \
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((PERIPH) == USART2) || \
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((PERIPH) == USART3) || \
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((PERIPH) == UART4) || \
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((PERIPH) == UART5) || \
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((PERIPH) == USART6))
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#define IS_USART_1236_PERIPH(PERIPH) (((PERIPH) == USART1) || \
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((PERIPH) == USART2) || \
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((PERIPH) == USART3) || \
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((PERIPH) == USART6))
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/** @defgroup USART_Word_Length
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* @{
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*/
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#define USART_WordLength_8b ((uint16_t)0x0000)
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#define USART_WordLength_9b ((uint16_t)0x1000)
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#define IS_USART_WORD_LENGTH(LENGTH) (((LENGTH) == USART_WordLength_8b) || \
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((LENGTH) == USART_WordLength_9b))
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/**
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* @}
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*/
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/** @defgroup USART_Stop_Bits
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* @{
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*/
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#define USART_StopBits_1 ((uint16_t)0x0000)
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#define USART_StopBits_0_5 ((uint16_t)0x1000)
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#define USART_StopBits_2 ((uint16_t)0x2000)
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#define USART_StopBits_1_5 ((uint16_t)0x3000)
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#define IS_USART_STOPBITS(STOPBITS) (((STOPBITS) == USART_StopBits_1) || \
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((STOPBITS) == USART_StopBits_0_5) || \
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((STOPBITS) == USART_StopBits_2) || \
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((STOPBITS) == USART_StopBits_1_5))
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/**
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* @}
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*/
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/** @defgroup USART_Parity
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* @{
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*/
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#define USART_Parity_No ((uint16_t)0x0000)
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#define USART_Parity_Even ((uint16_t)0x0400)
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#define USART_Parity_Odd ((uint16_t)0x0600)
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#define IS_USART_PARITY(PARITY) (((PARITY) == USART_Parity_No) || \
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((PARITY) == USART_Parity_Even) || \
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((PARITY) == USART_Parity_Odd))
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/**
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* @}
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*/
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/** @defgroup USART_Mode
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* @{
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*/
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#define USART_Mode_Rx ((uint16_t)0x0004)
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#define USART_Mode_Tx ((uint16_t)0x0008)
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#define IS_USART_MODE(MODE) ((((MODE) & (uint16_t)0xFFF3) == 0x00) && ((MODE) != (uint16_t)0x00))
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/**
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* @}
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*/
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/** @defgroup USART_Hardware_Flow_Control
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* @{
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*/
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#define USART_HardwareFlowControl_None ((uint16_t)0x0000)
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#define USART_HardwareFlowControl_RTS ((uint16_t)0x0100)
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#define USART_HardwareFlowControl_CTS ((uint16_t)0x0200)
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#define USART_HardwareFlowControl_RTS_CTS ((uint16_t)0x0300)
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#define IS_USART_HARDWARE_FLOW_CONTROL(CONTROL)\
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(((CONTROL) == USART_HardwareFlowControl_None) || \
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((CONTROL) == USART_HardwareFlowControl_RTS) || \
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((CONTROL) == USART_HardwareFlowControl_CTS) || \
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((CONTROL) == USART_HardwareFlowControl_RTS_CTS))
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/**
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* @}
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*/
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/** @defgroup USART_Clock
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* @{
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*/
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#define USART_Clock_Disable ((uint16_t)0x0000)
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#define USART_Clock_Enable ((uint16_t)0x0800)
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#define IS_USART_CLOCK(CLOCK) (((CLOCK) == USART_Clock_Disable) || \
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((CLOCK) == USART_Clock_Enable))
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/**
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* @}
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*/
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/** @defgroup USART_Clock_Polarity
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* @{
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*/
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#define USART_CPOL_Low ((uint16_t)0x0000)
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#define USART_CPOL_High ((uint16_t)0x0400)
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#define IS_USART_CPOL(CPOL) (((CPOL) == USART_CPOL_Low) || ((CPOL) == USART_CPOL_High))
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/**
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* @}
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*/
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/** @defgroup USART_Clock_Phase
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* @{
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*/
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#define USART_CPHA_1Edge ((uint16_t)0x0000)
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#define USART_CPHA_2Edge ((uint16_t)0x0200)
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#define IS_USART_CPHA(CPHA) (((CPHA) == USART_CPHA_1Edge) || ((CPHA) == USART_CPHA_2Edge))
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/**
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* @}
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*/
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/** @defgroup USART_Last_Bit
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* @{
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*/
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#define USART_LastBit_Disable ((uint16_t)0x0000)
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#define USART_LastBit_Enable ((uint16_t)0x0100)
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#define IS_USART_LASTBIT(LASTBIT) (((LASTBIT) == USART_LastBit_Disable) || \
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((LASTBIT) == USART_LastBit_Enable))
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/**
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* @}
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*/
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/** @defgroup USART_Interrupt_definition
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* @{
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*/
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#define USART_IT_PE ((uint16_t)0x0028)
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#define USART_IT_TXE ((uint16_t)0x0727)
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#define USART_IT_TC ((uint16_t)0x0626)
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#define USART_IT_RXNE ((uint16_t)0x0525)
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#define USART_IT_IDLE ((uint16_t)0x0424)
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#define USART_IT_LBD ((uint16_t)0x0846)
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#define USART_IT_CTS ((uint16_t)0x096A)
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#define USART_IT_ERR ((uint16_t)0x0060)
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#define USART_IT_ORE ((uint16_t)0x0360)
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#define USART_IT_NE ((uint16_t)0x0260)
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#define USART_IT_FE ((uint16_t)0x0160)
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#define IS_USART_CONFIG_IT(IT) (((IT) == USART_IT_PE) || ((IT) == USART_IT_TXE) || \
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((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \
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((IT) == USART_IT_IDLE) || ((IT) == USART_IT_LBD) || \
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((IT) == USART_IT_CTS) || ((IT) == USART_IT_ERR))
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#define IS_USART_GET_IT(IT) (((IT) == USART_IT_PE) || ((IT) == USART_IT_TXE) || \
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((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \
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((IT) == USART_IT_IDLE) || ((IT) == USART_IT_LBD) || \
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((IT) == USART_IT_CTS) || ((IT) == USART_IT_ORE) || \
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((IT) == USART_IT_NE) || ((IT) == USART_IT_FE))
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#define IS_USART_CLEAR_IT(IT) (((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \
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((IT) == USART_IT_LBD) || ((IT) == USART_IT_CTS))
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/**
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* @}
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*/
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/** @defgroup USART_DMA_Requests
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* @{
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*/
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#define USART_DMAReq_Tx ((uint16_t)0x0080)
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#define USART_DMAReq_Rx ((uint16_t)0x0040)
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#define IS_USART_DMAREQ(DMAREQ) ((((DMAREQ) & (uint16_t)0xFF3F) == 0x00) && ((DMAREQ) != (uint16_t)0x00))
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/**
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* @}
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*/
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/** @defgroup USART_WakeUp_methods
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* @{
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*/
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#define USART_WakeUp_IdleLine ((uint16_t)0x0000)
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#define USART_WakeUp_AddressMark ((uint16_t)0x0800)
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#define IS_USART_WAKEUP(WAKEUP) (((WAKEUP) == USART_WakeUp_IdleLine) || \
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((WAKEUP) == USART_WakeUp_AddressMark))
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/**
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* @}
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*/
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/** @defgroup USART_LIN_Break_Detection_Length
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* @{
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*/
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#define USART_LINBreakDetectLength_10b ((uint16_t)0x0000)
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#define USART_LINBreakDetectLength_11b ((uint16_t)0x0020)
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#define IS_USART_LIN_BREAK_DETECT_LENGTH(LENGTH) \
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(((LENGTH) == USART_LINBreakDetectLength_10b) || \
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((LENGTH) == USART_LINBreakDetectLength_11b))
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/**
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* @}
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*/
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/** @defgroup USART_IrDA_Low_Power
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* @{
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*/
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#define USART_IrDAMode_LowPower ((uint16_t)0x0004)
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#define USART_IrDAMode_Normal ((uint16_t)0x0000)
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#define IS_USART_IRDA_MODE(MODE) (((MODE) == USART_IrDAMode_LowPower) || \
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((MODE) == USART_IrDAMode_Normal))
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/**
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* @}
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*/
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/** @defgroup USART_Flags
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* @{
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*/
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#define USART_FLAG_CTS ((uint16_t)0x0200)
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#define USART_FLAG_LBD ((uint16_t)0x0100)
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#define USART_FLAG_TXE ((uint16_t)0x0080)
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#define USART_FLAG_TC ((uint16_t)0x0040)
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#define USART_FLAG_RXNE ((uint16_t)0x0020)
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#define USART_FLAG_IDLE ((uint16_t)0x0010)
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#define USART_FLAG_ORE ((uint16_t)0x0008)
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#define USART_FLAG_NE ((uint16_t)0x0004)
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#define USART_FLAG_FE ((uint16_t)0x0002)
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#define USART_FLAG_PE ((uint16_t)0x0001)
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#define IS_USART_FLAG(FLAG) (((FLAG) == USART_FLAG_PE) || ((FLAG) == USART_FLAG_TXE) || \
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((FLAG) == USART_FLAG_TC) || ((FLAG) == USART_FLAG_RXNE) || \
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((FLAG) == USART_FLAG_IDLE) || ((FLAG) == USART_FLAG_LBD) || \
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((FLAG) == USART_FLAG_CTS) || ((FLAG) == USART_FLAG_ORE) || \
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((FLAG) == USART_FLAG_NE) || ((FLAG) == USART_FLAG_FE))
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#define IS_USART_CLEAR_FLAG(FLAG) ((((FLAG) & (uint16_t)0xFC9F) == 0x00) && ((FLAG) != (uint16_t)0x00))
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#define IS_USART_BAUDRATE(BAUDRATE) (((BAUDRATE) > 0) && ((BAUDRATE) < 7500001))
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#define IS_USART_ADDRESS(ADDRESS) ((ADDRESS) <= 0xF)
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#define IS_USART_DATA(DATA) ((DATA) <= 0x1FF)
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/**
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* @}
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*/
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/**
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* @}
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*/
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/* Exported macro ------------------------------------------------------------*/
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/* Exported functions --------------------------------------------------------*/
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/* Function used to set the USART configuration to the default reset state ***/
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void USART_DeInit(USART_TypeDef* USARTx);
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/* Initialization and Configuration functions *********************************/
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void USART_Init(USART_TypeDef* USARTx, USART_InitTypeDef* USART_InitStruct);
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void USART_StructInit(USART_InitTypeDef* USART_InitStruct);
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void USART_ClockInit(USART_TypeDef* USARTx, USART_ClockInitTypeDef* USART_ClockInitStruct);
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void USART_ClockStructInit(USART_ClockInitTypeDef* USART_ClockInitStruct);
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void USART_Cmd(USART_TypeDef* USARTx, FunctionalState NewState);
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void USART_SetPrescaler(USART_TypeDef* USARTx, uint8_t USART_Prescaler);
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void USART_OverSampling8Cmd(USART_TypeDef* USARTx, FunctionalState NewState);
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void USART_OneBitMethodCmd(USART_TypeDef* USARTx, FunctionalState NewState);
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/* Data transfers functions ***************************************************/
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void USART_SendData(USART_TypeDef* USARTx, uint16_t Data);
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uint16_t USART_ReceiveData(USART_TypeDef* USARTx);
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/* Multi-Processor Communication functions ************************************/
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void USART_SetAddress(USART_TypeDef* USARTx, uint8_t USART_Address);
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void USART_WakeUpConfig(USART_TypeDef* USARTx, uint16_t USART_WakeUp);
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void USART_ReceiverWakeUpCmd(USART_TypeDef* USARTx, FunctionalState NewState);
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/* LIN mode functions *********************************************************/
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void USART_LINBreakDetectLengthConfig(USART_TypeDef* USARTx, uint16_t USART_LINBreakDetectLength);
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void USART_LINCmd(USART_TypeDef* USARTx, FunctionalState NewState);
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void USART_SendBreak(USART_TypeDef* USARTx);
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/* Half-duplex mode function **************************************************/
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void USART_HalfDuplexCmd(USART_TypeDef* USARTx, FunctionalState NewState);
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/* Smartcard mode functions ***************************************************/
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void USART_SmartCardCmd(USART_TypeDef* USARTx, FunctionalState NewState);
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void USART_SmartCardNACKCmd(USART_TypeDef* USARTx, FunctionalState NewState);
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void USART_SetGuardTime(USART_TypeDef* USARTx, uint8_t USART_GuardTime);
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/* IrDA mode functions ********************************************************/
|
||
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void USART_IrDAConfig(USART_TypeDef* USARTx, uint16_t USART_IrDAMode);
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||
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void USART_IrDACmd(USART_TypeDef* USARTx, FunctionalState NewState);
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/* DMA transfers management functions *****************************************/
|
||
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void USART_DMACmd(USART_TypeDef* USARTx, uint16_t USART_DMAReq, FunctionalState NewState);
|
||
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/* Interrupts and flags management functions **********************************/
|
||
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void USART_ITConfig(USART_TypeDef* USARTx, uint16_t USART_IT, FunctionalState NewState);
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||
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FlagStatus USART_GetFlagStatus(USART_TypeDef* USARTx, uint16_t USART_FLAG);
|
||
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void USART_ClearFlag(USART_TypeDef* USARTx, uint16_t USART_FLAG);
|
||
|
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ITStatus USART_GetITStatus(USART_TypeDef* USARTx, uint16_t USART_IT);
|
||
|
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void USART_ClearITPendingBit(USART_TypeDef* USARTx, uint16_t USART_IT);
|
||
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|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __STM32F4xx_USART_H */
|
||
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|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
*/
|
||
|
|
|
||
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/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
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