2 ******************************************************************************
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3 * @file stm32f10x_usart.h
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4 * @author MCD Application Team
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6 * @date 11-March-2011
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7 * @brief This file contains all the functions prototypes for the USART
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9 ******************************************************************************
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12 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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13 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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14 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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15 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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16 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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17 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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19 * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
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20 ******************************************************************************
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23 /* Define to prevent recursive inclusion -------------------------------------*/
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24 #ifndef __STM32F10x_USART_H
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25 #define __STM32F10x_USART_H
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31 /* Includes ------------------------------------------------------------------*/
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32 #include "stm32f10x.h"
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34 /** @addtogroup STM32F10x_StdPeriph_Driver
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38 /** @addtogroup USART
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42 /** @defgroup USART_Exported_Types
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47 * @brief USART Init Structure definition
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52 uint32_t USART_BaudRate; /*!< This member configures the USART communication baud rate.
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53 The baud rate is computed using the following formula:
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54 - IntegerDivider = ((PCLKx) / (16 * (USART_InitStruct->USART_BaudRate)))
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55 - FractionalDivider = ((IntegerDivider - ((u32) IntegerDivider)) * 16) + 0.5 */
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57 uint16_t USART_WordLength; /*!< Specifies the number of data bits transmitted or received in a frame.
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58 This parameter can be a value of @ref USART_Word_Length */
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60 uint16_t USART_StopBits; /*!< Specifies the number of stop bits transmitted.
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61 This parameter can be a value of @ref USART_Stop_Bits */
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63 uint16_t USART_Parity; /*!< Specifies the parity mode.
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64 This parameter can be a value of @ref USART_Parity
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65 @note When parity is enabled, the computed parity is inserted
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66 at the MSB position of the transmitted data (9th bit when
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67 the word length is set to 9 data bits; 8th bit when the
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68 word length is set to 8 data bits). */
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70 uint16_t USART_Mode; /*!< Specifies wether the Receive or Transmit mode is enabled or disabled.
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71 This parameter can be a value of @ref USART_Mode */
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73 uint16_t USART_HardwareFlowControl; /*!< Specifies wether the hardware flow control mode is enabled
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75 This parameter can be a value of @ref USART_Hardware_Flow_Control */
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76 } USART_InitTypeDef;
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79 * @brief USART Clock Init Structure definition
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85 uint16_t USART_Clock; /*!< Specifies whether the USART clock is enabled or disabled.
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86 This parameter can be a value of @ref USART_Clock */
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88 uint16_t USART_CPOL; /*!< Specifies the steady state value of the serial clock.
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89 This parameter can be a value of @ref USART_Clock_Polarity */
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91 uint16_t USART_CPHA; /*!< Specifies the clock transition on which the bit capture is made.
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92 This parameter can be a value of @ref USART_Clock_Phase */
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94 uint16_t USART_LastBit; /*!< Specifies whether the clock pulse corresponding to the last transmitted
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95 data bit (MSB) has to be output on the SCLK pin in synchronous mode.
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96 This parameter can be a value of @ref USART_Last_Bit */
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97 } USART_ClockInitTypeDef;
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103 /** @defgroup USART_Exported_Constants
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107 #define IS_USART_ALL_PERIPH(PERIPH) (((PERIPH) == USART1) || \
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108 ((PERIPH) == USART2) || \
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109 ((PERIPH) == USART3) || \
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110 ((PERIPH) == UART4) || \
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111 ((PERIPH) == UART5))
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113 #define IS_USART_123_PERIPH(PERIPH) (((PERIPH) == USART1) || \
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114 ((PERIPH) == USART2) || \
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115 ((PERIPH) == USART3))
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117 #define IS_USART_1234_PERIPH(PERIPH) (((PERIPH) == USART1) || \
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118 ((PERIPH) == USART2) || \
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119 ((PERIPH) == USART3) || \
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120 ((PERIPH) == UART4))
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121 /** @defgroup USART_Word_Length
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125 #define USART_WordLength_8b ((uint16_t)0x0000)
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126 #define USART_WordLength_9b ((uint16_t)0x1000)
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128 #define IS_USART_WORD_LENGTH(LENGTH) (((LENGTH) == USART_WordLength_8b) || \
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129 ((LENGTH) == USART_WordLength_9b))
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134 /** @defgroup USART_Stop_Bits
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138 #define USART_StopBits_1 ((uint16_t)0x0000)
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139 #define USART_StopBits_0_5 ((uint16_t)0x1000)
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140 #define USART_StopBits_2 ((uint16_t)0x2000)
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141 #define USART_StopBits_1_5 ((uint16_t)0x3000)
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142 #define IS_USART_STOPBITS(STOPBITS) (((STOPBITS) == USART_StopBits_1) || \
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143 ((STOPBITS) == USART_StopBits_0_5) || \
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144 ((STOPBITS) == USART_StopBits_2) || \
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145 ((STOPBITS) == USART_StopBits_1_5))
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150 /** @defgroup USART_Parity
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154 #define USART_Parity_No ((uint16_t)0x0000)
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155 #define USART_Parity_Even ((uint16_t)0x0400)
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156 #define USART_Parity_Odd ((uint16_t)0x0600)
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157 #define IS_USART_PARITY(PARITY) (((PARITY) == USART_Parity_No) || \
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158 ((PARITY) == USART_Parity_Even) || \
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159 ((PARITY) == USART_Parity_Odd))
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164 /** @defgroup USART_Mode
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168 #define USART_Mode_Rx ((uint16_t)0x0004)
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169 #define USART_Mode_Tx ((uint16_t)0x0008)
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170 #define IS_USART_MODE(MODE) ((((MODE) & (uint16_t)0xFFF3) == 0x00) && ((MODE) != (uint16_t)0x00))
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175 /** @defgroup USART_Hardware_Flow_Control
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178 #define USART_HardwareFlowControl_None ((uint16_t)0x0000)
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179 #define USART_HardwareFlowControl_RTS ((uint16_t)0x0100)
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180 #define USART_HardwareFlowControl_CTS ((uint16_t)0x0200)
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181 #define USART_HardwareFlowControl_RTS_CTS ((uint16_t)0x0300)
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182 #define IS_USART_HARDWARE_FLOW_CONTROL(CONTROL)\
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183 (((CONTROL) == USART_HardwareFlowControl_None) || \
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184 ((CONTROL) == USART_HardwareFlowControl_RTS) || \
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185 ((CONTROL) == USART_HardwareFlowControl_CTS) || \
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186 ((CONTROL) == USART_HardwareFlowControl_RTS_CTS))
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191 /** @defgroup USART_Clock
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194 #define USART_Clock_Disable ((uint16_t)0x0000)
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195 #define USART_Clock_Enable ((uint16_t)0x0800)
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196 #define IS_USART_CLOCK(CLOCK) (((CLOCK) == USART_Clock_Disable) || \
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197 ((CLOCK) == USART_Clock_Enable))
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202 /** @defgroup USART_Clock_Polarity
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206 #define USART_CPOL_Low ((uint16_t)0x0000)
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207 #define USART_CPOL_High ((uint16_t)0x0400)
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208 #define IS_USART_CPOL(CPOL) (((CPOL) == USART_CPOL_Low) || ((CPOL) == USART_CPOL_High))
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214 /** @defgroup USART_Clock_Phase
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218 #define USART_CPHA_1Edge ((uint16_t)0x0000)
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219 #define USART_CPHA_2Edge ((uint16_t)0x0200)
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220 #define IS_USART_CPHA(CPHA) (((CPHA) == USART_CPHA_1Edge) || ((CPHA) == USART_CPHA_2Edge))
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226 /** @defgroup USART_Last_Bit
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230 #define USART_LastBit_Disable ((uint16_t)0x0000)
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231 #define USART_LastBit_Enable ((uint16_t)0x0100)
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232 #define IS_USART_LASTBIT(LASTBIT) (((LASTBIT) == USART_LastBit_Disable) || \
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233 ((LASTBIT) == USART_LastBit_Enable))
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238 /** @defgroup USART_Interrupt_definition
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242 #define USART_IT_PE ((uint16_t)0x0028)
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243 #define USART_IT_TXE ((uint16_t)0x0727)
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244 #define USART_IT_TC ((uint16_t)0x0626)
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245 #define USART_IT_RXNE ((uint16_t)0x0525)
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246 #define USART_IT_IDLE ((uint16_t)0x0424)
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247 #define USART_IT_LBD ((uint16_t)0x0846)
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248 #define USART_IT_CTS ((uint16_t)0x096A)
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249 #define USART_IT_ERR ((uint16_t)0x0060)
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250 #define USART_IT_ORE ((uint16_t)0x0360)
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251 #define USART_IT_NE ((uint16_t)0x0260)
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252 #define USART_IT_FE ((uint16_t)0x0160)
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253 #define IS_USART_CONFIG_IT(IT) (((IT) == USART_IT_PE) || ((IT) == USART_IT_TXE) || \
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254 ((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \
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255 ((IT) == USART_IT_IDLE) || ((IT) == USART_IT_LBD) || \
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256 ((IT) == USART_IT_CTS) || ((IT) == USART_IT_ERR))
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257 #define IS_USART_GET_IT(IT) (((IT) == USART_IT_PE) || ((IT) == USART_IT_TXE) || \
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258 ((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \
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259 ((IT) == USART_IT_IDLE) || ((IT) == USART_IT_LBD) || \
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260 ((IT) == USART_IT_CTS) || ((IT) == USART_IT_ORE) || \
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261 ((IT) == USART_IT_NE) || ((IT) == USART_IT_FE))
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262 #define IS_USART_CLEAR_IT(IT) (((IT) == USART_IT_TC) || ((IT) == USART_IT_RXNE) || \
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263 ((IT) == USART_IT_LBD) || ((IT) == USART_IT_CTS))
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268 /** @defgroup USART_DMA_Requests
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272 #define USART_DMAReq_Tx ((uint16_t)0x0080)
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273 #define USART_DMAReq_Rx ((uint16_t)0x0040)
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274 #define IS_USART_DMAREQ(DMAREQ) ((((DMAREQ) & (uint16_t)0xFF3F) == 0x00) && ((DMAREQ) != (uint16_t)0x00))
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280 /** @defgroup USART_WakeUp_methods
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284 #define USART_WakeUp_IdleLine ((uint16_t)0x0000)
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285 #define USART_WakeUp_AddressMark ((uint16_t)0x0800)
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286 #define IS_USART_WAKEUP(WAKEUP) (((WAKEUP) == USART_WakeUp_IdleLine) || \
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287 ((WAKEUP) == USART_WakeUp_AddressMark))
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292 /** @defgroup USART_LIN_Break_Detection_Length
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296 #define USART_LINBreakDetectLength_10b ((uint16_t)0x0000)
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297 #define USART_LINBreakDetectLength_11b ((uint16_t)0x0020)
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298 #define IS_USART_LIN_BREAK_DETECT_LENGTH(LENGTH) \
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299 (((LENGTH) == USART_LINBreakDetectLength_10b) || \
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300 ((LENGTH) == USART_LINBreakDetectLength_11b))
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305 /** @defgroup USART_IrDA_Low_Power
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309 #define USART_IrDAMode_LowPower ((uint16_t)0x0004)
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310 #define USART_IrDAMode_Normal ((uint16_t)0x0000)
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311 #define IS_USART_IRDA_MODE(MODE) (((MODE) == USART_IrDAMode_LowPower) || \
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312 ((MODE) == USART_IrDAMode_Normal))
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317 /** @defgroup USART_Flags
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321 #define USART_FLAG_CTS ((uint16_t)0x0200)
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322 #define USART_FLAG_LBD ((uint16_t)0x0100)
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323 #define USART_FLAG_TXE ((uint16_t)0x0080)
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324 #define USART_FLAG_TC ((uint16_t)0x0040)
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325 #define USART_FLAG_RXNE ((uint16_t)0x0020)
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326 #define USART_FLAG_IDLE ((uint16_t)0x0010)
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327 #define USART_FLAG_ORE ((uint16_t)0x0008)
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328 #define USART_FLAG_NE ((uint16_t)0x0004)
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329 #define USART_FLAG_FE ((uint16_t)0x0002)
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330 #define USART_FLAG_PE ((uint16_t)0x0001)
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331 #define IS_USART_FLAG(FLAG) (((FLAG) == USART_FLAG_PE) || ((FLAG) == USART_FLAG_TXE) || \
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332 ((FLAG) == USART_FLAG_TC) || ((FLAG) == USART_FLAG_RXNE) || \
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333 ((FLAG) == USART_FLAG_IDLE) || ((FLAG) == USART_FLAG_LBD) || \
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334 ((FLAG) == USART_FLAG_CTS) || ((FLAG) == USART_FLAG_ORE) || \
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335 ((FLAG) == USART_FLAG_NE) || ((FLAG) == USART_FLAG_FE))
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337 #define IS_USART_CLEAR_FLAG(FLAG) ((((FLAG) & (uint16_t)0xFC9F) == 0x00) && ((FLAG) != (uint16_t)0x00))
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338 #define IS_USART_PERIPH_FLAG(PERIPH, USART_FLAG) ((((*(uint32_t*)&(PERIPH)) != UART4_BASE) &&\
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339 ((*(uint32_t*)&(PERIPH)) != UART5_BASE)) \
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340 || ((USART_FLAG) != USART_FLAG_CTS))
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341 #define IS_USART_BAUDRATE(BAUDRATE) (((BAUDRATE) > 0) && ((BAUDRATE) < 0x0044AA21))
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342 #define IS_USART_ADDRESS(ADDRESS) ((ADDRESS) <= 0xF)
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343 #define IS_USART_DATA(DATA) ((DATA) <= 0x1FF)
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353 /** @defgroup USART_Exported_Macros
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361 /** @defgroup USART_Exported_Functions
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365 void USART_DeInit(USART_TypeDef* USARTx);
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366 void USART_Init(USART_TypeDef* USARTx, USART_InitTypeDef* USART_InitStruct);
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367 void USART_StructInit(USART_InitTypeDef* USART_InitStruct);
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368 void USART_ClockInit(USART_TypeDef* USARTx, USART_ClockInitTypeDef* USART_ClockInitStruct);
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369 void USART_ClockStructInit(USART_ClockInitTypeDef* USART_ClockInitStruct);
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370 void USART_Cmd(USART_TypeDef* USARTx, FunctionalState NewState);
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371 void USART_ITConfig(USART_TypeDef* USARTx, uint16_t USART_IT, FunctionalState NewState);
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372 void USART_DMACmd(USART_TypeDef* USARTx, uint16_t USART_DMAReq, FunctionalState NewState);
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373 void USART_SetAddress(USART_TypeDef* USARTx, uint8_t USART_Address);
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374 void USART_WakeUpConfig(USART_TypeDef* USARTx, uint16_t USART_WakeUp);
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375 void USART_ReceiverWakeUpCmd(USART_TypeDef* USARTx, FunctionalState NewState);
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376 void USART_LINBreakDetectLengthConfig(USART_TypeDef* USARTx, uint16_t USART_LINBreakDetectLength);
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377 void USART_LINCmd(USART_TypeDef* USARTx, FunctionalState NewState);
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378 void USART_SendData(USART_TypeDef* USARTx, uint16_t Data);
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379 uint16_t USART_ReceiveData(USART_TypeDef* USARTx);
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380 void USART_SendBreak(USART_TypeDef* USARTx);
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381 void USART_SetGuardTime(USART_TypeDef* USARTx, uint8_t USART_GuardTime);
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382 void USART_SetPrescaler(USART_TypeDef* USARTx, uint8_t USART_Prescaler);
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383 void USART_SmartCardCmd(USART_TypeDef* USARTx, FunctionalState NewState);
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384 void USART_SmartCardNACKCmd(USART_TypeDef* USARTx, FunctionalState NewState);
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385 void USART_HalfDuplexCmd(USART_TypeDef* USARTx, FunctionalState NewState);
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386 void USART_OverSampling8Cmd(USART_TypeDef* USARTx, FunctionalState NewState);
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387 void USART_OneBitMethodCmd(USART_TypeDef* USARTx, FunctionalState NewState);
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388 void USART_IrDAConfig(USART_TypeDef* USARTx, uint16_t USART_IrDAMode);
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389 void USART_IrDACmd(USART_TypeDef* USARTx, FunctionalState NewState);
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390 FlagStatus USART_GetFlagStatus(USART_TypeDef* USARTx, uint16_t USART_FLAG);
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391 void USART_ClearFlag(USART_TypeDef* USARTx, uint16_t USART_FLAG);
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392 ITStatus USART_GetITStatus(USART_TypeDef* USARTx, uint16_t USART_IT);
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393 void USART_ClearITPendingBit(USART_TypeDef* USARTx, uint16_t USART_IT);
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399 #endif /* __STM32F10x_USART_H */
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412 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
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