2 ******************************************************************************
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3 * @file stm32f4xx_can.h
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4 * @author MCD Application Team
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6 * @date 30-September-2011
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7 * @brief This file contains all the functions prototypes for the CAN firmware
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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 __STM32F4xx_CAN_H
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25 #define __STM32F4xx_CAN_H
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31 /* Includes ------------------------------------------------------------------*/
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32 #include "stm32f4xx.h"
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34 /** @addtogroup STM32F4xx_StdPeriph_Driver
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42 /* Exported types ------------------------------------------------------------*/
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44 #define IS_CAN_ALL_PERIPH(PERIPH) (((PERIPH) == CAN1) || \
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48 * @brief CAN init structure definition
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52 uint16_t CAN_Prescaler; /*!< Specifies the length of a time quantum.
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53 It ranges from 1 to 1024. */
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55 uint8_t CAN_Mode; /*!< Specifies the CAN operating mode.
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56 This parameter can be a value of @ref CAN_operating_mode */
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58 uint8_t CAN_SJW; /*!< Specifies the maximum number of time quanta
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59 the CAN hardware is allowed to lengthen or
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60 shorten a bit to perform resynchronization.
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61 This parameter can be a value of @ref CAN_synchronisation_jump_width */
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63 uint8_t CAN_BS1; /*!< Specifies the number of time quanta in Bit
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64 Segment 1. This parameter can be a value of
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65 @ref CAN_time_quantum_in_bit_segment_1 */
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67 uint8_t CAN_BS2; /*!< Specifies the number of time quanta in Bit Segment 2.
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68 This parameter can be a value of @ref CAN_time_quantum_in_bit_segment_2 */
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70 FunctionalState CAN_TTCM; /*!< Enable or disable the time triggered communication mode.
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71 This parameter can be set either to ENABLE or DISABLE. */
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73 FunctionalState CAN_ABOM; /*!< Enable or disable the automatic bus-off management.
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74 This parameter can be set either to ENABLE or DISABLE. */
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76 FunctionalState CAN_AWUM; /*!< Enable or disable the automatic wake-up mode.
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77 This parameter can be set either to ENABLE or DISABLE. */
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79 FunctionalState CAN_NART; /*!< Enable or disable the non-automatic retransmission mode.
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80 This parameter can be set either to ENABLE or DISABLE. */
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82 FunctionalState CAN_RFLM; /*!< Enable or disable the Receive FIFO Locked mode.
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83 This parameter can be set either to ENABLE or DISABLE. */
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85 FunctionalState CAN_TXFP; /*!< Enable or disable the transmit FIFO priority.
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86 This parameter can be set either to ENABLE or DISABLE. */
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90 * @brief CAN filter init structure definition
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94 uint16_t CAN_FilterIdHigh; /*!< Specifies the filter identification number (MSBs for a 32-bit
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95 configuration, first one for a 16-bit configuration).
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96 This parameter can be a value between 0x0000 and 0xFFFF */
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98 uint16_t CAN_FilterIdLow; /*!< Specifies the filter identification number (LSBs for a 32-bit
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99 configuration, second one for a 16-bit configuration).
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100 This parameter can be a value between 0x0000 and 0xFFFF */
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102 uint16_t CAN_FilterMaskIdHigh; /*!< Specifies the filter mask number or identification number,
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103 according to the mode (MSBs for a 32-bit configuration,
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104 first one for a 16-bit configuration).
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105 This parameter can be a value between 0x0000 and 0xFFFF */
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107 uint16_t CAN_FilterMaskIdLow; /*!< Specifies the filter mask number or identification number,
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108 according to the mode (LSBs for a 32-bit configuration,
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109 second one for a 16-bit configuration).
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110 This parameter can be a value between 0x0000 and 0xFFFF */
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112 uint16_t CAN_FilterFIFOAssignment; /*!< Specifies the FIFO (0 or 1) which will be assigned to the filter.
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113 This parameter can be a value of @ref CAN_filter_FIFO */
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115 uint8_t CAN_FilterNumber; /*!< Specifies the filter which will be initialized. It ranges from 0 to 13. */
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117 uint8_t CAN_FilterMode; /*!< Specifies the filter mode to be initialized.
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118 This parameter can be a value of @ref CAN_filter_mode */
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120 uint8_t CAN_FilterScale; /*!< Specifies the filter scale.
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121 This parameter can be a value of @ref CAN_filter_scale */
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123 FunctionalState CAN_FilterActivation; /*!< Enable or disable the filter.
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124 This parameter can be set either to ENABLE or DISABLE. */
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125 } CAN_FilterInitTypeDef;
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128 * @brief CAN Tx message structure definition
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132 uint32_t StdId; /*!< Specifies the standard identifier.
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133 This parameter can be a value between 0 to 0x7FF. */
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135 uint32_t ExtId; /*!< Specifies the extended identifier.
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136 This parameter can be a value between 0 to 0x1FFFFFFF. */
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138 uint8_t IDE; /*!< Specifies the type of identifier for the message that
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139 will be transmitted. This parameter can be a value
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140 of @ref CAN_identifier_type */
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142 uint8_t RTR; /*!< Specifies the type of frame for the message that will
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143 be transmitted. This parameter can be a value of
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144 @ref CAN_remote_transmission_request */
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146 uint8_t DLC; /*!< Specifies the length of the frame that will be
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147 transmitted. This parameter can be a value between
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150 uint8_t Data[8]; /*!< Contains the data to be transmitted. It ranges from 0
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155 * @brief CAN Rx message structure definition
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159 uint32_t StdId; /*!< Specifies the standard identifier.
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160 This parameter can be a value between 0 to 0x7FF. */
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162 uint32_t ExtId; /*!< Specifies the extended identifier.
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163 This parameter can be a value between 0 to 0x1FFFFFFF. */
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165 uint8_t IDE; /*!< Specifies the type of identifier for the message that
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166 will be received. This parameter can be a value of
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167 @ref CAN_identifier_type */
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169 uint8_t RTR; /*!< Specifies the type of frame for the received message.
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170 This parameter can be a value of
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171 @ref CAN_remote_transmission_request */
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173 uint8_t DLC; /*!< Specifies the length of the frame that will be received.
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174 This parameter can be a value between 0 to 8 */
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176 uint8_t Data[8]; /*!< Contains the data to be received. It ranges from 0 to
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179 uint8_t FMI; /*!< Specifies the index of the filter the message stored in
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180 the mailbox passes through. This parameter can be a
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181 value between 0 to 0xFF */
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184 /* Exported constants --------------------------------------------------------*/
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186 /** @defgroup CAN_Exported_Constants
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190 /** @defgroup CAN_InitStatus
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194 #define CAN_InitStatus_Failed ((uint8_t)0x00) /*!< CAN initialization failed */
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195 #define CAN_InitStatus_Success ((uint8_t)0x01) /*!< CAN initialization OK */
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198 /* Legacy defines */
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199 #define CANINITFAILED CAN_InitStatus_Failed
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200 #define CANINITOK CAN_InitStatus_Success
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205 /** @defgroup CAN_operating_mode
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209 #define CAN_Mode_Normal ((uint8_t)0x00) /*!< normal mode */
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210 #define CAN_Mode_LoopBack ((uint8_t)0x01) /*!< loopback mode */
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211 #define CAN_Mode_Silent ((uint8_t)0x02) /*!< silent mode */
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212 #define CAN_Mode_Silent_LoopBack ((uint8_t)0x03) /*!< loopback combined with silent mode */
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214 #define IS_CAN_MODE(MODE) (((MODE) == CAN_Mode_Normal) || \
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215 ((MODE) == CAN_Mode_LoopBack)|| \
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216 ((MODE) == CAN_Mode_Silent) || \
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217 ((MODE) == CAN_Mode_Silent_LoopBack))
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224 * @defgroup CAN_operating_mode
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227 #define CAN_OperatingMode_Initialization ((uint8_t)0x00) /*!< Initialization mode */
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228 #define CAN_OperatingMode_Normal ((uint8_t)0x01) /*!< Normal mode */
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229 #define CAN_OperatingMode_Sleep ((uint8_t)0x02) /*!< sleep mode */
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232 #define IS_CAN_OPERATING_MODE(MODE) (((MODE) == CAN_OperatingMode_Initialization) ||\
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233 ((MODE) == CAN_OperatingMode_Normal)|| \
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234 ((MODE) == CAN_OperatingMode_Sleep))
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240 * @defgroup CAN_operating_mode_status
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244 #define CAN_ModeStatus_Failed ((uint8_t)0x00) /*!< CAN entering the specific mode failed */
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245 #define CAN_ModeStatus_Success ((uint8_t)!CAN_ModeStatus_Failed) /*!< CAN entering the specific mode Succeed */
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250 /** @defgroup CAN_synchronisation_jump_width
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253 #define CAN_SJW_1tq ((uint8_t)0x00) /*!< 1 time quantum */
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254 #define CAN_SJW_2tq ((uint8_t)0x01) /*!< 2 time quantum */
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255 #define CAN_SJW_3tq ((uint8_t)0x02) /*!< 3 time quantum */
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256 #define CAN_SJW_4tq ((uint8_t)0x03) /*!< 4 time quantum */
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258 #define IS_CAN_SJW(SJW) (((SJW) == CAN_SJW_1tq) || ((SJW) == CAN_SJW_2tq)|| \
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259 ((SJW) == CAN_SJW_3tq) || ((SJW) == CAN_SJW_4tq))
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264 /** @defgroup CAN_time_quantum_in_bit_segment_1
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267 #define CAN_BS1_1tq ((uint8_t)0x00) /*!< 1 time quantum */
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268 #define CAN_BS1_2tq ((uint8_t)0x01) /*!< 2 time quantum */
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269 #define CAN_BS1_3tq ((uint8_t)0x02) /*!< 3 time quantum */
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270 #define CAN_BS1_4tq ((uint8_t)0x03) /*!< 4 time quantum */
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271 #define CAN_BS1_5tq ((uint8_t)0x04) /*!< 5 time quantum */
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272 #define CAN_BS1_6tq ((uint8_t)0x05) /*!< 6 time quantum */
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273 #define CAN_BS1_7tq ((uint8_t)0x06) /*!< 7 time quantum */
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274 #define CAN_BS1_8tq ((uint8_t)0x07) /*!< 8 time quantum */
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275 #define CAN_BS1_9tq ((uint8_t)0x08) /*!< 9 time quantum */
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276 #define CAN_BS1_10tq ((uint8_t)0x09) /*!< 10 time quantum */
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277 #define CAN_BS1_11tq ((uint8_t)0x0A) /*!< 11 time quantum */
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278 #define CAN_BS1_12tq ((uint8_t)0x0B) /*!< 12 time quantum */
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279 #define CAN_BS1_13tq ((uint8_t)0x0C) /*!< 13 time quantum */
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280 #define CAN_BS1_14tq ((uint8_t)0x0D) /*!< 14 time quantum */
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281 #define CAN_BS1_15tq ((uint8_t)0x0E) /*!< 15 time quantum */
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282 #define CAN_BS1_16tq ((uint8_t)0x0F) /*!< 16 time quantum */
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284 #define IS_CAN_BS1(BS1) ((BS1) <= CAN_BS1_16tq)
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289 /** @defgroup CAN_time_quantum_in_bit_segment_2
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292 #define CAN_BS2_1tq ((uint8_t)0x00) /*!< 1 time quantum */
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293 #define CAN_BS2_2tq ((uint8_t)0x01) /*!< 2 time quantum */
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294 #define CAN_BS2_3tq ((uint8_t)0x02) /*!< 3 time quantum */
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295 #define CAN_BS2_4tq ((uint8_t)0x03) /*!< 4 time quantum */
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296 #define CAN_BS2_5tq ((uint8_t)0x04) /*!< 5 time quantum */
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297 #define CAN_BS2_6tq ((uint8_t)0x05) /*!< 6 time quantum */
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298 #define CAN_BS2_7tq ((uint8_t)0x06) /*!< 7 time quantum */
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299 #define CAN_BS2_8tq ((uint8_t)0x07) /*!< 8 time quantum */
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301 #define IS_CAN_BS2(BS2) ((BS2) <= CAN_BS2_8tq)
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306 /** @defgroup CAN_clock_prescaler
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309 #define IS_CAN_PRESCALER(PRESCALER) (((PRESCALER) >= 1) && ((PRESCALER) <= 1024))
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314 /** @defgroup CAN_filter_number
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317 #define IS_CAN_FILTER_NUMBER(NUMBER) ((NUMBER) <= 27)
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322 /** @defgroup CAN_filter_mode
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325 #define CAN_FilterMode_IdMask ((uint8_t)0x00) /*!< identifier/mask mode */
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326 #define CAN_FilterMode_IdList ((uint8_t)0x01) /*!< identifier list mode */
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328 #define IS_CAN_FILTER_MODE(MODE) (((MODE) == CAN_FilterMode_IdMask) || \
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329 ((MODE) == CAN_FilterMode_IdList))
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334 /** @defgroup CAN_filter_scale
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337 #define CAN_FilterScale_16bit ((uint8_t)0x00) /*!< Two 16-bit filters */
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338 #define CAN_FilterScale_32bit ((uint8_t)0x01) /*!< One 32-bit filter */
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340 #define IS_CAN_FILTER_SCALE(SCALE) (((SCALE) == CAN_FilterScale_16bit) || \
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341 ((SCALE) == CAN_FilterScale_32bit))
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346 /** @defgroup CAN_filter_FIFO
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349 #define CAN_Filter_FIFO0 ((uint8_t)0x00) /*!< Filter FIFO 0 assignment for filter x */
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350 #define CAN_Filter_FIFO1 ((uint8_t)0x01) /*!< Filter FIFO 1 assignment for filter x */
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351 #define IS_CAN_FILTER_FIFO(FIFO) (((FIFO) == CAN_FilterFIFO0) || \
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352 ((FIFO) == CAN_FilterFIFO1))
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354 /* Legacy defines */
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355 #define CAN_FilterFIFO0 CAN_Filter_FIFO0
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356 #define CAN_FilterFIFO1 CAN_Filter_FIFO1
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361 /** @defgroup CAN_Start_bank_filter_for_slave_CAN
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364 #define IS_CAN_BANKNUMBER(BANKNUMBER) (((BANKNUMBER) >= 1) && ((BANKNUMBER) <= 27))
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369 /** @defgroup CAN_Tx
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372 #define IS_CAN_TRANSMITMAILBOX(TRANSMITMAILBOX) ((TRANSMITMAILBOX) <= ((uint8_t)0x02))
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373 #define IS_CAN_STDID(STDID) ((STDID) <= ((uint32_t)0x7FF))
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374 #define IS_CAN_EXTID(EXTID) ((EXTID) <= ((uint32_t)0x1FFFFFFF))
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375 #define IS_CAN_DLC(DLC) ((DLC) <= ((uint8_t)0x08))
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380 /** @defgroup CAN_identifier_type
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383 #define CAN_Id_Standard ((uint32_t)0x00000000) /*!< Standard Id */
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384 #define CAN_Id_Extended ((uint32_t)0x00000004) /*!< Extended Id */
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385 #define IS_CAN_IDTYPE(IDTYPE) (((IDTYPE) == CAN_Id_Standard) || \
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386 ((IDTYPE) == CAN_Id_Extended))
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388 /* Legacy defines */
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389 #define CAN_ID_STD CAN_Id_Standard
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390 #define CAN_ID_EXT CAN_Id_Extended
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395 /** @defgroup CAN_remote_transmission_request
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398 #define CAN_RTR_Data ((uint32_t)0x00000000) /*!< Data frame */
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399 #define CAN_RTR_Remote ((uint32_t)0x00000002) /*!< Remote frame */
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400 #define IS_CAN_RTR(RTR) (((RTR) == CAN_RTR_Data) || ((RTR) == CAN_RTR_Remote))
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402 /* Legacy defines */
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403 #define CAN_RTR_DATA CAN_RTR_Data
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404 #define CAN_RTR_REMOTE CAN_RTR_Remote
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409 /** @defgroup CAN_transmit_constants
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412 #define CAN_TxStatus_Failed ((uint8_t)0x00)/*!< CAN transmission failed */
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413 #define CAN_TxStatus_Ok ((uint8_t)0x01) /*!< CAN transmission succeeded */
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414 #define CAN_TxStatus_Pending ((uint8_t)0x02) /*!< CAN transmission pending */
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415 #define CAN_TxStatus_NoMailBox ((uint8_t)0x04) /*!< CAN cell did not provide
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416 an empty mailbox */
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417 /* Legacy defines */
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418 #define CANTXFAILED CAN_TxStatus_Failed
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419 #define CANTXOK CAN_TxStatus_Ok
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420 #define CANTXPENDING CAN_TxStatus_Pending
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421 #define CAN_NO_MB CAN_TxStatus_NoMailBox
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426 /** @defgroup CAN_receive_FIFO_number_constants
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429 #define CAN_FIFO0 ((uint8_t)0x00) /*!< CAN FIFO 0 used to receive */
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430 #define CAN_FIFO1 ((uint8_t)0x01) /*!< CAN FIFO 1 used to receive */
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432 #define IS_CAN_FIFO(FIFO) (((FIFO) == CAN_FIFO0) || ((FIFO) == CAN_FIFO1))
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437 /** @defgroup CAN_sleep_constants
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440 #define CAN_Sleep_Failed ((uint8_t)0x00) /*!< CAN did not enter the sleep mode */
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441 #define CAN_Sleep_Ok ((uint8_t)0x01) /*!< CAN entered the sleep mode */
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443 /* Legacy defines */
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444 #define CANSLEEPFAILED CAN_Sleep_Failed
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445 #define CANSLEEPOK CAN_Sleep_Ok
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450 /** @defgroup CAN_wake_up_constants
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453 #define CAN_WakeUp_Failed ((uint8_t)0x00) /*!< CAN did not leave the sleep mode */
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454 #define CAN_WakeUp_Ok ((uint8_t)0x01) /*!< CAN leaved the sleep mode */
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456 /* Legacy defines */
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457 #define CANWAKEUPFAILED CAN_WakeUp_Failed
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458 #define CANWAKEUPOK CAN_WakeUp_Ok
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464 * @defgroup CAN_Error_Code_constants
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467 #define CAN_ErrorCode_NoErr ((uint8_t)0x00) /*!< No Error */
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468 #define CAN_ErrorCode_StuffErr ((uint8_t)0x10) /*!< Stuff Error */
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469 #define CAN_ErrorCode_FormErr ((uint8_t)0x20) /*!< Form Error */
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470 #define CAN_ErrorCode_ACKErr ((uint8_t)0x30) /*!< Acknowledgment Error */
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471 #define CAN_ErrorCode_BitRecessiveErr ((uint8_t)0x40) /*!< Bit Recessive Error */
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472 #define CAN_ErrorCode_BitDominantErr ((uint8_t)0x50) /*!< Bit Dominant Error */
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473 #define CAN_ErrorCode_CRCErr ((uint8_t)0x60) /*!< CRC Error */
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474 #define CAN_ErrorCode_SoftwareSetErr ((uint8_t)0x70) /*!< Software Set Error */
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479 /** @defgroup CAN_flags
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482 /* If the flag is 0x3XXXXXXX, it means that it can be used with CAN_GetFlagStatus()
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483 and CAN_ClearFlag() functions. */
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484 /* If the flag is 0x1XXXXXXX, it means that it can only be used with
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485 CAN_GetFlagStatus() function. */
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487 /* Transmit Flags */
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488 #define CAN_FLAG_RQCP0 ((uint32_t)0x38000001) /*!< Request MailBox0 Flag */
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489 #define CAN_FLAG_RQCP1 ((uint32_t)0x38000100) /*!< Request MailBox1 Flag */
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490 #define CAN_FLAG_RQCP2 ((uint32_t)0x38010000) /*!< Request MailBox2 Flag */
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492 /* Receive Flags */
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493 #define CAN_FLAG_FMP0 ((uint32_t)0x12000003) /*!< FIFO 0 Message Pending Flag */
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494 #define CAN_FLAG_FF0 ((uint32_t)0x32000008) /*!< FIFO 0 Full Flag */
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495 #define CAN_FLAG_FOV0 ((uint32_t)0x32000010) /*!< FIFO 0 Overrun Flag */
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496 #define CAN_FLAG_FMP1 ((uint32_t)0x14000003) /*!< FIFO 1 Message Pending Flag */
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497 #define CAN_FLAG_FF1 ((uint32_t)0x34000008) /*!< FIFO 1 Full Flag */
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498 #define CAN_FLAG_FOV1 ((uint32_t)0x34000010) /*!< FIFO 1 Overrun Flag */
\r
500 /* Operating Mode Flags */
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501 #define CAN_FLAG_WKU ((uint32_t)0x31000008) /*!< Wake up Flag */
\r
502 #define CAN_FLAG_SLAK ((uint32_t)0x31000012) /*!< Sleep acknowledge Flag */
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503 /* @note When SLAK interrupt is disabled (SLKIE=0), no polling on SLAKI is possible.
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504 In this case the SLAK bit can be polled.*/
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507 #define CAN_FLAG_EWG ((uint32_t)0x10F00001) /*!< Error Warning Flag */
\r
508 #define CAN_FLAG_EPV ((uint32_t)0x10F00002) /*!< Error Passive Flag */
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509 #define CAN_FLAG_BOF ((uint32_t)0x10F00004) /*!< Bus-Off Flag */
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510 #define CAN_FLAG_LEC ((uint32_t)0x30F00070) /*!< Last error code Flag */
\r
512 #define IS_CAN_GET_FLAG(FLAG) (((FLAG) == CAN_FLAG_LEC) || ((FLAG) == CAN_FLAG_BOF) || \
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513 ((FLAG) == CAN_FLAG_EPV) || ((FLAG) == CAN_FLAG_EWG) || \
\r
514 ((FLAG) == CAN_FLAG_WKU) || ((FLAG) == CAN_FLAG_FOV0) || \
\r
515 ((FLAG) == CAN_FLAG_FF0) || ((FLAG) == CAN_FLAG_FMP0) || \
\r
516 ((FLAG) == CAN_FLAG_FOV1) || ((FLAG) == CAN_FLAG_FF1) || \
\r
517 ((FLAG) == CAN_FLAG_FMP1) || ((FLAG) == CAN_FLAG_RQCP2) || \
\r
518 ((FLAG) == CAN_FLAG_RQCP1)|| ((FLAG) == CAN_FLAG_RQCP0) || \
\r
519 ((FLAG) == CAN_FLAG_SLAK ))
\r
521 #define IS_CAN_CLEAR_FLAG(FLAG)(((FLAG) == CAN_FLAG_LEC) || ((FLAG) == CAN_FLAG_RQCP2) || \
\r
522 ((FLAG) == CAN_FLAG_RQCP1) || ((FLAG) == CAN_FLAG_RQCP0) || \
\r
523 ((FLAG) == CAN_FLAG_FF0) || ((FLAG) == CAN_FLAG_FOV0) ||\
\r
524 ((FLAG) == CAN_FLAG_FF1) || ((FLAG) == CAN_FLAG_FOV1) || \
\r
525 ((FLAG) == CAN_FLAG_WKU) || ((FLAG) == CAN_FLAG_SLAK))
\r
531 /** @defgroup CAN_interrupts
\r
534 #define CAN_IT_TME ((uint32_t)0x00000001) /*!< Transmit mailbox empty Interrupt*/
\r
536 /* Receive Interrupts */
\r
537 #define CAN_IT_FMP0 ((uint32_t)0x00000002) /*!< FIFO 0 message pending Interrupt*/
\r
538 #define CAN_IT_FF0 ((uint32_t)0x00000004) /*!< FIFO 0 full Interrupt*/
\r
539 #define CAN_IT_FOV0 ((uint32_t)0x00000008) /*!< FIFO 0 overrun Interrupt*/
\r
540 #define CAN_IT_FMP1 ((uint32_t)0x00000010) /*!< FIFO 1 message pending Interrupt*/
\r
541 #define CAN_IT_FF1 ((uint32_t)0x00000020) /*!< FIFO 1 full Interrupt*/
\r
542 #define CAN_IT_FOV1 ((uint32_t)0x00000040) /*!< FIFO 1 overrun Interrupt*/
\r
544 /* Operating Mode Interrupts */
\r
545 #define CAN_IT_WKU ((uint32_t)0x00010000) /*!< Wake-up Interrupt*/
\r
546 #define CAN_IT_SLK ((uint32_t)0x00020000) /*!< Sleep acknowledge Interrupt*/
\r
548 /* Error Interrupts */
\r
549 #define CAN_IT_EWG ((uint32_t)0x00000100) /*!< Error warning Interrupt*/
\r
550 #define CAN_IT_EPV ((uint32_t)0x00000200) /*!< Error passive Interrupt*/
\r
551 #define CAN_IT_BOF ((uint32_t)0x00000400) /*!< Bus-off Interrupt*/
\r
552 #define CAN_IT_LEC ((uint32_t)0x00000800) /*!< Last error code Interrupt*/
\r
553 #define CAN_IT_ERR ((uint32_t)0x00008000) /*!< Error Interrupt*/
\r
555 /* Flags named as Interrupts : kept only for FW compatibility */
\r
556 #define CAN_IT_RQCP0 CAN_IT_TME
\r
557 #define CAN_IT_RQCP1 CAN_IT_TME
\r
558 #define CAN_IT_RQCP2 CAN_IT_TME
\r
561 #define IS_CAN_IT(IT) (((IT) == CAN_IT_TME) || ((IT) == CAN_IT_FMP0) ||\
\r
562 ((IT) == CAN_IT_FF0) || ((IT) == CAN_IT_FOV0) ||\
\r
563 ((IT) == CAN_IT_FMP1) || ((IT) == CAN_IT_FF1) ||\
\r
564 ((IT) == CAN_IT_FOV1) || ((IT) == CAN_IT_EWG) ||\
\r
565 ((IT) == CAN_IT_EPV) || ((IT) == CAN_IT_BOF) ||\
\r
566 ((IT) == CAN_IT_LEC) || ((IT) == CAN_IT_ERR) ||\
\r
567 ((IT) == CAN_IT_WKU) || ((IT) == CAN_IT_SLK))
\r
569 #define IS_CAN_CLEAR_IT(IT) (((IT) == CAN_IT_TME) || ((IT) == CAN_IT_FF0) ||\
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570 ((IT) == CAN_IT_FOV0)|| ((IT) == CAN_IT_FF1) ||\
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571 ((IT) == CAN_IT_FOV1)|| ((IT) == CAN_IT_EWG) ||\
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572 ((IT) == CAN_IT_EPV) || ((IT) == CAN_IT_BOF) ||\
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573 ((IT) == CAN_IT_LEC) || ((IT) == CAN_IT_ERR) ||\
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574 ((IT) == CAN_IT_WKU) || ((IT) == CAN_IT_SLK))
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583 /* Exported macro ------------------------------------------------------------*/
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584 /* Exported functions --------------------------------------------------------*/
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586 /* Function used to set the CAN configuration to the default reset state *****/
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587 void CAN_DeInit(CAN_TypeDef* CANx);
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589 /* Initialization and Configuration functions *********************************/
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590 uint8_t CAN_Init(CAN_TypeDef* CANx, CAN_InitTypeDef* CAN_InitStruct);
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591 void CAN_FilterInit(CAN_FilterInitTypeDef* CAN_FilterInitStruct);
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592 void CAN_StructInit(CAN_InitTypeDef* CAN_InitStruct);
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593 void CAN_SlaveStartBank(uint8_t CAN_BankNumber);
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594 void CAN_DBGFreeze(CAN_TypeDef* CANx, FunctionalState NewState);
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595 void CAN_TTComModeCmd(CAN_TypeDef* CANx, FunctionalState NewState);
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597 /* CAN Frames Transmission functions ******************************************/
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598 uint8_t CAN_Transmit(CAN_TypeDef* CANx, CanTxMsg* TxMessage);
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599 uint8_t CAN_TransmitStatus(CAN_TypeDef* CANx, uint8_t TransmitMailbox);
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600 void CAN_CancelTransmit(CAN_TypeDef* CANx, uint8_t Mailbox);
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602 /* CAN Frames Reception functions *********************************************/
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603 void CAN_Receive(CAN_TypeDef* CANx, uint8_t FIFONumber, CanRxMsg* RxMessage);
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604 void CAN_FIFORelease(CAN_TypeDef* CANx, uint8_t FIFONumber);
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605 uint8_t CAN_MessagePending(CAN_TypeDef* CANx, uint8_t FIFONumber);
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607 /* Operation modes functions **************************************************/
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608 uint8_t CAN_OperatingModeRequest(CAN_TypeDef* CANx, uint8_t CAN_OperatingMode);
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609 uint8_t CAN_Sleep(CAN_TypeDef* CANx);
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610 uint8_t CAN_WakeUp(CAN_TypeDef* CANx);
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612 /* CAN Bus Error management functions *****************************************/
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613 uint8_t CAN_GetLastErrorCode(CAN_TypeDef* CANx);
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614 uint8_t CAN_GetReceiveErrorCounter(CAN_TypeDef* CANx);
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615 uint8_t CAN_GetLSBTransmitErrorCounter(CAN_TypeDef* CANx);
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617 /* Interrupts and flags management functions **********************************/
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618 void CAN_ITConfig(CAN_TypeDef* CANx, uint32_t CAN_IT, FunctionalState NewState);
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619 FlagStatus CAN_GetFlagStatus(CAN_TypeDef* CANx, uint32_t CAN_FLAG);
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620 void CAN_ClearFlag(CAN_TypeDef* CANx, uint32_t CAN_FLAG);
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621 ITStatus CAN_GetITStatus(CAN_TypeDef* CANx, uint32_t CAN_IT);
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622 void CAN_ClearITPendingBit(CAN_TypeDef* CANx, uint32_t CAN_IT);
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628 #endif /* __STM32F4xx_CAN_H */
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638 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
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