CAN_Mailboxes_Definition CAN Mailboxes Definition

CAN_Mailboxes_Definition是用于定义CAN总线发送和接收邮箱的结构体，在HAL库中经常被使用。该结构体用于定义CAN总线的发送和接收邮箱的数量、优先级和过滤器等信息。

在HAL库中，CAN_Mailboxes_Definition结构体的定义如下：

typedef struct
{
  uint32_t IdType;  /*!< Specifies the type of identifier for the message that will be transmitted.
                          This parameter can be a value of @ref CAN_identifier_type */

  uint32_t StdId;   /*!< Specifies the standard identifier. This parameter can be a value
                          between 0 to 0x7FF. */

  uint32_t ExtId;   /*!< Specifies the extended identifier. This parameter can be a value
                          between 0 to 0x1FFFFFFF. */

  uint32_t IDE;     /*!< Specifies the type of identifier for the message that will be transmitted.
                          This parameter can be a value of @ref CAN_identifier_type */

  uint32_t RTR;     /*!< Specifies the type of frame for the message that will be transmitted.
                          This parameter can be a value of @ref CAN_remote_transmission_request */

  uint32_t DLC;     /*!< Specifies the length of the frame that will be transmitted. This parameter
                          can be a value between 0 to 8. */

  uint32_t TransmitGlobalTime; /*!< Specifies whether the message will be sent using the CAN time
                                     synchronization protocol. This parameter can be a value of
                                     @ref CAN_TX_sync */

  uint32_t TxMailbox; /*!< Specifies the transmit mailbox which will be used for transmission.
                             This parameter can be a value of @ref CAN_Tx_mailboxes */

  uint32_t FilterMatchIndex; /*!< Specifies the filter match index. */

  uint32_t FilterMatchMask; /*!< Specifies the filter match mask. */

  uint32_t FilterFIFOAssignment; /*!< Specifies the FIFO assignment for the filter. */

  uint32_t FilterActivation; /*!< Specifies the activation status of the filter. */

  uint32_t BankNumber; /*!< Specifies the filter bank number. */

}CAN_Mailboxes_DefinitionTypeDef;

该结构体中包含了发送和接收CAN消息的相关参数，如标准标识符、扩展标识符、帧类型、数据长度等信息，同时还包含了过滤器、邮箱等相关信息。

在使用CAN_Mailboxes_Definition结构体时，需要先定义一个该结构体的实例，然后根据需要设置各个参数的值。最后，可以将该结构体作为参数传递给HAL_CAN_ConfigFilter和HAL_CAN_AddTxMessage等函数，用于配置CAN过滤器和添加CAN消息到发送缓冲区中。