uint32_t CanRxMsgTypeDef::RTR
Specifies the type of frame for the received message. This parameter can be a value
of CAN_remote_transmission_request
uint32_t CanRxMsgTypeDef::DLC
Specifies the length of the frame that will be received. This parameter must be a
number between Min_Data = 0 and Max_Data = 8
uint8_t CanRxMsgTypeDef::Data[8]
Contains the data to be received. This parameter must be a number between
Min_Data = 0 and Max_Data = 0xFF
uint32_t CanRxMsgTypeDef::FMI
Specifies the index of the filter the message stored in the mailbox passes through.
This parameter must be a number between Min_Data = 0 and Max_Data = 0xFF
uint32_t CanRxMsgTypeDef::FIFONumber
Specifies the receive FIFO number. This parameter can be CAN_FIFO0 or
CAN_FIFO1
8.1.5 CAN_HandleTypeDef
Data Fields
CAN_TypeDef * Instance
CAN_InitTypeDef Init
CanTxMsgTypeDef * pTxMsg
CanRxMsgTypeDef * pRxMsg
__IO HAL_CAN_StateTypeDef State
HAL_LockTypeDef Lock
__IO uint32_t ErrorCode
Field Documentation
CAN_TypeDef* CAN_HandleTypeDef::Instance
Register base address
CAN_InitTypeDef CAN_HandleTypeDef::Init
CAN required parameters
CanTxMsgTypeDef* CAN_HandleTypeDef::pTxMsg
Pointer to transmit structure
CanRxMsgTypeDef* CAN_HandleTypeDef::pRxMsg
Pointer to reception structure
__IO HAL_CAN_StateTypeDef CAN_HandleTypeDef::State
CAN communication state
HAL_LockTypeDef CAN_HandleTypeDef::Lock
CAN locking object
__IO uint32_t CAN_HandleTypeDef::ErrorCode
CAN Error code This parameter can be a value of CAN_Error_Code
8.2 CAN Firmware driver API description
8.2.1 How to use this driver
1. Enable the CAN controller interface clock using __HAL_RCC_CAN1_CLK_ENABLE()
for CAN1 and __HAL_RCC_CAN2_CLK_ENABLE() for CAN2 In case you are using
CAN2 only, you have to enable the CAN1 clock.
2. CAN pins configuration
Enable the clock for the CAN GPIOs using the following function:
__GPIOx_CLK_ENABLE()
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