Transmit frame layout written into CAN hardware memory. More...

#include <can.h>

Data Fields
struct {
union {
struct {
uint32_t dlc:12
uint32_t id:11
uint32_t reserved:1
uint32_t esi:1
uint32_t brs:1
uint32_t rtr:1
uint32_t ide:1
uint32_t frame_type:4
} fields
uint32_t raw
} signal_desc
uint32_t ext_id
uint32_t reserved
}	header
uint8_t	data [CAN_MAX_DATA_LENGTH]
uint8_t	reserved [CAN_TX_DESCRIPTOR_RESERVED_BYTES]

Detailed Description

Transmit frame layout written into CAN hardware memory.

Field Documentation

◆ dlc

uint32_t can_tx_frame_t::dlc

Payload length in bytes before CAN FD DLC encoding

◆ id

uint32_t can_tx_frame_t::id

11-bit identifier

◆ reserved [1/2]

uint32_t can_tx_frame_t::reserved

Reserved bit

Reserved field

◆ esi

uint32_t can_tx_frame_t::esi

Error state indicator (FD)

◆ brs

uint32_t can_tx_frame_t::brs

Bit rate switch (FD)

◆ rtr

uint32_t can_tx_frame_t::rtr

Remote transmission request

◆ ide

uint32_t can_tx_frame_t::ide

Identifier extension

◆ frame_type

uint32_t can_tx_frame_t::frame_type

CAN_FRAME_CLASSIC or CAN_FRAME_FD only

◆ raw

uint32_t can_tx_frame_t::raw

Raw header value

◆ ext_id

uint32_t can_tx_frame_t::ext_id

Extended 29-bit identifier

◆ data

uint8_t can_tx_frame_t::data[CAN_MAX_DATA_LENGTH]

Frame data payload

◆ reserved [2/2]

uint8_t can_tx_frame_t::reserved[CAN_TX_DESCRIPTOR_RESERVED_BYTES]

Reserved for cache-line aligned descriptor arrays

Data Fields