Detailed Description

Structure for MCAN Rx Buffer element which takes data as a pointer. Using this the MCAL CAN driver can optimize one full copy of CAN payload by a simple pointer assignment. Please note that as the data field is a pointer so wrong value for payload size passed from application will lead to data corruption.

Data Fields
uint32_t	id

uint32_t	rtr

uint32_t	xtd

uint32_t	esi

uint32_t	rxts

uint32_t	dlc

uint32_t	brs

uint32_t	fdf

uint32_t	fidx

uint32_t	anmf

uint8_t *	data

Field Documentation

◆ id

uint32_t MCAN_RxBufElementNoCpy::id

Identifier

◆ rtr

uint32_t MCAN_RxBufElementNoCpy::rtr

Remote Transmission Request 0 = Received frame is a data frame 1 = Received frame is a remote frame

◆ xtd

uint32_t MCAN_RxBufElementNoCpy::xtd

Extended Identifier 0 = 11-bit standard identifier 1 = 29-bit extended identifier

◆ esi

uint32_t MCAN_RxBufElementNoCpy::esi

Error State Indicator 0 = Transmitting node is error active 1 = Transmitting node is error passive

◆ rxts

uint32_t MCAN_RxBufElementNoCpy::rxts

Rx Timestamp

◆ dlc

uint32_t MCAN_RxBufElementNoCpy::dlc

Data Length Code 0-8 = CAN + CAN FD: received frame has 0-8 data bytes 9-15 = CAN: received frame has 8 data bytes 9-15 = CAN FD: received frame has 12/16/20/24/32/48/64 data bytes

◆ brs

uint32_t MCAN_RxBufElementNoCpy::brs

Bit Rat Switching 0 = Frame received without bit rate switching 1 = Frame received with bit rate switching

◆ fdf

uint32_t MCAN_RxBufElementNoCpy::fdf

FD Format 0 = Standard frame format 1 = CAN FD frame format (new DLC-coding and CRC)

◆ fidx

uint32_t MCAN_RxBufElementNoCpy::fidx

Filter Index

◆ anmf

uint32_t MCAN_RxBufElementNoCpy::anmf

Accepted Non-matching Frame 0 = Received frame matching filter index FIDX 1 = Received frame did not match any Rx filter element

◆ data

uint8_t* MCAN_RxBufElementNoCpy::data

Data bytes. Only first dlc number of bytes are valid.