isotp_msg_id Struct Reference

ISO-TP message id struct. More...

#include <isotp.h>

Data Fields
union {
uint32_t   std_id: 11
uint32_t   ext_id: 29
};
	CAN identifier.
uint8_t	ext_addr
	ISO-TP extended address (if used)
uint8_t	dl
	ISO-TP frame data length (TX_DL for TX address or RX_DL for RX address).
uint8_t	flags
	Flags.

Detailed Description

ISO-TP message id struct.

Used to pass addresses to the bind and send functions.

Field Documentation

union { ... } isotp_msg_id::@121

CAN identifier.

If ISO-TP fixed addressing is used, isotp_bind ignores SA and priority sections and modifies TA section in flow control frames.

dl

uint8_t isotp_msg_id::dl

ISO-TP frame data length (TX_DL for TX address or RX_DL for RX address).

Valid values are 8 for classical CAN or 8, 12, 16, 20, 24, 32, 48 and 64 for CAN FD.

0 will be interpreted as 8 or 64 (if ISOTP_MSG_FDF is set).

The value for incoming transmissions (RX_DL) is determined automatically based on the received first frame and does not need to be set during initialization.

ext_addr

uint8_t isotp_msg_id::ext_addr

ISO-TP extended address (if used)

ext_id

uint32_t isotp_msg_id::ext_id

flags

uint8_t isotp_msg_id::flags

Flags.

See also

ISOTP_MSG_FLAGS.

std_id

uint32_t isotp_msg_id::std_id

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The documentation for this struct was generated from the following file:

• zephyr/canbus/isotp.h