CAN

==== STK CAN DIP switches ====
—- ARM architecture —-
STKA28
STKA53
STKA335x
STKA6x
STKA6ULx
STKA7x
STKA57xx
STKA8Xx
STKA8XxS
—- QorlQ Layerscape —-
STKLS102xA
STKLS1028A

root@MBaXXX:~ canconfig can<interface nr> bitrate <baudrate>

example

root@MBAXXX:~ canconfig can0 bitrate 500000

root@MBaXXX:~ ifconfig can<interface nr> up

example

root@MBaXXX:~ ifconfig can0 up

root@MBaXXX:~ candump can1&
root@MBaXXX:~ cansend can0 <byte1> <byte2>

example

root@MBaXXX:~ candump can1&
root@MBaXXX:~ cansend can0 0xte 0xst

STKa8Xx

DIP switch SW1 and SW2 is used to configure the CAN interfaces CAN1 and CAN2.
${{:intern:general_information:tutorial:mba8xx-can.png?400|$

root@MBaXXX:~ ip link show

output:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: can0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 10
    link/can
3: can1: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 10
    link/can

root@MBaXXX:~ ip link set can0 up
root@MBaXXX:~ ip link set can1 up

root@MBaXXX:~ ip link set can0 down
root@MBaXXX:~ ip link set can1 down
root@MBaXXX:~ ip link set can0 type can bitrate <baudrate>
root@MBaXXX:~ ip link set can1 type can bitrate <baudrate>

Connect wires to the provided PHOENIX connectors from the Starterkit as shown below.

Following command examples shows how to test the CAN interface

root@MBaXXX:~ ip link set can0 down
root@MBaXXX:~ ip link set can1 down

root@MBaXXX:~ ip link set can0 type can bitrate 500000
root@MBaXXX:~ ip link set can1 type can bitrate 500000

root@MBaXXX:~ ip link set can0 up
root@MBaXXX:~ ip link set can1 up

root@MBaXXX:~ candump can1&
root@MBaXXX:~ cansend can0 5A1#11.2233.44556677.88

output:
root@tqma8xqp-mba8xx:~#   can1  5A1   [8]  11 22 33 44 55 66 77 88

root@MBaXXX:~ killall candump
root@MBaXXX:~ candump can0&
root@MBaXXX:~ cansend can1 5A1#11.2233.44556677.88

output:
root@tqma8xqp-mba8xx:~#   can0  5A1   [8]  11 22 33 44 55 66 77 88

STKa6ULx

DIP switch S3 is used to configure the CAN interfaces CAN1 and CAN2.

root@MBaXXX:~ ip link show

output:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: can0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 10
    link/can
3: can1: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 10
    link/can

root@MBaXXX:~ ip link set can0 up
root@MBaXXX:~ ip link set can1 up

root@MBaXXX:~ ip link set can0 down
root@MBaXXX:~ ip link set can1 down
root@MBaXXX:~ ip link set can0 type can bitrate <baudrate>
root@MBaXXX:~ ip link set can1 type can bitrate <baudrate>

Connect wires to the provided PHOENIX connectors from the Starterkit as shown below.

Following command examples shows how to test the CAN interface

root@MBaXXX:~ ip link set can0 down
root@MBaXXX:~ ip link set can1 down

root@MBaXXX:~ ip link set can0 type can bitrate 500000
root@MBaXXX:~ ip link set can1 type can bitrate 500000

root@MBaXXX:~ ip link set can0 up
root@MBaXXX:~ ip link set can1 up

root@MBaXXX:~ candump can1&
root@MBaXXX:~ cansend can0 5A1#11.2233.44556677.88

output:
root@tqma8xqp-mba8xx:~#   can1  5A1   [8]  11 22 33 44 55 66 77 88

root@MBaXXX:~ killall candump
root@MBaXXX:~ candump can0&
root@MBaXXX:~ cansend can1 5A1#11.2233.44556677.88

output:
root@tqma8xqp-mba8xx:~#   can0  5A1   [8]  11 22 33 44 55 66 77 88

STKa6x

DIP switch S13 is used to configure the CAN interfaces CAN1 and CAN2.

root@MBaXXX:~ ip link show

output:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: can0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 10
    link/can
3: can1: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 10
    link/can

root@MBaXXX:~ ip link set can0 up
root@MBaXXX:~ ip link set can1 up

root@MBaXXX:~ ip link set can0 down
root@MBaXXX:~ ip link set can1 down
root@MBaXXX:~ ip link set can0 type can bitrate <baudrate>
root@MBaXXX:~ ip link set can1 type can bitrate <baudrate>

Connect wires to the provided PHOENIX connectors from the Starterkit as shown below.

Following command examples shows how to test the CAN interface

root@MBaXXX:~ ip link set can0 down
root@MBaXXX:~ ip link set can1 down

root@MBaXXX:~ ip link set can0 type can bitrate 500000
root@MBaXXX:~ ip link set can1 type can bitrate 500000

root@MBaXXX:~ ip link set can0 up
root@MBaXXX:~ ip link set can1 up

root@MBaXXX:~ candump can1&
root@MBaXXX:~ cansend can0 5A1#11.2233.44556677.88

output:
root@tqma8xqp-mba8xx:~#   can1  5A1   [8]  11 22 33 44 55 66 77 88

root@MBaXXX:~ killall candump
root@MBaXXX:~ candump can0&
root@MBaXXX:~ cansend can1 5A1#11.2233.44556677.88

output:
root@tqma8xqp-mba8xx:~#   can0  5A1   [8]  11 22 33 44 55 66 77 88

Disclaimer
TQ-Systems GmbH provides the Board Support Packages (BSP) free of charge. The software included in the shipment has been configured individually for the starter kits. The software is only intended to evaluate the module. The use of the Board Support Packages (BSP) is only allowed within the scope of functionality described by TQ-Systems GmbH. TQ-Systems GmbH does not accept any liability for all further changes of the Board Support Package and for any damage resulting from its use.

CAN

Setting CAN bautrate

Activate CAN Interface

CAN Test CAN0 to CAN1

CAN configuration MBa8Xx

List available CAN Interfaces

Activate CAN Interface

Change Default CAN Bitrate

Loopback Test CAN Interface

CAN configuration MBa6ULx

List available CAN Interfaces

Activate CAN Interface

Change Default CAN Bitrate

Loopback Test CAN Interface

CAN configuration MBa6ULx

List available CAN Interfaces

Activate CAN Interface

Change Default CAN Bitrate

Loopback Test CAN Interface